Merge "Add android.system.keystore2-unstable-ndk_platform to vndk.go"
diff --git a/android/androidmk_test.go b/android/androidmk_test.go
index a558f45..8574dc9 100644
--- a/android/androidmk_test.go
+++ b/android/androidmk_test.go
@@ -68,6 +68,7 @@
 }
 
 func TestAndroidMkSingleton_PassesUpdatedAndroidMkDataToCustomCallback(t *testing.T) {
+	t.Parallel()
 	bp := `
 	custom {
 		name: "foo",
@@ -103,6 +104,7 @@
 }
 
 func TestGetDistForGoals(t *testing.T) {
+	t.Parallel()
 	testCases := []struct {
 		bp                     string
 		expectedAndroidMkLines []string
diff --git a/android/apex.go b/android/apex.go
index 1589a17..c01b716 100644
--- a/android/apex.go
+++ b/android/apex.go
@@ -28,20 +28,29 @@
 	SdkVersion_Android10 = uncheckedFinalApiLevel(29)
 )
 
+// ApexInfo describes the metadata common to all modules in an apexBundle.
 type ApexInfo struct {
-	// Name of the apex variation that this module is mutated into
+	// Name of the apex variation that this module is mutated into, or "" for
+	// a platform variant.  Note that a module can be included in multiple APEXes,
+	// in which case, the module is mutated into one or more variants, each of
+	// which is for one or more APEXes.
 	ApexVariationName string
 
 	// Serialized ApiLevel. Use via MinSdkVersion() method. Cannot be stored in
 	// its struct form because this is cloned into properties structs, and
 	// ApiLevel has private members.
 	MinSdkVersionStr string
-	Updatable        bool
-	RequiredSdks     SdkRefs
 
-	InApexes []string
+	// True if the module comes from an updatable APEX.
+	Updatable    bool
+	RequiredSdks SdkRefs
+
+	InApexes     []string
+	ApexContents []*ApexContents
 }
 
+var ApexInfoProvider = blueprint.NewMutatorProvider(ApexInfo{}, "apex")
+
 func (i ApexInfo) mergedName(ctx PathContext) string {
 	name := "apex" + strconv.Itoa(i.MinSdkVersion(ctx).FinalOrFutureInt())
 	for _, sdk := range i.RequiredSdks {
@@ -54,6 +63,18 @@
 	return ApiLevelOrPanic(ctx, this.MinSdkVersionStr)
 }
 
+func (i ApexInfo) IsForPlatform() bool {
+	return i.ApexVariationName == ""
+}
+
+// ApexTestForInfo stores the contents of APEXes for which this module is a test and thus has
+// access to APEX internals.
+type ApexTestForInfo struct {
+	ApexContents []*ApexContents
+}
+
+var ApexTestForInfoProvider = blueprint.NewMutatorProvider(ApexTestForInfo{}, "apex_test_for")
+
 // Extracted from ApexModule to make it easier to define custom subsets of the
 // ApexModule interface and improve code navigation within the IDE.
 type DepIsInSameApex interface {
@@ -87,23 +108,18 @@
 	// Call this before apex.apexMutator is run.
 	BuildForApex(apex ApexInfo)
 
-	// Returns the name of APEX variation that this module will be built for.
-	// Empty string is returned when 'IsForPlatform() == true'. Note that a
-	// module can beincluded in multiple APEXes, in which case, the module
-	// is mutated into one or more variants, each of which is for one or
-	// more APEXes.  This method returns the name of the APEX variation of
-	// the module.
+	// Returns true if this module is present in any APEXes
+	// directly or indirectly.
 	// Call this after apex.apexMutator is run.
-	ApexVariationName() string
+	InAnyApex() bool
 
-	// Returns the name of the APEX modules that this variant of this module
-	// is present in.
+	// Returns true if this module is directly in any APEXes.
 	// Call this after apex.apexMutator is run.
-	InApexes() []string
+	DirectlyInAnyApex() bool
 
-	// Tests whether this module will be built for the platform or not.
-	// This is a shortcut for ApexVariationName() == ""
-	IsForPlatform() bool
+	// Returns true if any variant of this module is directly in any APEXes.
+	// Call this after apex.apexMutator is run.
+	AnyVariantDirectlyInAnyApex() bool
 
 	// Tests if this module could have APEX variants. APEX variants are
 	// created only for the modules that returns true here. This is useful
@@ -116,10 +132,6 @@
 	// libs.
 	IsInstallableToApex() bool
 
-	// Mutate this module into one or more variants each of which is built
-	// for an APEX marked via BuildForApex().
-	CreateApexVariations(mctx BottomUpMutatorContext) []Module
-
 	// Tests if this module is available for the specified APEX or ":platform"
 	AvailableFor(what string) bool
 
@@ -138,9 +150,6 @@
 	// it returns 9 as string
 	ChooseSdkVersion(ctx BaseModuleContext, versionList []string, maxSdkVersion ApiLevel) (string, error)
 
-	// Tests if the module comes from an updatable APEX.
-	Updatable() bool
-
 	// List of APEXes that this module tests. The module has access to
 	// the private part of the listed APEXes even when it is not included in the
 	// APEXes.
@@ -153,11 +162,6 @@
 	// Returns true if this module needs a unique variation per apex, for example if
 	// use_apex_name_macro is set.
 	UniqueApexVariations() bool
-
-	// UpdateUniqueApexVariationsForDeps sets UniqueApexVariationsForDeps if any dependencies
-	// that are in the same APEX have unique APEX variations so that the module can link against
-	// the right variant.
-	UpdateUniqueApexVariationsForDeps(mctx BottomUpMutatorContext)
 }
 
 type ApexProperties struct {
@@ -171,7 +175,21 @@
 	// Default is ["//apex_available:platform"].
 	Apex_available []string
 
-	Info ApexInfo `blueprint:"mutated"`
+	// AnyVariantDirectlyInAnyApex is true in the primary variant of a module if _any_ variant
+	// of the module is directly in any apex.  This includes host, arch, asan, etc. variants.
+	// It is unused in any variant that is not the primary variant.
+	// Ideally this wouldn't be used, as it incorrectly mixes arch variants if only one arch
+	// is in an apex, but a few places depend on it, for example when an ASAN variant is
+	// created before the apexMutator.
+	AnyVariantDirectlyInAnyApex bool `blueprint:"mutated"`
+
+	// DirectlyInAnyApex is true if any APEX variant (including the "" variant used for the
+	// platform) of this module is directly in any APEX.
+	DirectlyInAnyApex bool `blueprint:"mutated"`
+
+	// DirectlyInAnyApex is true if any APEX variant (including the "" variant used for the
+	// platform) of this module is directly or indirectly in any APEX.
+	InAnyApex bool `blueprint:"mutated"`
 
 	NotAvailableForPlatform bool `blueprint:"mutated"`
 
@@ -187,6 +205,15 @@
 	ExcludeFromApexContents()
 }
 
+// Marker interface that identifies dependencies that should inherit the DirectlyInAnyApex
+// state from the parent to the child.  For example, stubs libraries are marked as
+// DirectlyInAnyApex if their implementation is in an apex.
+type CopyDirectlyInAnyApexTag interface {
+	blueprint.DependencyTag
+
+	CopyDirectlyInAnyApex()
+}
+
 // Provides default implementation for the ApexModule interface. APEX-aware
 // modules are expected to include this struct and call InitApexModule().
 type ApexModuleBase struct {
@@ -215,43 +242,6 @@
 	return false
 }
 
-func (m *ApexModuleBase) UpdateUniqueApexVariationsForDeps(mctx BottomUpMutatorContext) {
-	// anyInSameApex returns true if the two ApexInfo lists contain any values in an InApexes list
-	// in common.  It is used instead of DepIsInSameApex because it needs to determine if the dep
-	// is in the same APEX due to being directly included, not only if it is included _because_ it
-	// is a dependency.
-	anyInSameApex := func(a, b []ApexInfo) bool {
-		collectApexes := func(infos []ApexInfo) []string {
-			var ret []string
-			for _, info := range infos {
-				ret = append(ret, info.InApexes...)
-			}
-			return ret
-		}
-
-		aApexes := collectApexes(a)
-		bApexes := collectApexes(b)
-		sort.Strings(bApexes)
-		for _, aApex := range aApexes {
-			index := sort.SearchStrings(bApexes, aApex)
-			if index < len(bApexes) && bApexes[index] == aApex {
-				return true
-			}
-		}
-		return false
-	}
-
-	mctx.VisitDirectDeps(func(dep Module) {
-		if depApexModule, ok := dep.(ApexModule); ok {
-			if anyInSameApex(depApexModule.apexModuleBase().apexVariations, m.apexVariations) &&
-				(depApexModule.UniqueApexVariations() ||
-					depApexModule.apexModuleBase().ApexProperties.UniqueApexVariationsForDeps) {
-				m.ApexProperties.UniqueApexVariationsForDeps = true
-			}
-		}
-	})
-}
-
 func (m *ApexModuleBase) BuildForApex(apex ApexInfo) {
 	m.apexVariationsLock.Lock()
 	defer m.apexVariationsLock.Unlock()
@@ -263,16 +253,16 @@
 	m.apexVariations = append(m.apexVariations, apex)
 }
 
-func (m *ApexModuleBase) ApexVariationName() string {
-	return m.ApexProperties.Info.ApexVariationName
+func (m *ApexModuleBase) DirectlyInAnyApex() bool {
+	return m.ApexProperties.DirectlyInAnyApex
 }
 
-func (m *ApexModuleBase) InApexes() []string {
-	return m.ApexProperties.Info.InApexes
+func (m *ApexModuleBase) AnyVariantDirectlyInAnyApex() bool {
+	return m.ApexProperties.AnyVariantDirectlyInAnyApex
 }
 
-func (m *ApexModuleBase) IsForPlatform() bool {
-	return m.ApexProperties.Info.ApexVariationName == ""
+func (m *ApexModuleBase) InAnyApex() bool {
+	return m.ApexProperties.InAnyApex
 }
 
 func (m *ApexModuleBase) CanHaveApexVariants() bool {
@@ -345,10 +335,6 @@
 	}
 }
 
-func (m *ApexModuleBase) Updatable() bool {
-	return m.ApexProperties.Info.Updatable
-}
-
 type byApexName []ApexInfo
 
 func (a byApexName) Len() int           { return len(a) }
@@ -366,11 +352,13 @@
 		mergedName := apexInfo.mergedName(ctx)
 		if index, exists := seen[mergedName]; exists {
 			merged[index].InApexes = append(merged[index].InApexes, apexName)
+			merged[index].ApexContents = append(merged[index].ApexContents, apexInfo.ApexContents...)
 			merged[index].Updatable = merged[index].Updatable || apexInfo.Updatable
 		} else {
 			seen[mergedName] = len(merged)
 			apexInfo.ApexVariationName = apexInfo.mergedName(ctx)
 			apexInfo.InApexes = CopyOf(apexInfo.InApexes)
+			apexInfo.ApexContents = append([]*ApexContents(nil), apexInfo.ApexContents...)
 			merged = append(merged, apexInfo)
 		}
 		aliases = append(aliases, [2]string{apexName, mergedName})
@@ -378,17 +366,23 @@
 	return merged, aliases
 }
 
-func (m *ApexModuleBase) CreateApexVariations(mctx BottomUpMutatorContext) []Module {
-	if len(m.apexVariations) > 0 {
-		m.checkApexAvailableProperty(mctx)
+func CreateApexVariations(mctx BottomUpMutatorContext, module ApexModule) []Module {
+	base := module.apexModuleBase()
+	if len(base.apexVariations) > 0 {
+		base.checkApexAvailableProperty(mctx)
 
 		var apexVariations []ApexInfo
 		var aliases [][2]string
-		if !mctx.Module().(ApexModule).UniqueApexVariations() && !m.ApexProperties.UniqueApexVariationsForDeps {
-			apexVariations, aliases = mergeApexVariations(mctx, m.apexVariations)
+		if !mctx.Module().(ApexModule).UniqueApexVariations() && !base.ApexProperties.UniqueApexVariationsForDeps {
+			apexVariations, aliases = mergeApexVariations(mctx, base.apexVariations)
 		} else {
-			apexVariations = m.apexVariations
+			apexVariations = base.apexVariations
 		}
+		// base.apexVariations is only needed to propagate the list of apexes from
+		// apexDepsMutator to apexMutator.  It is no longer accurate after
+		// mergeApexVariations, and won't be copied to all but the first created
+		// variant.  Clear it so it doesn't accidentally get used later.
+		base.apexVariations = nil
 
 		sort.Sort(byApexName(apexVariations))
 		variations := []string{}
@@ -400,6 +394,16 @@
 		defaultVariation := ""
 		mctx.SetDefaultDependencyVariation(&defaultVariation)
 
+		var inApex ApexMembership
+		for _, a := range apexVariations {
+			for _, apexContents := range a.ApexContents {
+				inApex = inApex.merge(apexContents.contents[mctx.ModuleName()])
+			}
+		}
+
+		base.ApexProperties.InAnyApex = true
+		base.ApexProperties.DirectlyInAnyApex = inApex == directlyInApex
+
 		modules := mctx.CreateVariations(variations...)
 		for i, mod := range modules {
 			platformVariation := i == 0
@@ -410,7 +414,7 @@
 				mod.MakeUninstallable()
 			}
 			if !platformVariation {
-				mod.(ApexModule).apexModuleBase().ApexProperties.Info = apexVariations[i-1]
+				mctx.SetVariationProvider(mod, ApexInfoProvider, apexVariations[i-1])
 			}
 		}
 
@@ -423,116 +427,139 @@
 	return nil
 }
 
-var apexData OncePer
-var apexNamesMapMutex sync.Mutex
-var apexNamesKey = NewOnceKey("apexNames")
+// UpdateUniqueApexVariationsForDeps sets UniqueApexVariationsForDeps if any dependencies
+// that are in the same APEX have unique APEX variations so that the module can link against
+// the right variant.
+func UpdateUniqueApexVariationsForDeps(mctx BottomUpMutatorContext, am ApexModule) {
+	// anyInSameApex returns true if the two ApexInfo lists contain any values in an InApexes list
+	// in common.  It is used instead of DepIsInSameApex because it needs to determine if the dep
+	// is in the same APEX due to being directly included, not only if it is included _because_ it
+	// is a dependency.
+	anyInSameApex := func(a, b []ApexInfo) bool {
+		collectApexes := func(infos []ApexInfo) []string {
+			var ret []string
+			for _, info := range infos {
+				ret = append(ret, info.InApexes...)
+			}
+			return ret
+		}
 
-// This structure maintains the global mapping in between modules and APEXes.
-// Examples:
-//
-// apexNamesMap()["foo"]["bar"] == true: module foo is directly depended on by APEX bar
-// apexNamesMap()["foo"]["bar"] == false: module foo is indirectly depended on by APEX bar
-// apexNamesMap()["foo"]["bar"] doesn't exist: foo is not built for APEX bar
-func apexNamesMap() map[string]map[string]bool {
-	return apexData.Once(apexNamesKey, func() interface{} {
-		return make(map[string]map[string]bool)
-	}).(map[string]map[string]bool)
+		aApexes := collectApexes(a)
+		bApexes := collectApexes(b)
+		sort.Strings(bApexes)
+		for _, aApex := range aApexes {
+			index := sort.SearchStrings(bApexes, aApex)
+			if index < len(bApexes) && bApexes[index] == aApex {
+				return true
+			}
+		}
+		return false
+	}
+
+	mctx.VisitDirectDeps(func(dep Module) {
+		if depApexModule, ok := dep.(ApexModule); ok {
+			if anyInSameApex(depApexModule.apexModuleBase().apexVariations, am.apexModuleBase().apexVariations) &&
+				(depApexModule.UniqueApexVariations() ||
+					depApexModule.apexModuleBase().ApexProperties.UniqueApexVariationsForDeps) {
+				am.apexModuleBase().ApexProperties.UniqueApexVariationsForDeps = true
+			}
+		}
+	})
 }
 
-// Update the map to mark that a module named moduleName is directly or indirectly
-// depended on by the specified APEXes. Directly depending means that a module
-// is explicitly listed in the build definition of the APEX via properties like
-// native_shared_libs, java_libs, etc.
-func UpdateApexDependency(apex ApexInfo, moduleName string, directDep bool) {
-	apexNamesMapMutex.Lock()
-	defer apexNamesMapMutex.Unlock()
-	apexesForModule, ok := apexNamesMap()[moduleName]
-	if !ok {
-		apexesForModule = make(map[string]bool)
-		apexNamesMap()[moduleName] = apexesForModule
+// UpdateDirectlyInAnyApex uses the final module to store if any variant of this
+// module is directly in any APEX, and then copies the final value to all the modules.
+// It also copies the DirectlyInAnyApex value to any direct dependencies with a
+// CopyDirectlyInAnyApexTag dependency tag.
+func UpdateDirectlyInAnyApex(mctx BottomUpMutatorContext, am ApexModule) {
+	base := am.apexModuleBase()
+	// Copy DirectlyInAnyApex and InAnyApex from any direct dependencies with a
+	// CopyDirectlyInAnyApexTag dependency tag.
+	mctx.VisitDirectDeps(func(dep Module) {
+		if _, ok := mctx.OtherModuleDependencyTag(dep).(CopyDirectlyInAnyApexTag); ok {
+			depBase := dep.(ApexModule).apexModuleBase()
+			base.ApexProperties.DirectlyInAnyApex = depBase.ApexProperties.DirectlyInAnyApex
+			base.ApexProperties.InAnyApex = depBase.ApexProperties.InAnyApex
+		}
+	})
+
+	if base.ApexProperties.DirectlyInAnyApex {
+		// Variants of a module are always visited sequentially in order, so it is safe to
+		// write to another variant of this module.
+		// For a BottomUpMutator the PrimaryModule() is visited first and FinalModule() is
+		// visited last.
+		mctx.FinalModule().(ApexModule).apexModuleBase().ApexProperties.AnyVariantDirectlyInAnyApex = true
 	}
-	apexesForModule[apex.ApexVariationName] = apexesForModule[apex.ApexVariationName] || directDep
-	for _, apexName := range apex.InApexes {
-		apexesForModule[apexName] = apexesForModule[apex.ApexVariationName] || directDep
+
+	// If this is the FinalModule (last visited module) copy AnyVariantDirectlyInAnyApex to
+	// all the other variants
+	if am == mctx.FinalModule().(ApexModule) {
+		mctx.VisitAllModuleVariants(func(variant Module) {
+			variant.(ApexModule).apexModuleBase().ApexProperties.AnyVariantDirectlyInAnyApex =
+				base.ApexProperties.AnyVariantDirectlyInAnyApex
+		})
 	}
 }
 
-// TODO(b/146393795): remove this when b/146393795 is fixed
-func ClearApexDependency() {
-	m := apexNamesMap()
-	for k := range m {
-		delete(m, k)
+type ApexMembership int
+
+const (
+	notInApex        ApexMembership = 0
+	indirectlyInApex                = iota
+	directlyInApex
+)
+
+// Each apexBundle has an apexContents, and modules in that apex have a provider containing the
+// apexContents of each apexBundle they are part of.
+type ApexContents struct {
+	ApexName string
+	contents map[string]ApexMembership
+}
+
+func NewApexContents(name string, contents map[string]ApexMembership) *ApexContents {
+	return &ApexContents{
+		ApexName: name,
+		contents: contents,
 	}
 }
 
-// Tests whether a module named moduleName is directly depended on by an APEX
-// named apexName.
-func DirectlyInApex(apexName string, moduleName string) bool {
-	apexNamesMapMutex.Lock()
-	defer apexNamesMapMutex.Unlock()
-	if apexNamesForModule, ok := apexNamesMap()[moduleName]; ok {
-		return apexNamesForModule[apexName]
+func (i ApexMembership) Add(direct bool) ApexMembership {
+	if direct || i == directlyInApex {
+		return directlyInApex
 	}
-	return false
+	return indirectlyInApex
+}
+
+func (i ApexMembership) merge(other ApexMembership) ApexMembership {
+	if other == directlyInApex || i == directlyInApex {
+		return directlyInApex
+	}
+
+	if other == indirectlyInApex || i == indirectlyInApex {
+		return indirectlyInApex
+	}
+	return notInApex
+}
+
+func (ac *ApexContents) DirectlyInApex(name string) bool {
+	return ac.contents[name] == directlyInApex
+}
+
+func (ac *ApexContents) InApex(name string) bool {
+	return ac.contents[name] != notInApex
 }
 
 // Tests whether a module named moduleName is directly depended on by all APEXes
-// in a list of apexNames.
-func DirectlyInAllApexes(apexNames []string, moduleName string) bool {
-	apexNamesMapMutex.Lock()
-	defer apexNamesMapMutex.Unlock()
-	for _, apexName := range apexNames {
-		apexNamesForModule := apexNamesMap()[moduleName]
-		if !apexNamesForModule[apexName] {
+// in an ApexInfo.
+func DirectlyInAllApexes(apexInfo ApexInfo, moduleName string) bool {
+	for _, contents := range apexInfo.ApexContents {
+		if !contents.DirectlyInApex(moduleName) {
 			return false
 		}
 	}
 	return true
 }
 
-type hostContext interface {
-	Host() bool
-}
-
-// Tests whether a module named moduleName is directly depended on by any APEX.
-func DirectlyInAnyApex(ctx hostContext, moduleName string) bool {
-	if ctx.Host() {
-		// Host has no APEX.
-		return false
-	}
-	apexNamesMapMutex.Lock()
-	defer apexNamesMapMutex.Unlock()
-	if apexNames, ok := apexNamesMap()[moduleName]; ok {
-		for an := range apexNames {
-			if apexNames[an] {
-				return true
-			}
-		}
-	}
-	return false
-}
-
-// Tests whether a module named module is depended on (including both
-// direct and indirect dependencies) by any APEX.
-func InAnyApex(moduleName string) bool {
-	apexNamesMapMutex.Lock()
-	defer apexNamesMapMutex.Unlock()
-	apexNames, ok := apexNamesMap()[moduleName]
-	return ok && len(apexNames) > 0
-}
-
-func GetApexesForModule(moduleName string) []string {
-	ret := []string{}
-	apexNamesMapMutex.Lock()
-	defer apexNamesMapMutex.Unlock()
-	if apexNames, ok := apexNamesMap()[moduleName]; ok {
-		for an := range apexNames {
-			ret = append(ret, an)
-		}
-	}
-	return ret
-}
-
 func InitApexModule(m ApexModule) {
 	base := m.apexModuleBase()
 	base.canHaveApexVariants = true
diff --git a/android/apex_test.go b/android/apex_test.go
index dd372f7..7507628 100644
--- a/android/apex_test.go
+++ b/android/apex_test.go
@@ -20,6 +20,7 @@
 )
 
 func Test_mergeApexVariations(t *testing.T) {
+	t.Parallel()
 	tests := []struct {
 		name        string
 		in          []ApexInfo
@@ -29,10 +30,10 @@
 		{
 			name: "single",
 			in: []ApexInfo{
-				{"foo", "current", false, nil, []string{"foo"}},
+				{"foo", "current", false, nil, []string{"foo"}, nil},
 			},
 			wantMerged: []ApexInfo{
-				{"apex10000", "current", false, nil, []string{"foo"}},
+				{"apex10000", "current", false, nil, []string{"foo"}, nil},
 			},
 			wantAliases: [][2]string{
 				{"foo", "apex10000"},
@@ -41,12 +42,11 @@
 		{
 			name: "merge",
 			in: []ApexInfo{
-				{"foo", "current", false, SdkRefs{{"baz", "1"}}, []string{"foo"}},
-				{"bar", "current", false, SdkRefs{{"baz", "1"}}, []string{"bar"}},
+				{"foo", "current", false, SdkRefs{{"baz", "1"}}, []string{"foo"}, nil},
+				{"bar", "current", false, SdkRefs{{"baz", "1"}}, []string{"bar"}, nil},
 			},
 			wantMerged: []ApexInfo{
-				{"apex10000_baz_1", "current", false, SdkRefs{{"baz", "1"}}, []string{"bar", "foo"}},
-			},
+				{"apex10000_baz_1", "current", false, SdkRefs{{"baz", "1"}}, []string{"bar", "foo"}, nil}},
 			wantAliases: [][2]string{
 				{"bar", "apex10000_baz_1"},
 				{"foo", "apex10000_baz_1"},
@@ -55,12 +55,12 @@
 		{
 			name: "don't merge version",
 			in: []ApexInfo{
-				{"foo", "current", false, nil, []string{"foo"}},
-				{"bar", "30", false, nil, []string{"bar"}},
+				{"foo", "current", false, nil, []string{"foo"}, nil},
+				{"bar", "30", false, nil, []string{"bar"}, nil},
 			},
 			wantMerged: []ApexInfo{
-				{"apex30", "30", false, nil, []string{"bar"}},
-				{"apex10000", "current", false, nil, []string{"foo"}},
+				{"apex30", "30", false, nil, []string{"bar"}, nil},
+				{"apex10000", "current", false, nil, []string{"foo"}, nil},
 			},
 			wantAliases: [][2]string{
 				{"bar", "apex30"},
@@ -70,11 +70,11 @@
 		{
 			name: "merge updatable",
 			in: []ApexInfo{
-				{"foo", "current", false, nil, []string{"foo"}},
-				{"bar", "current", true, nil, []string{"bar"}},
+				{"foo", "current", false, nil, []string{"foo"}, nil},
+				{"bar", "current", true, nil, []string{"bar"}, nil},
 			},
 			wantMerged: []ApexInfo{
-				{"apex10000", "current", true, nil, []string{"bar", "foo"}},
+				{"apex10000", "current", true, nil, []string{"bar", "foo"}, nil},
 			},
 			wantAliases: [][2]string{
 				{"bar", "apex10000"},
@@ -84,12 +84,12 @@
 		{
 			name: "don't merge sdks",
 			in: []ApexInfo{
-				{"foo", "current", false, SdkRefs{{"baz", "1"}}, []string{"foo"}},
-				{"bar", "current", false, SdkRefs{{"baz", "2"}}, []string{"bar"}},
+				{"foo", "current", false, SdkRefs{{"baz", "1"}}, []string{"foo"}, nil},
+				{"bar", "current", false, SdkRefs{{"baz", "2"}}, []string{"bar"}, nil},
 			},
 			wantMerged: []ApexInfo{
-				{"apex10000_baz_2", "current", false, SdkRefs{{"baz", "2"}}, []string{"bar"}},
-				{"apex10000_baz_1", "current", false, SdkRefs{{"baz", "1"}}, []string{"foo"}},
+				{"apex10000_baz_2", "current", false, SdkRefs{{"baz", "2"}}, []string{"bar"}, nil},
+				{"apex10000_baz_1", "current", false, SdkRefs{{"baz", "1"}}, []string{"foo"}, nil},
 			},
 			wantAliases: [][2]string{
 				{"bar", "apex10000_baz_2"},
diff --git a/android/arch_test.go b/android/arch_test.go
index 8525b03..7ec050f 100644
--- a/android/arch_test.go
+++ b/android/arch_test.go
@@ -36,6 +36,7 @@
 }
 
 func TestFilterArchStruct(t *testing.T) {
+	t.Parallel()
 	tests := []struct {
 		name     string
 		in       interface{}
@@ -274,6 +275,7 @@
 }
 
 func TestArchMutator(t *testing.T) {
+	t.Parallel()
 	var buildOSVariants []string
 	var buildOS32Variants []string
 	switch runtime.GOOS {
@@ -385,6 +387,7 @@
 }
 
 func TestArchMutatorNativeBridge(t *testing.T) {
+	t.Parallel()
 	bp := `
 		// This module is only enabled for x86.
 		module {
diff --git a/android/config_test.go b/android/config_test.go
index 274d59f..0c907b7 100644
--- a/android/config_test.go
+++ b/android/config_test.go
@@ -58,6 +58,7 @@
 
 // tests that ValidateConfigAnnotation works
 func TestValidateConfigAnnotations(t *testing.T) {
+	t.Parallel()
 	config := configType{}
 	err := validateConfigAnnotations(&config)
 	expectedError := `Field configType.PopulateMe has tag json:"omitempty" which specifies to change its json field name to "omitempty".
@@ -74,6 +75,7 @@
 
 // run validateConfigAnnotations against each type that might have json annotations
 func TestProductConfigAnnotations(t *testing.T) {
+	t.Parallel()
 	err := validateConfigAnnotations(&productVariables{})
 	if err != nil {
 		t.Errorf(err.Error())
@@ -86,6 +88,7 @@
 }
 
 func TestMissingVendorConfig(t *testing.T) {
+	t.Parallel()
 	c := &config{}
 	if c.VendorConfig("test").Bool("not_set") {
 		t.Errorf("Expected false")
diff --git a/android/csuite_config_test.go b/android/csuite_config_test.go
index bf1a19a..ec93ed6 100644
--- a/android/csuite_config_test.go
+++ b/android/csuite_config_test.go
@@ -32,6 +32,7 @@
 }
 
 func TestCSuiteConfig(t *testing.T) {
+	t.Parallel()
 	ctx := testCSuiteConfig(t, `
 csuite_config { name: "plain"}
 csuite_config { name: "with_manifest", test_config: "manifest.xml" }
diff --git a/android/defaults_test.go b/android/defaults_test.go
index d096b2f..a6abe8f 100644
--- a/android/defaults_test.go
+++ b/android/defaults_test.go
@@ -59,6 +59,7 @@
 }
 
 func TestDefaults(t *testing.T) {
+	t.Parallel()
 	bp := `
 		defaults {
 			name: "transitive",
@@ -102,6 +103,7 @@
 }
 
 func TestDefaultsAllowMissingDependencies(t *testing.T) {
+	t.Parallel()
 	bp := `
 		defaults {
 			name: "defaults",
diff --git a/android/depset_test.go b/android/depset_test.go
index c328127..1ad27eb 100644
--- a/android/depset_test.go
+++ b/android/depset_test.go
@@ -64,6 +64,7 @@
 // Tests based on Bazel's ExpanderTestBase.java to ensure compatibility
 // https://github.com/bazelbuild/bazel/blob/master/src/test/java/com/google/devtools/build/lib/collect/nestedset/ExpanderTestBase.java
 func TestDepSet(t *testing.T) {
+	t.Parallel()
 	a := PathForTesting("a")
 	b := PathForTesting("b")
 	c := PathForTesting("c")
@@ -274,6 +275,7 @@
 }
 
 func TestDepSetInvalidOrder(t *testing.T) {
+	t.Parallel()
 	orders := []DepSetOrder{POSTORDER, PREORDER, TOPOLOGICAL}
 
 	run := func(t *testing.T, order1, order2 DepSetOrder) {
diff --git a/android/expand_test.go b/android/expand_test.go
index 12179ed..7992288 100644
--- a/android/expand_test.go
+++ b/android/expand_test.go
@@ -163,6 +163,7 @@
 }
 
 func TestExpand(t *testing.T) {
+	t.Parallel()
 	for _, test := range expandTestCases {
 		got, err := Expand(test.in, func(s string) (string, error) {
 			s, _, err := expander(s)
@@ -179,6 +180,7 @@
 }
 
 func TestExpandNinjaEscaped(t *testing.T) {
+	t.Parallel()
 	for _, test := range expandTestCases {
 		got, err := ExpandNinjaEscaped(test.in, expander)
 		if err != nil && !test.err {
diff --git a/android/module.go b/android/module.go
index c4e43c2..056b0a5 100644
--- a/android/module.go
+++ b/android/module.go
@@ -1499,8 +1499,8 @@
 	if !ctx.PrimaryArch() {
 		suffix = append(suffix, ctx.Arch().ArchType.String())
 	}
-	if apex, ok := m.module.(ApexModule); ok && !apex.IsForPlatform() {
-		suffix = append(suffix, apex.ApexVariationName())
+	if apexInfo := ctx.Provider(ApexInfoProvider).(ApexInfo); !apexInfo.IsForPlatform() {
+		suffix = append(suffix, apexInfo.ApexVariationName)
 	}
 
 	ctx.Variable(pctx, "moduleDesc", desc)
diff --git a/android/module_test.go b/android/module_test.go
index 6e648d7..b2a41e4 100644
--- a/android/module_test.go
+++ b/android/module_test.go
@@ -19,6 +19,7 @@
 )
 
 func TestSrcIsModule(t *testing.T) {
+	t.Parallel()
 	type args struct {
 		s string
 	}
@@ -66,6 +67,7 @@
 }
 
 func TestSrcIsModuleWithTag(t *testing.T) {
+	t.Parallel()
 	type args struct {
 		s string
 	}
@@ -164,6 +166,7 @@
 }
 
 func TestErrorDependsOnDisabledModule(t *testing.T) {
+	t.Parallel()
 	ctx := NewTestContext()
 	ctx.RegisterModuleType("deps", depsModuleFactory)
 
diff --git a/android/mutator_test.go b/android/mutator_test.go
index 191b535..ce073bfb 100644
--- a/android/mutator_test.go
+++ b/android/mutator_test.go
@@ -59,6 +59,7 @@
 }
 
 func TestMutatorAddMissingDependencies(t *testing.T) {
+	t.Parallel()
 	bp := `
 		test {
 			name: "foo",
@@ -92,6 +93,7 @@
 }
 
 func TestModuleString(t *testing.T) {
+	t.Parallel()
 	ctx := NewTestContext()
 
 	var moduleStrings []string
@@ -190,6 +192,7 @@
 }
 
 func TestFinalDepsPhase(t *testing.T) {
+	t.Parallel()
 	ctx := NewTestContext()
 
 	finalGot := map[string]int{}
@@ -267,6 +270,7 @@
 }
 
 func TestNoCreateVariationsInFinalDeps(t *testing.T) {
+	t.Parallel()
 	ctx := NewTestContext()
 
 	checkErr := func() {
diff --git a/android/namespace_test.go b/android/namespace_test.go
index 66c0d89..5cce3e4 100644
--- a/android/namespace_test.go
+++ b/android/namespace_test.go
@@ -24,6 +24,7 @@
 )
 
 func TestDependingOnModuleInSameNamespace(t *testing.T) {
+	t.Parallel()
 	ctx := setupTest(t,
 		map[string]string{
 			"dir1": `
@@ -48,6 +49,7 @@
 }
 
 func TestDependingOnModuleInRootNamespace(t *testing.T) {
+	t.Parallel()
 	ctx := setupTest(t,
 		map[string]string{
 			".": `
@@ -70,6 +72,7 @@
 }
 
 func TestImplicitlyImportRootNamespace(t *testing.T) {
+	t.Parallel()
 	_ = setupTest(t,
 		map[string]string{
 			".": `
@@ -92,6 +95,7 @@
 }
 
 func TestDependingOnBlueprintModuleInRootNamespace(t *testing.T) {
+	t.Parallel()
 	_ = setupTest(t,
 		map[string]string{
 			".": `
@@ -114,6 +118,7 @@
 }
 
 func TestDependingOnModuleInImportedNamespace(t *testing.T) {
+	t.Parallel()
 	ctx := setupTest(t,
 		map[string]string{
 			"dir1": `
@@ -143,6 +148,7 @@
 }
 
 func TestDependingOnModuleInNonImportedNamespace(t *testing.T) {
+	t.Parallel()
 	_, errs := setupTestExpectErrs(
 		map[string]string{
 			"dir1": `
@@ -183,6 +189,7 @@
 }
 
 func TestDependingOnModuleByFullyQualifiedReference(t *testing.T) {
+	t.Parallel()
 	ctx := setupTest(t,
 		map[string]string{
 			"dir1": `
@@ -210,6 +217,7 @@
 }
 
 func TestSameNameInTwoNamespaces(t *testing.T) {
+	t.Parallel()
 	ctx := setupTest(t,
 		map[string]string{
 			"dir1": `
@@ -260,6 +268,7 @@
 }
 
 func TestSearchOrder(t *testing.T) {
+	t.Parallel()
 	ctx := setupTest(t,
 		map[string]string{
 			"dir1": `
@@ -348,6 +357,7 @@
 }
 
 func TestTwoNamespacesCanImportEachOther(t *testing.T) {
+	t.Parallel()
 	_ = setupTest(t,
 		map[string]string{
 			"dir1": `
@@ -378,6 +388,7 @@
 }
 
 func TestImportingNonexistentNamespace(t *testing.T) {
+	t.Parallel()
 	_, errs := setupTestExpectErrs(
 		map[string]string{
 			"dir1": `
@@ -402,6 +413,7 @@
 }
 
 func TestNamespacesDontInheritParentNamespaces(t *testing.T) {
+	t.Parallel()
 	_, errs := setupTestExpectErrs(
 		map[string]string{
 			"dir1": `
@@ -433,6 +445,7 @@
 }
 
 func TestModulesDoReceiveParentNamespace(t *testing.T) {
+	t.Parallel()
 	_ = setupTest(t,
 		map[string]string{
 			"dir1": `
@@ -455,6 +468,7 @@
 }
 
 func TestNamespaceImportsNotTransitive(t *testing.T) {
+	t.Parallel()
 	_, errs := setupTestExpectErrs(
 		map[string]string{
 			"dir1": `
@@ -496,6 +510,7 @@
 }
 
 func TestTwoNamepacesInSameDir(t *testing.T) {
+	t.Parallel()
 	_, errs := setupTestExpectErrs(
 		map[string]string{
 			"dir1": `
@@ -516,6 +531,7 @@
 }
 
 func TestNamespaceNotAtTopOfFile(t *testing.T) {
+	t.Parallel()
 	_, errs := setupTestExpectErrs(
 		map[string]string{
 			"dir1": `
@@ -537,6 +553,7 @@
 }
 
 func TestTwoModulesWithSameNameInSameNamespace(t *testing.T) {
+	t.Parallel()
 	_, errs := setupTestExpectErrs(
 		map[string]string{
 			"dir1": `
@@ -562,6 +579,7 @@
 }
 
 func TestDeclaringNamespaceInNonAndroidBpFile(t *testing.T) {
+	t.Parallel()
 	_, errs := setupTestFromFiles(
 		map[string][]byte{
 			"Android.bp": []byte(`
@@ -585,6 +603,7 @@
 
 // so that the generated .ninja file will have consistent names
 func TestConsistentNamespaceNames(t *testing.T) {
+	t.Parallel()
 	ctx := setupTest(t,
 		map[string]string{
 			"dir1": "soong_namespace{}",
@@ -604,6 +623,7 @@
 
 // so that the generated .ninja file will have consistent names
 func TestRename(t *testing.T) {
+	t.Parallel()
 	_ = setupTest(t,
 		map[string]string{
 			"dir1": `
diff --git a/android/neverallow_test.go b/android/neverallow_test.go
index 56a07dc..306c509 100644
--- a/android/neverallow_test.go
+++ b/android/neverallow_test.go
@@ -343,6 +343,7 @@
 }
 
 func TestNeverallow(t *testing.T) {
+	t.Parallel()
 	for _, test := range neverallowTests {
 		// Create a test per config to allow for test specific config, e.g. test rules.
 		config := TestConfig(buildDir, nil, "", test.fs)
diff --git a/android/onceper_test.go b/android/onceper_test.go
index 1a55ff4..da0b10d 100644
--- a/android/onceper_test.go
+++ b/android/onceper_test.go
@@ -20,6 +20,7 @@
 )
 
 func TestOncePer_Once(t *testing.T) {
+	t.Parallel()
 	once := OncePer{}
 	key := NewOnceKey("key")
 
@@ -36,6 +37,7 @@
 }
 
 func TestOncePer_Once_wait(t *testing.T) {
+	t.Parallel()
 	once := OncePer{}
 	key := NewOnceKey("key")
 
@@ -51,6 +53,7 @@
 }
 
 func TestOncePer_Get(t *testing.T) {
+	t.Parallel()
 	once := OncePer{}
 	key := NewOnceKey("key")
 
@@ -67,6 +70,7 @@
 }
 
 func TestOncePer_Get_panic(t *testing.T) {
+	t.Parallel()
 	once := OncePer{}
 	key := NewOnceKey("key")
 
@@ -82,6 +86,7 @@
 }
 
 func TestOncePer_Get_wait(t *testing.T) {
+	t.Parallel()
 	once := OncePer{}
 	key := NewOnceKey("key")
 
@@ -97,6 +102,7 @@
 }
 
 func TestOncePer_OnceStringSlice(t *testing.T) {
+	t.Parallel()
 	once := OncePer{}
 	key := NewOnceKey("key")
 
@@ -113,6 +119,7 @@
 }
 
 func TestOncePer_Once2StringSlice(t *testing.T) {
+	t.Parallel()
 	once := OncePer{}
 	key := NewOnceKey("key")
 
@@ -129,6 +136,7 @@
 }
 
 func TestNewOnceKey(t *testing.T) {
+	t.Parallel()
 	once := OncePer{}
 	key1 := NewOnceKey("key")
 	key2 := NewOnceKey("key")
@@ -146,6 +154,7 @@
 }
 
 func TestNewCustomOnceKey(t *testing.T) {
+	t.Parallel()
 	type key struct {
 		key string
 	}
@@ -166,6 +175,7 @@
 }
 
 func TestOncePerReentrant(t *testing.T) {
+	t.Parallel()
 	once := OncePer{}
 	key1 := NewOnceKey("key")
 	key2 := NewOnceKey("key")
@@ -178,6 +188,7 @@
 
 // Test that a recovered panic in a Once function doesn't deadlock
 func TestOncePerPanic(t *testing.T) {
+	t.Parallel()
 	once := OncePer{}
 	key := NewOnceKey("key")
 
diff --git a/android/package_test.go b/android/package_test.go
index 04dfc08..a4b4c60 100644
--- a/android/package_test.go
+++ b/android/package_test.go
@@ -56,6 +56,7 @@
 }
 
 func TestPackage(t *testing.T) {
+	t.Parallel()
 	for _, test := range packageTests {
 		t.Run(test.name, func(t *testing.T) {
 			_, errs := testPackage(test.fs)
diff --git a/android/path_properties_test.go b/android/path_properties_test.go
index f367b82..9bbb571 100644
--- a/android/path_properties_test.go
+++ b/android/path_properties_test.go
@@ -59,6 +59,7 @@
 }
 
 func TestPathDepsMutator(t *testing.T) {
+	t.Parallel()
 	tests := []struct {
 		name string
 		bp   string
diff --git a/android/paths_test.go b/android/paths_test.go
index d099f65..03e1410 100644
--- a/android/paths_test.go
+++ b/android/paths_test.go
@@ -110,6 +110,7 @@
 }...)
 
 func TestValidateSafePath(t *testing.T) {
+	t.Parallel()
 	for _, testCase := range validateSafePathTestCases {
 		t.Run(strings.Join(testCase.in, ","), func(t *testing.T) {
 			ctx := &configErrorWrapper{}
@@ -123,6 +124,7 @@
 }
 
 func TestValidatePath(t *testing.T) {
+	t.Parallel()
 	for _, testCase := range validatePathTestCases {
 		t.Run(strings.Join(testCase.in, ","), func(t *testing.T) {
 			ctx := &configErrorWrapper{}
@@ -136,6 +138,7 @@
 }
 
 func TestOptionalPath(t *testing.T) {
+	t.Parallel()
 	var path OptionalPath
 	checkInvalidOptionalPath(t, path)
 
@@ -253,6 +256,7 @@
 }
 
 func TestPathForModuleInstall(t *testing.T) {
+	t.Parallel()
 	testConfig := pathTestConfig("")
 
 	hostTarget := Target{Os: Linux, Arch: Arch{ArchType: X86}}
@@ -657,6 +661,7 @@
 }
 
 func TestDirectorySortedPaths(t *testing.T) {
+	t.Parallel()
 	config := TestConfig("out", nil, "", map[string][]byte{
 		"Android.bp": nil,
 		"a.txt":      nil,
@@ -739,6 +744,7 @@
 }
 
 func TestMaybeRel(t *testing.T) {
+	t.Parallel()
 	testCases := []struct {
 		name   string
 		base   string
@@ -796,6 +802,7 @@
 }
 
 func TestPathForSource(t *testing.T) {
+	t.Parallel()
 	testCases := []struct {
 		name     string
 		buildDir string
@@ -1028,6 +1035,7 @@
 }
 
 func TestPathsForModuleSrc(t *testing.T) {
+	t.Parallel()
 	tests := []pathForModuleSrcTestCase{
 		{
 			name: "path",
@@ -1123,6 +1131,7 @@
 }
 
 func TestPathForModuleSrc(t *testing.T) {
+	t.Parallel()
 	tests := []pathForModuleSrcTestCase{
 		{
 			name: "path",
@@ -1190,6 +1199,7 @@
 }
 
 func TestPathsForModuleSrc_AllowMissingDependencies(t *testing.T) {
+	t.Parallel()
 	bp := `
 		test {
 			name: "foo",
diff --git a/android/prebuilt_test.go b/android/prebuilt_test.go
index 854395e..40fced8 100644
--- a/android/prebuilt_test.go
+++ b/android/prebuilt_test.go
@@ -262,6 +262,7 @@
 }
 
 func TestPrebuilts(t *testing.T) {
+	t.Parallel()
 	fs := map[string][]byte{
 		"prebuilt_file": nil,
 		"source_file":   nil,
diff --git a/android/rule_builder_test.go b/android/rule_builder_test.go
index c41b067..d205a5b 100644
--- a/android/rule_builder_test.go
+++ b/android/rule_builder_test.go
@@ -264,6 +264,7 @@
 }
 
 func TestRuleBuilder(t *testing.T) {
+	t.Parallel()
 	fs := map[string][]byte{
 		"dep_fixer":  nil,
 		"input":      nil,
@@ -455,6 +456,7 @@
 }
 
 func TestRuleBuilder_Build(t *testing.T) {
+	t.Parallel()
 	fs := map[string][]byte{
 		"bar": nil,
 		"cp":  nil,
@@ -546,6 +548,7 @@
 }
 
 func Test_ninjaEscapeExceptForSpans(t *testing.T) {
+	t.Parallel()
 	type args struct {
 		s     string
 		spans [][2]int
diff --git a/android/soong_config_modules_test.go b/android/soong_config_modules_test.go
index f905b1a..f0f1462 100644
--- a/android/soong_config_modules_test.go
+++ b/android/soong_config_modules_test.go
@@ -38,6 +38,7 @@
 func (t soongConfigTestModule) GenerateAndroidBuildActions(ModuleContext) {}
 
 func TestSoongConfigModule(t *testing.T) {
+	t.Parallel()
 	configBp := `
 		soong_config_module_type {
 			name: "acme_test_defaults",
diff --git a/android/soongconfig/modules_test.go b/android/soongconfig/modules_test.go
index 4190016..ff4883e 100644
--- a/android/soongconfig/modules_test.go
+++ b/android/soongconfig/modules_test.go
@@ -20,6 +20,7 @@
 )
 
 func Test_CanonicalizeToProperty(t *testing.T) {
+	t.Parallel()
 	tests := []struct {
 		name string
 		arg  string
@@ -66,6 +67,7 @@
 }
 
 func Test_typeForPropertyFromPropertyStruct(t *testing.T) {
+	t.Parallel()
 	tests := []struct {
 		name     string
 		ps       interface{}
@@ -186,6 +188,7 @@
 }
 
 func Test_createAffectablePropertiesType(t *testing.T) {
+	t.Parallel()
 	tests := []struct {
 		name                 string
 		affectableProperties []string
diff --git a/android/util_test.go b/android/util_test.go
index 25b52ca..8c42157 100644
--- a/android/util_test.go
+++ b/android/util_test.go
@@ -60,6 +60,7 @@
 }
 
 func TestFirstUniqueStrings(t *testing.T) {
+	t.Parallel()
 	f := func(t *testing.T, imp func([]string) []string, in, want []string) {
 		t.Helper()
 		out := imp(in)
@@ -120,6 +121,7 @@
 }
 
 func TestLastUniqueStrings(t *testing.T) {
+	t.Parallel()
 	for _, testCase := range lastUniqueStringsTestCases {
 		out := LastUniqueStrings(testCase.in)
 		if !reflect.DeepEqual(out, testCase.out) {
@@ -132,6 +134,7 @@
 }
 
 func TestJoinWithPrefix(t *testing.T) {
+	t.Parallel()
 	testcases := []struct {
 		name     string
 		input    []string
@@ -171,6 +174,7 @@
 }
 
 func TestIndexList(t *testing.T) {
+	t.Parallel()
 	input := []string{"a", "b", "c"}
 
 	testcases := []struct {
@@ -210,6 +214,7 @@
 }
 
 func TestInList(t *testing.T) {
+	t.Parallel()
 	input := []string{"a"}
 
 	testcases := []struct {
@@ -241,6 +246,7 @@
 }
 
 func TestPrefixInList(t *testing.T) {
+	t.Parallel()
 	prefixes := []string{"a", "b"}
 
 	testcases := []struct {
@@ -276,6 +282,7 @@
 }
 
 func TestFilterList(t *testing.T) {
+	t.Parallel()
 	input := []string{"a", "b", "c", "c", "b", "d", "a"}
 	filter := []string{"a", "c"}
 	remainder, filtered := FilterList(input, filter)
@@ -300,6 +307,7 @@
 }
 
 func TestRemoveListFromList(t *testing.T) {
+	t.Parallel()
 	input := []string{"a", "b", "c", "d", "a", "c", "d"}
 	filter := []string{"a", "c"}
 	expected := []string{"b", "d", "d"}
@@ -314,6 +322,7 @@
 }
 
 func TestRemoveFromList(t *testing.T) {
+	t.Parallel()
 	testcases := []struct {
 		name          string
 		key           string
@@ -417,6 +426,7 @@
 }
 
 func TestSplitFileExt(t *testing.T) {
+	t.Parallel()
 	t.Run("soname with version", func(t *testing.T) {
 		root, suffix, ext := SplitFileExt("libtest.so.1.0.30")
 		expected := "libtest"
@@ -482,6 +492,7 @@
 }
 
 func Test_Shard(t *testing.T) {
+	t.Parallel()
 	type args struct {
 		strings   []string
 		shardSize int
diff --git a/android/variable_test.go b/android/variable_test.go
index 9cafedd..9348b0d 100644
--- a/android/variable_test.go
+++ b/android/variable_test.go
@@ -112,6 +112,7 @@
 }
 
 func TestPrintfIntoProperty(t *testing.T) {
+	t.Parallel()
 	for _, testCase := range printfIntoPropertyTestCases {
 		s := testCase.in
 		v := reflect.ValueOf(&s).Elem()
@@ -157,6 +158,7 @@
 }
 
 func TestProductVariables(t *testing.T) {
+	t.Parallel()
 	ctx := NewTestContext()
 	// A module type that has a srcs property but not a cflags property.
 	ctx.RegisterModuleType("module1", testProductVariableModuleFactoryFactory(&struct {
@@ -265,6 +267,7 @@
 
 // Test a defaults module that supports more product variable properties than the target module.
 func TestProductVariablesDefaults(t *testing.T) {
+	t.Parallel()
 	bp := `
 		defaults {
 			name: "defaults",
diff --git a/android/visibility_test.go b/android/visibility_test.go
index 9d9e574..8de5fa9 100644
--- a/android/visibility_test.go
+++ b/android/visibility_test.go
@@ -1140,6 +1140,7 @@
 }
 
 func TestVisibility(t *testing.T) {
+	t.Parallel()
 	for _, test := range visibilityTests {
 		t.Run(test.name, func(t *testing.T) {
 			ctx, errs := testVisibility(buildDir, test.fs)
diff --git a/android/vts_config_test.go b/android/vts_config_test.go
index 254fa92..a95e589 100644
--- a/android/vts_config_test.go
+++ b/android/vts_config_test.go
@@ -32,6 +32,7 @@
 }
 
 func TestVtsConfig(t *testing.T) {
+	t.Parallel()
 	ctx := testVtsConfig(t, `
 vts_config { name: "plain"}
 vts_config { name: "with_manifest", test_config: "manifest.xml" }
diff --git a/androidmk/androidmk/androidmk_test.go b/androidmk/androidmk/androidmk_test.go
index 2448acc..560ea13 100644
--- a/androidmk/androidmk/androidmk_test.go
+++ b/androidmk/androidmk/androidmk_test.go
@@ -1462,6 +1462,7 @@
 }
 
 func TestEndToEnd(t *testing.T) {
+	t.Parallel()
 	for i, test := range testCases {
 		expected, err := bpfix.Reformat(test.expected)
 		if err != nil {
diff --git a/androidmk/parser/make_strings_test.go b/androidmk/parser/make_strings_test.go
index 6995e89..9622068 100644
--- a/androidmk/parser/make_strings_test.go
+++ b/androidmk/parser/make_strings_test.go
@@ -89,6 +89,7 @@
 }
 
 func TestMakeStringSplitN(t *testing.T) {
+	t.Parallel()
 	for _, test := range splitNTestCases {
 		got := test.in.SplitN(test.sep, test.n)
 		gotString := dumpArray(got)
@@ -118,6 +119,7 @@
 }
 
 func TestMakeStringValue(t *testing.T) {
+	t.Parallel()
 	for _, test := range valueTestCases {
 		got := test.in.Value(nil)
 		if got != test.expected {
@@ -161,6 +163,7 @@
 }
 
 func TestMakeStringWords(t *testing.T) {
+	t.Parallel()
 	for _, test := range splitWordsTestCases {
 		got := test.in.Words()
 		gotString := dumpArray(got)
diff --git a/androidmk/parser/parser_test.go b/androidmk/parser/parser_test.go
index f562c29..7c05a0c 100644
--- a/androidmk/parser/parser_test.go
+++ b/androidmk/parser/parser_test.go
@@ -37,6 +37,7 @@
 }
 
 func TestParse(t *testing.T) {
+	t.Parallel()
 	for _, test := range parserTestCases {
 		t.Run(test.name, func(t *testing.T) {
 			p := NewParser(test.name, bytes.NewBufferString(test.in))
diff --git a/apex/apex.go b/apex/apex.go
index a5b228c..a9a58a6 100644
--- a/apex/apex.go
+++ b/apex/apex.go
@@ -67,6 +67,7 @@
 	androidAppTag  = dependencyTag{name: "androidApp", payload: true}
 	rroTag         = dependencyTag{name: "rro", payload: true}
 	bpfTag         = dependencyTag{name: "bpf", payload: true}
+	testForTag     = dependencyTag{name: "test for"}
 
 	apexAvailBaseline = makeApexAvailableBaseline()
 
@@ -769,7 +770,10 @@
 func RegisterPostDepsMutators(ctx android.RegisterMutatorsContext) {
 	ctx.TopDown("apex_deps", apexDepsMutator).Parallel()
 	ctx.BottomUp("apex_unique", apexUniqueVariationsMutator).Parallel()
+	ctx.BottomUp("apex_test_for_deps", apexTestForDepsMutator).Parallel()
+	ctx.BottomUp("apex_test_for", apexTestForMutator).Parallel()
 	ctx.BottomUp("apex", apexMutator).Parallel()
+	ctx.BottomUp("apex_directly_in_any", apexDirectlyInAnyMutator).Parallel()
 	ctx.BottomUp("apex_flattened", apexFlattenedMutator).Parallel()
 	ctx.BottomUp("apex_uses", apexUsesMutator).Parallel()
 	ctx.BottomUp("mark_platform_availability", markPlatformAvailability).Parallel()
@@ -785,13 +789,6 @@
 	if !ok || a.vndkApex {
 		return
 	}
-	apexInfo := android.ApexInfo{
-		ApexVariationName: mctx.ModuleName(),
-		MinSdkVersionStr:  a.minSdkVersion(mctx).String(),
-		RequiredSdks:      a.RequiredSdks(),
-		Updatable:         a.Updatable(),
-		InApexes:          []string{mctx.ModuleName()},
-	}
 
 	useVndk := a.SocSpecific() || a.DeviceSpecific() || (a.ProductSpecific() && mctx.Config().EnforceProductPartitionInterface())
 	excludeVndkLibs := useVndk && proptools.Bool(a.properties.Use_vndk_as_stable)
@@ -800,7 +797,9 @@
 		return
 	}
 
-	mctx.WalkDeps(func(child, parent android.Module) bool {
+	contents := make(map[string]android.ApexMembership)
+
+	continueApexDepsWalk := func(child, parent android.Module) bool {
 		am, ok := child.(android.ApexModule)
 		if !ok || !am.CanHaveApexVariants() {
 			return false
@@ -813,12 +812,41 @@
 				return false
 			}
 		}
+		return true
+	}
+
+	mctx.WalkDeps(func(child, parent android.Module) bool {
+		if !continueApexDepsWalk(child, parent) {
+			return false
+		}
 
 		depName := mctx.OtherModuleName(child)
 		// If the parent is apexBundle, this child is directly depended.
 		_, directDep := parent.(*apexBundle)
-		android.UpdateApexDependency(apexInfo, depName, directDep)
-		am.BuildForApex(apexInfo)
+		contents[depName] = contents[depName].Add(directDep)
+		return true
+	})
+
+	apexContents := android.NewApexContents(mctx.ModuleName(), contents)
+	mctx.SetProvider(ApexBundleInfoProvider, ApexBundleInfo{
+		Contents: apexContents,
+	})
+
+	apexInfo := android.ApexInfo{
+		ApexVariationName: mctx.ModuleName(),
+		MinSdkVersionStr:  a.minSdkVersion(mctx).String(),
+		RequiredSdks:      a.RequiredSdks(),
+		Updatable:         a.Updatable(),
+		InApexes:          []string{mctx.ModuleName()},
+		ApexContents:      []*android.ApexContents{apexContents},
+	}
+
+	mctx.WalkDeps(func(child, parent android.Module) bool {
+		if !continueApexDepsWalk(child, parent) {
+			return false
+		}
+
+		child.(android.ApexModule).BuildForApex(apexInfo)
 		return true
 	})
 }
@@ -830,7 +858,40 @@
 	if am, ok := mctx.Module().(android.ApexModule); ok {
 		// Check if any dependencies use unique apex variations.  If so, use unique apex variations
 		// for this module.
-		am.UpdateUniqueApexVariationsForDeps(mctx)
+		android.UpdateUniqueApexVariationsForDeps(mctx, am)
+	}
+}
+
+func apexTestForDepsMutator(mctx android.BottomUpMutatorContext) {
+	if !mctx.Module().Enabled() {
+		return
+	}
+	// Check if this module is a test for an apex.  If so, add a dependency on the apex
+	// in order to retrieve its contents later.
+	if am, ok := mctx.Module().(android.ApexModule); ok {
+		if testFor := am.TestFor(); len(testFor) > 0 {
+			mctx.AddFarVariationDependencies([]blueprint.Variation{
+				{Mutator: "os", Variation: am.Target().OsVariation()},
+				{"arch", "common"},
+			}, testForTag, testFor...)
+		}
+	}
+}
+
+func apexTestForMutator(mctx android.BottomUpMutatorContext) {
+	if !mctx.Module().Enabled() {
+		return
+	}
+
+	if _, ok := mctx.Module().(android.ApexModule); ok {
+		var contents []*android.ApexContents
+		for _, testFor := range mctx.GetDirectDepsWithTag(testForTag) {
+			abInfo := mctx.OtherModuleProvider(testFor, ApexBundleInfoProvider).(ApexBundleInfo)
+			contents = append(contents, abInfo.Contents)
+		}
+		mctx.SetProvider(android.ApexTestForInfoProvider, android.ApexTestForInfo{
+			ApexContents: contents,
+		})
 	}
 }
 
@@ -891,8 +952,9 @@
 	if !mctx.Module().Enabled() {
 		return
 	}
+
 	if am, ok := mctx.Module().(android.ApexModule); ok && am.CanHaveApexVariants() {
-		am.CreateApexVariations(mctx)
+		android.CreateApexVariations(mctx, am)
 	} else if a, ok := mctx.Module().(*apexBundle); ok && !a.vndkApex {
 		// apex bundle itself is mutated so that it and its modules have same
 		// apex variant.
@@ -909,6 +971,15 @@
 
 }
 
+func apexDirectlyInAnyMutator(mctx android.BottomUpMutatorContext) {
+	if !mctx.Module().Enabled() {
+		return
+	}
+	if am, ok := mctx.Module().(android.ApexModule); ok {
+		android.UpdateDirectlyInAnyApex(mctx, am)
+	}
+}
+
 func apexFlattenedMutator(mctx android.BottomUpMutatorContext) {
 	if !mctx.Module().Enabled() {
 		return
@@ -1118,6 +1189,12 @@
 	Payload_fs_type *string
 }
 
+type ApexBundleInfo struct {
+	Contents *android.ApexContents
+}
+
+var ApexBundleInfoProvider = blueprint.NewMutatorProvider(ApexBundleInfo{}, "apex_deps")
+
 type apexTargetBundleProperties struct {
 	Target struct {
 		// Multilib properties only for android.
@@ -1908,6 +1985,8 @@
 			return false
 		}
 
+		childApexInfo := ctx.OtherModuleProvider(child, android.ApexInfoProvider).(android.ApexInfo)
+
 		dt := ctx.OtherModuleDependencyTag(child)
 
 		if _, ok := dt.(android.ExcludeFromApexContentsTag); ok {
@@ -1924,7 +2003,7 @@
 		}
 
 		// Check for the indirect dependencies if it is considered as part of the APEX
-		if android.InList(ctx.ModuleName(), am.InApexes()) {
+		if android.InList(ctx.ModuleName(), childApexInfo.InApexes) {
 			return do(ctx, parent, am, false /* externalDep */)
 		}
 
@@ -2032,6 +2111,8 @@
 		return
 	}
 
+	abInfo := ctx.Provider(ApexBundleInfoProvider).(ApexBundleInfo)
+
 	a.WalkPayloadDeps(ctx, func(ctx android.ModuleContext, from blueprint.Module, to android.ApexModule, externalDep bool) bool {
 		if ccm, ok := to.(*cc.Module); ok {
 			apexName := ctx.ModuleName()
@@ -2052,7 +2133,7 @@
 				return false
 			}
 
-			isStubLibraryFromOtherApex := ccm.HasStubsVariants() && !android.DirectlyInApex(apexName, toName)
+			isStubLibraryFromOtherApex := ccm.HasStubsVariants() && !abInfo.Contents.DirectlyInApex(toName)
 			if isStubLibraryFromOtherApex && !externalDep {
 				ctx.ModuleErrorf("%q required by %q is a native library providing stub. "+
 					"It shouldn't be included in this APEX via static linking. Dependency path: %s", to.String(), fromName, ctx.GetPathString(false))
@@ -2291,7 +2372,8 @@
 						}
 						af := apexFileForNativeLibrary(ctx, cc, handleSpecialLibs)
 						af.transitiveDep = true
-						if !a.Host() && !android.DirectlyInApex(ctx.ModuleName(), depName) && (cc.IsStubs() || cc.HasStubsVariants()) {
+						abInfo := ctx.Provider(ApexBundleInfoProvider).(ApexBundleInfo)
+						if !a.Host() && !abInfo.Contents.DirectlyInApex(depName) && (cc.IsStubs() || cc.HasStubsVariants()) {
 							// If the dependency is a stubs lib, don't include it in this APEX,
 							// but make sure that the lib is installed on the device.
 							// In case no APEX is having the lib, the lib is installed to the system
@@ -2299,7 +2381,7 @@
 							//
 							// Always include if we are a host-apex however since those won't have any
 							// system libraries.
-							if !android.DirectlyInAnyApex(ctx, depName) {
+							if !am.DirectlyInAnyApex() {
 								// we need a module name for Make
 								name := cc.BaseModuleName() + cc.Properties.SubName
 								if proptools.Bool(a.properties.Use_vendor) {
@@ -2338,6 +2420,8 @@
 					if prebuilt, ok := child.(prebuilt_etc.PrebuiltEtcModule); ok {
 						filesInfo = append(filesInfo, apexFileForPrebuiltEtc(ctx, prebuilt, depName))
 					}
+				} else if _, ok := depTag.(android.CopyDirectlyInAnyApexTag); ok {
+					// nothing
 				} else if am.CanHaveApexVariants() && am.IsInstallableToApex() {
 					ctx.ModuleErrorf("unexpected tag %s for indirect dependency %q", android.PrettyPrintTag(depTag), depName)
 				}
diff --git a/apex/apex_singleton.go b/apex/apex_singleton.go
index afb739c..803e0c5 100644
--- a/apex/apex_singleton.go
+++ b/apex/apex_singleton.go
@@ -72,8 +72,11 @@
 	updatableFlatLists := android.Paths{}
 	ctx.VisitAllModules(func(module android.Module) {
 		if binaryInfo, ok := module.(android.ApexBundleDepsInfoIntf); ok {
-			if path := binaryInfo.FlatListPath(); path != nil && binaryInfo.Updatable() {
-				updatableFlatLists = append(updatableFlatLists, path)
+			apexInfo := ctx.ModuleProvider(module, android.ApexInfoProvider).(android.ApexInfo)
+			if path := binaryInfo.FlatListPath(); path != nil {
+				if binaryInfo.Updatable() || apexInfo.Updatable {
+					updatableFlatLists = append(updatableFlatLists, path)
+				}
 			}
 		}
 	})
diff --git a/apex/apex_test.go b/apex/apex_test.go
index 71c4aa2..5a9a3b1 100644
--- a/apex/apex_test.go
+++ b/apex/apex_test.go
@@ -125,8 +125,6 @@
 }
 
 func testApexContext(_ *testing.T, bp string, handlers ...testCustomizer) (*android.TestContext, android.Config) {
-	android.ClearApexDependency()
-
 	bp = bp + `
 		filegroup {
 			name: "myapex-file_contexts",
@@ -347,6 +345,7 @@
 
 // Minimal test
 func TestBasicApex(t *testing.T) {
+	t.Parallel()
 	ctx, config := testApex(t, `
 		apex_defaults {
 			name: "myapex-defaults",
@@ -599,6 +598,7 @@
 }
 
 func TestDefaults(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testApex(t, `
 		apex_defaults {
 			name: "myapex-defaults",
@@ -673,6 +673,7 @@
 }
 
 func TestApexManifest(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testApex(t, `
 		apex {
 			name: "myapex",
@@ -694,6 +695,7 @@
 }
 
 func TestBasicZipApex(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testApex(t, `
 		apex {
 			name: "myapex",
@@ -744,6 +746,7 @@
 }
 
 func TestApexWithStubs(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testApex(t, `
 		apex {
 			name: "myapex",
@@ -936,6 +939,7 @@
 }
 
 func TestApexWithExplicitStubsDependency(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testApex(t, `
 		apex {
 			name: "myapex2",
@@ -1023,6 +1027,7 @@
 }
 
 func TestApexWithRuntimeLibsDependency(t *testing.T) {
+	t.Parallel()
 	/*
 		myapex
 		  |
@@ -1092,6 +1097,7 @@
 }
 
 func TestRuntimeApexShouldInstallHwasanIfLibcDependsOnIt(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testApex(t, "", func(fs map[string][]byte, config android.Config) {
 		bp := `
 		apex {
@@ -1155,6 +1161,7 @@
 }
 
 func TestRuntimeApexShouldInstallHwasanIfHwaddressSanitized(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testApex(t, "", func(fs map[string][]byte, config android.Config) {
 		bp := `
 		apex {
@@ -1216,6 +1223,7 @@
 }
 
 func TestApexDependsOnLLNDKTransitively(t *testing.T) {
+	t.Parallel()
 	testcases := []struct {
 		name          string
 		minSdkVersion string
@@ -1305,6 +1313,7 @@
 }
 
 func TestApexWithSystemLibsStubs(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testApex(t, `
 		apex {
 			name: "myapex",
@@ -1395,6 +1404,7 @@
 }
 
 func TestApexMinSdkVersion_NativeModulesShouldBeBuiltAgainstStubs(t *testing.T) {
+	t.Parallel()
 	// there are three links between liba --> libz
 	// 1) myapex -> libx -> liba -> libz    : this should be #29 link, but fallback to #28
 	// 2) otherapex -> liby -> liba -> libz : this should be #30 link
@@ -1481,6 +1491,7 @@
 }
 
 func TestApexMinSdkVersion_SupportsCodeNames(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testApex(t, `
 		apex {
 			name: "myapex",
@@ -1530,6 +1541,7 @@
 }
 
 func TestApexMinSdkVersion_DefaultsToLatest(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testApex(t, `
 		apex {
 			name: "myapex",
@@ -1575,6 +1587,7 @@
 }
 
 func TestPlatformUsesLatestStubsFromApexes(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testApex(t, `
 		apex {
 			name: "myapex",
@@ -1607,10 +1620,12 @@
 	`)
 
 	expectLink := func(from, from_variant, to, to_variant string) {
+		t.Helper()
 		ldArgs := ctx.ModuleForTests(from, "android_arm64_armv8-a_"+from_variant).Rule("ld").Args["libFlags"]
 		ensureContains(t, ldArgs, "android_arm64_armv8-a_"+to_variant+"/"+to+".so")
 	}
 	expectNoLink := func(from, from_variant, to, to_variant string) {
+		t.Helper()
 		ldArgs := ctx.ModuleForTests(from, "android_arm64_armv8-a_"+from_variant).Rule("ld").Args["libFlags"]
 		ensureNotContains(t, ldArgs, "android_arm64_armv8-a_"+to_variant+"/"+to+".so")
 	}
@@ -1620,6 +1635,7 @@
 }
 
 func TestQApexesUseLatestStubsInBundledBuildsAndHWASAN(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testApex(t, `
 		apex {
 			name: "myapex",
@@ -1659,6 +1675,7 @@
 }
 
 func TestQTargetApexUsesStaticUnwinder(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testApex(t, `
 		apex {
 			name: "myapex",
@@ -1689,6 +1706,7 @@
 }
 
 func TestApexMinSdkVersion_ErrorIfIncompatibleStubs(t *testing.T) {
+	t.Parallel()
 	testApexError(t, `"libz" .*: not found a version\(<=29\)`, `
 		apex {
 			name: "myapex",
@@ -1724,6 +1742,7 @@
 }
 
 func TestApexMinSdkVersion_ErrorIfIncompatibleVersion(t *testing.T) {
+	t.Parallel()
 	testApexError(t, `module "mylib".*: should support min_sdk_version\(29\)`, `
 		apex {
 			name: "myapex",
@@ -1752,6 +1771,7 @@
 }
 
 func TestApexMinSdkVersion_Okay(t *testing.T) {
+	t.Parallel()
 	testApex(t, `
 		apex {
 			name: "myapex",
@@ -1802,6 +1822,7 @@
 }
 
 func TestJavaStableSdkVersion(t *testing.T) {
+	t.Parallel()
 	testCases := []struct {
 		name          string
 		expectedError string
@@ -1919,6 +1940,7 @@
 }
 
 func TestApexMinSdkVersion_ErrorIfDepIsNewer(t *testing.T) {
+	t.Parallel()
 	testApexError(t, `module "mylib2".*: should support min_sdk_version\(29\) for "myapex"`, `
 		apex {
 			name: "myapex",
@@ -1960,6 +1982,7 @@
 }
 
 func TestApexMinSdkVersion_ErrorIfDepIsNewer_Java(t *testing.T) {
+	t.Parallel()
 	testApexError(t, `module "bar".*: should support min_sdk_version\(29\) for "myapex"`, `
 		apex {
 			name: "myapex",
@@ -1995,6 +2018,7 @@
 }
 
 func TestApexMinSdkVersion_OkayEvenWhenDepIsNewer_IfItSatisfiesApexMinSdkVersion(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testApex(t, `
 		apex {
 			name: "myapex",
@@ -2048,6 +2072,7 @@
 }
 
 func TestFilesInSubDir(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testApex(t, `
 		apex {
 			name: "myapex",
@@ -2110,6 +2135,7 @@
 }
 
 func TestFilesInSubDirWhenNativeBridgeEnabled(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testApex(t, `
 		apex {
 			name: "myapex",
@@ -2168,6 +2194,7 @@
 }
 
 func TestUseVendor(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testApex(t, `
 		apex {
 			name: "myapex",
@@ -2222,6 +2249,7 @@
 }
 
 func TestUseVendorNotAllowedForSystemApexes(t *testing.T) {
+	t.Parallel()
 	testApexError(t, `module "myapex" .*: use_vendor: not allowed`, `
 		apex {
 			name: "myapex",
@@ -2254,6 +2282,7 @@
 }
 
 func TestUseVendorFailsIfNotVendorAvailable(t *testing.T) {
+	t.Parallel()
 	testApexError(t, `dependency "mylib" of "myapex" missing variant:\n.*image:vendor`, `
 		apex {
 			name: "myapex",
@@ -2278,6 +2307,7 @@
 }
 
 func TestVendorApex(t *testing.T) {
+	t.Parallel()
 	ctx, config := testApex(t, `
 		apex {
 			name: "myapex",
@@ -2323,6 +2353,7 @@
 }
 
 func TestVendorApex_use_vndk_as_stable(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testApex(t, `
 		apex {
 			name: "myapex",
@@ -2376,6 +2407,7 @@
 }
 
 func TestApex_withPrebuiltFirmware(t *testing.T) {
+	t.Parallel()
 	testCases := []struct {
 		name           string
 		additionalProp string
@@ -2412,6 +2444,7 @@
 }
 
 func TestAndroidMk_UseVendorRequired(t *testing.T) {
+	t.Parallel()
 	ctx, config := testApex(t, `
 		apex {
 			name: "myapex",
@@ -2446,6 +2479,7 @@
 }
 
 func TestAndroidMk_VendorApexRequired(t *testing.T) {
+	t.Parallel()
 	ctx, config := testApex(t, `
 		apex {
 			name: "myapex",
@@ -2477,6 +2511,7 @@
 }
 
 func TestAndroidMkWritesCommonProperties(t *testing.T) {
+	t.Parallel()
 	ctx, config := testApex(t, `
 		apex {
 			name: "myapex",
@@ -2506,6 +2541,7 @@
 }
 
 func TestStaticLinking(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testApex(t, `
 		apex {
 			name: "myapex",
@@ -2550,6 +2586,7 @@
 }
 
 func TestKeys(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testApex(t, `
 		apex {
 			name: "myapex_keytest",
@@ -2606,6 +2643,7 @@
 }
 
 func TestCertificate(t *testing.T) {
+	t.Parallel()
 	t.Run("if unspecified, it defaults to DefaultAppCertificate", func(t *testing.T) {
 		ctx, _ := testApex(t, `
 			apex {
@@ -2734,6 +2772,7 @@
 }
 
 func TestMacro(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testApex(t, `
 		apex {
 			name: "myapex",
@@ -2861,6 +2900,7 @@
 }
 
 func TestHeaderLibsDependency(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testApex(t, `
 		apex {
 			name: "myapex",
@@ -3004,6 +3044,7 @@
 }
 
 func TestVndkApexCurrent(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testApex(t, `
 		apex_vndk {
 			name: "myapex",
@@ -3057,6 +3098,7 @@
 }
 
 func TestVndkApexWithPrebuilt(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testApex(t, `
 		apex_vndk {
 			name: "myapex",
@@ -3139,6 +3181,7 @@
 }
 
 func TestVndkApexVersion(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testApex(t, `
 		apex_vndk {
 			name: "myapex_v27",
@@ -3205,6 +3248,7 @@
 }
 
 func TestVndkApexErrorWithDuplicateVersion(t *testing.T) {
+	t.Parallel()
 	testApexError(t, `module "myapex_v27.*" .*: vndk_version: 27 is already defined in "myapex_v27.*"`, `
 		apex_vndk {
 			name: "myapex_v27",
@@ -3251,6 +3295,7 @@
 }
 
 func TestVndkApexNameRule(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testApex(t, `
 		apex_vndk {
 			name: "myapex",
@@ -3282,6 +3327,7 @@
 }
 
 func TestVndkApexSkipsNativeBridgeSupportedModules(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testApex(t, `
 		apex_vndk {
 			name: "myapex",
@@ -3320,6 +3366,7 @@
 }
 
 func TestVndkApexDoesntSupportNativeBridgeSupported(t *testing.T) {
+	t.Parallel()
 	testApexError(t, `module "myapex" .*: native_bridge_supported: .* doesn't support native bridge binary`, `
 		apex_vndk {
 			name: "myapex",
@@ -3350,6 +3397,7 @@
 }
 
 func TestVndkApexWithBinder32(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testApex(t, `
 		apex_vndk {
 			name: "myapex_v27",
@@ -3416,6 +3464,7 @@
 }
 
 func TestVndkApexShouldNotProvideNativeLibs(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testApex(t, `
 		apex_vndk {
 			name: "myapex",
@@ -3450,6 +3499,7 @@
 }
 
 func TestDependenciesInApexManifest(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testApex(t, `
 		apex {
 			name: "myapex_nodep",
@@ -3554,6 +3604,7 @@
 }
 
 func TestApexName(t *testing.T) {
+	t.Parallel()
 	ctx, config := testApex(t, `
 		apex {
 			name: "myapex",
@@ -3598,6 +3649,7 @@
 }
 
 func TestNonTestApex(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testApex(t, `
 		apex {
 			name: "myapex",
@@ -3643,16 +3695,14 @@
 	// Ensure that the platform variant ends with _shared
 	ensureListContains(t, ctx.ModuleVariantsForTests("mylib_common"), "android_arm64_armv8-a_shared")
 
-	if !android.InAnyApex("mylib_common") {
+	if !ctx.ModuleForTests("mylib_common", "android_arm64_armv8-a_shared_apex10000").Module().(*cc.Module).InAnyApex() {
 		t.Log("Found mylib_common not in any apex!")
 		t.Fail()
 	}
 }
 
 func TestTestApex(t *testing.T) {
-	if android.InAnyApex("mylib_common_test") {
-		t.Fatal("mylib_common_test must not be used in any other tests since this checks that global state is not updated in an illegal way!")
-	}
+	t.Parallel()
 	ctx, _ := testApex(t, `
 		apex_test {
 			name: "myapex",
@@ -3701,6 +3751,7 @@
 }
 
 func TestApexWithTarget(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testApex(t, `
 		apex {
 			name: "myapex",
@@ -3791,6 +3842,7 @@
 }
 
 func TestApexWithShBinary(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testApex(t, `
 		apex {
 			name: "myapex",
@@ -3819,6 +3871,7 @@
 }
 
 func TestApexInVariousPartition(t *testing.T) {
+	t.Parallel()
 	testcases := []struct {
 		propName, parition, flattenedPartition string
 	}{
@@ -3863,6 +3916,7 @@
 }
 
 func TestFileContexts_FindInDefaultLocationIfNotSet(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testApex(t, `
 		apex {
 			name: "myapex",
@@ -3881,6 +3935,7 @@
 }
 
 func TestFileContexts_ShouldBeUnderSystemSepolicyForSystemApexes(t *testing.T) {
+	t.Parallel()
 	testApexError(t, `"myapex" .*: file_contexts: should be under system/sepolicy`, `
 		apex {
 			name: "myapex",
@@ -3899,6 +3954,7 @@
 }
 
 func TestFileContexts_ProductSpecificApexes(t *testing.T) {
+	t.Parallel()
 	testApexError(t, `"myapex" .*: file_contexts: cannot find`, `
 		apex {
 			name: "myapex",
@@ -3936,6 +3992,7 @@
 }
 
 func TestFileContexts_SetViaFileGroup(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testApex(t, `
 		apex {
 			name: "myapex",
@@ -3963,6 +4020,7 @@
 }
 
 func TestApexKeyFromOtherModule(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testApex(t, `
 		apex_key {
 			name: "myapex.key",
@@ -3996,6 +4054,7 @@
 }
 
 func TestPrebuilt(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testApex(t, `
 		prebuilt_apex {
 			name: "myapex",
@@ -4019,6 +4078,7 @@
 }
 
 func TestPrebuiltFilenameOverride(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testApex(t, `
 		prebuilt_apex {
 			name: "myapex",
@@ -4036,6 +4096,7 @@
 }
 
 func TestPrebuiltOverrides(t *testing.T) {
+	t.Parallel()
 	ctx, config := testApex(t, `
 		prebuilt_apex {
 			name: "myapex.prebuilt",
@@ -4056,6 +4117,7 @@
 }
 
 func TestApexWithTests(t *testing.T) {
+	t.Parallel()
 	ctx, config := testApex(t, `
 		apex_test {
 			name: "myapex",
@@ -4167,6 +4229,7 @@
 }
 
 func TestInstallExtraFlattenedApexes(t *testing.T) {
+	t.Parallel()
 	ctx, config := testApex(t, `
 		apex {
 			name: "myapex",
@@ -4190,6 +4253,7 @@
 }
 
 func TestApexUsesOtherApex(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testApex(t, `
 		apex {
 			name: "myapex",
@@ -4250,6 +4314,7 @@
 }
 
 func TestApexUsesFailsIfNotProvided(t *testing.T) {
+	t.Parallel()
 	testApexError(t, `uses: "commonapex" does not provide native_shared_libs`, `
 		apex {
 			name: "myapex",
@@ -4290,6 +4355,7 @@
 }
 
 func TestApexUsesFailsIfUseVenderMismatch(t *testing.T) {
+	t.Parallel()
 	testApexError(t, `use_vendor: "commonapex" has different value of use_vendor`, `
 		apex {
 			name: "myapex",
@@ -4315,6 +4381,7 @@
 }
 
 func TestErrorsIfDepsAreNotEnabled(t *testing.T) {
+	t.Parallel()
 	testApexError(t, `module "myapex" .* depends on disabled module "libfoo"`, `
 		apex {
 			name: "myapex",
@@ -4361,6 +4428,7 @@
 }
 
 func TestApexWithApps(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testApex(t, `
 		apex {
 			name: "myapex",
@@ -4439,6 +4507,7 @@
 }
 
 func TestApexWithAppImports(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testApex(t, `
 		apex {
 			name: "myapex",
@@ -4487,6 +4556,7 @@
 }
 
 func TestApexWithAppImportsPrefer(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testApex(t, `
 		apex {
 			name: "myapex",
@@ -4528,6 +4598,7 @@
 }
 
 func TestApexWithTestHelperApp(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testApex(t, `
 		apex {
 			name: "myapex",
@@ -4559,6 +4630,7 @@
 }
 
 func TestApexPropertiesShouldBeDefaultable(t *testing.T) {
+	t.Parallel()
 	// libfoo's apex_available comes from cc_defaults
 	testApexError(t, `requires "libfoo" that is not available for the APEX`, `
 	apex {
@@ -4593,6 +4665,7 @@
 }
 
 func TestApexAvailable_DirectDep(t *testing.T) {
+	t.Parallel()
 	// libfoo is not available to myapex, but only to otherapex
 	testApexError(t, "requires \"libfoo\" that is not available for the APEX", `
 	apex {
@@ -4628,6 +4701,7 @@
 }
 
 func TestApexAvailable_IndirectDep(t *testing.T) {
+	t.Parallel()
 	// libbbaz is an indirect dep
 	testApexError(t, `requires "libbaz" that is not available for the APEX. Dependency path:
 .*via tag apex\.dependencyTag.*name:sharedLib.*
@@ -4672,6 +4746,7 @@
 }
 
 func TestApexAvailable_InvalidApexName(t *testing.T) {
+	t.Parallel()
 	testApexError(t, "\"otherapex\" is not a valid module name", `
 	apex {
 		name: "myapex",
@@ -4731,6 +4806,7 @@
 }
 
 func TestApexAvailable_CheckForPlatform(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testApex(t, `
 	apex {
 		name: "myapex",
@@ -4793,6 +4869,7 @@
 }
 
 func TestApexAvailable_CreatedForApex(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testApex(t, `
 	apex {
 		name: "myapex",
@@ -4827,6 +4904,7 @@
 }
 
 func TestOverrideApex(t *testing.T) {
+	t.Parallel()
 	ctx, config := testApex(t, `
 		apex {
 			name: "myapex",
@@ -4910,6 +4988,7 @@
 }
 
 func TestLegacyAndroid10Support(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testApex(t, `
 		apex {
 			name: "myapex",
@@ -4965,6 +5044,7 @@
 }
 
 func TestJavaSDKLibrary(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testApex(t, `
 		apex {
 			name: "myapex",
@@ -4997,6 +5077,7 @@
 }
 
 func TestJavaSDKLibrary_WithinApex(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testApex(t, `
 		apex {
 			name: "myapex",
@@ -5044,6 +5125,7 @@
 }
 
 func TestJavaSDKLibrary_CrossBoundary(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testApex(t, `
 		apex {
 			name: "myapex",
@@ -5089,6 +5171,7 @@
 }
 
 func TestJavaSDKLibrary_ImportPreferred(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testApex(t, ``,
 		withFiles(map[string][]byte{
 			"apex/a.java":             nil,
@@ -5174,6 +5257,7 @@
 }
 
 func TestJavaSDKLibrary_ImportOnly(t *testing.T) {
+	t.Parallel()
 	testApexError(t, `java_libs: "foo" is not configured to be compiled into dex`, `
 		apex {
 			name: "myapex",
@@ -5200,6 +5284,7 @@
 }
 
 func TestCompatConfig(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testApex(t, `
 		apex {
 			name: "myapex",
@@ -5234,6 +5319,7 @@
 }
 
 func TestRejectNonInstallableJavaLibrary(t *testing.T) {
+	t.Parallel()
 	testApexError(t, `"myjar" is not configured to be compiled into dex`, `
 		apex {
 			name: "myapex",
@@ -5259,6 +5345,7 @@
 }
 
 func TestCarryRequiredModuleNames(t *testing.T) {
+	t.Parallel()
 	ctx, config := testApex(t, `
 		apex {
 			name: "myapex",
@@ -5297,6 +5384,7 @@
 }
 
 func TestSymlinksFromApexToSystem(t *testing.T) {
+	t.Parallel()
 	bp := `
 		apex {
 			name: "myapex",
@@ -5426,6 +5514,7 @@
 }
 
 func TestSymlinksFromApexToSystemRequiredModuleNames(t *testing.T) {
+	t.Parallel()
 	ctx, config := testApex(t, `
 		apex {
 			name: "myapex",
@@ -5477,6 +5566,7 @@
 }
 
 func TestApexWithJniLibs(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testApex(t, `
 		apex {
 			name: "myapex",
@@ -5518,6 +5608,7 @@
 }
 
 func TestApexMutatorsDontRunIfDisabled(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testApex(t, `
 		apex {
 			name: "myapex",
@@ -5539,6 +5630,7 @@
 }
 
 func TestAppBundle(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testApex(t, `
 		apex {
 			name: "myapex",
@@ -5569,6 +5661,7 @@
 }
 
 func TestAppSetBundle(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testApex(t, `
 		apex {
 			name: "myapex",
@@ -5743,6 +5836,7 @@
 }
 
 func TestUpdatable_should_set_min_sdk_version(t *testing.T) {
+	t.Parallel()
 	testApexError(t, `"myapex" .*: updatable: updatable APEXes should set min_sdk_version`, `
 		apex {
 			name: "myapex",
@@ -5759,6 +5853,7 @@
 }
 
 func TestNoUpdatableJarsInBootImage(t *testing.T) {
+	t.Parallel()
 	var err string
 	var transform func(*dexpreopt.GlobalConfig)
 
@@ -5845,7 +5940,6 @@
 
 func testApexPermittedPackagesRules(t *testing.T, errmsg, bp string, apexBootJars []string, rules []android.Rule) {
 	t.Helper()
-	android.ClearApexDependency()
 	bp += `
 	apex_key {
 		name: "myapex.key",
@@ -5896,6 +5990,7 @@
 }
 
 func TestApexPermittedPackagesRules(t *testing.T) {
+	t.Parallel()
 	testcases := []struct {
 		name            string
 		expectedError   string
@@ -5979,6 +6074,7 @@
 }
 
 func TestTestFor(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testApex(t, `
 		apex {
 			name: "myapex",
@@ -6036,6 +6132,7 @@
 }
 
 func TestApexSet(t *testing.T) {
+	t.Parallel()
 	ctx, config := testApex(t, `
 		apex_set {
 			name: "myapex",
@@ -6075,6 +6172,7 @@
 }
 
 func TestNoStaticLinkingToStubsLib(t *testing.T) {
+	t.Parallel()
 	testApexError(t, `.*required by "mylib" is a native library providing stub.*`, `
 		apex {
 			name: "myapex",
@@ -6111,6 +6209,7 @@
 }
 
 func TestApexKeysTxt(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testApex(t, `
 		apex {
 			name: "myapex",
@@ -6151,6 +6250,7 @@
 }
 
 func TestAllowedFiles(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testApex(t, `
 		apex {
 			name: "myapex",
@@ -6206,6 +6306,7 @@
 }
 
 func TestNonPreferredPrebuiltDependency(t *testing.T) {
+	t.Parallel()
 	_, _ = testApex(t, `
 		apex {
 			name: "myapex",
diff --git a/apex/vndk_test.go b/apex/vndk_test.go
index 60b6ed5..e623990 100644
--- a/apex/vndk_test.go
+++ b/apex/vndk_test.go
@@ -9,6 +9,7 @@
 )
 
 func TestVndkApexForVndkLite(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testApex(t, `
 		apex_vndk {
 			name: "myapex",
@@ -62,6 +63,7 @@
 }
 
 func TestVndkApexUsesVendorVariant(t *testing.T) {
+	t.Parallel()
 	bp := `
 		apex_vndk {
 			name: "myapex",
diff --git a/bpf/bpf_test.go b/bpf/bpf_test.go
index d06d7d1..44d4cc3 100644
--- a/bpf/bpf_test.go
+++ b/bpf/bpf_test.go
@@ -66,6 +66,7 @@
 }
 
 func TestBpfDataDependency(t *testing.T) {
+	t.Parallel()
 	bp := `
 		bpf {
 			name: "bpf.o",
diff --git a/bpfix/bpfix/bpfix_test.go b/bpfix/bpfix/bpfix_test.go
index ef9814f..2bbbd7f 100644
--- a/bpfix/bpfix/bpfix_test.go
+++ b/bpfix/bpfix/bpfix_test.go
@@ -116,6 +116,7 @@
 }
 
 func TestSimplifyKnownVariablesDuplicatingEachOther(t *testing.T) {
+	t.Parallel()
 	// TODO use []Expression{} once buildTree above can support it (which is after b/38325146 is done)
 	implFilterListTest(t, []string{"include"}, []string{"include"}, nil)
 	implFilterListTest(t, []string{"include1"}, []string{"include2"}, []string{"include1"})
@@ -169,6 +170,7 @@
 }
 
 func TestMergeMatchingProperties(t *testing.T) {
+	t.Parallel()
 	tests := []struct {
 		name string
 		in   string
@@ -258,6 +260,7 @@
 }
 
 func TestReorderCommonProperties(t *testing.T) {
+	t.Parallel()
 	var tests = []struct {
 		name string
 		in   string
@@ -344,6 +347,7 @@
 }
 
 func TestRemoveMatchingModuleListProperties(t *testing.T) {
+	t.Parallel()
 	var tests = []struct {
 		name string
 		in   string
@@ -499,6 +503,7 @@
 }
 
 func TestReplaceJavaStaticLibs(t *testing.T) {
+	t.Parallel()
 	tests := []struct {
 		name string
 		in   string
@@ -557,6 +562,7 @@
 }
 
 func TestRewritePrebuilts(t *testing.T) {
+	t.Parallel()
 	tests := []struct {
 		name string
 		in   string
@@ -623,6 +629,7 @@
 }
 
 func TestRewriteCtsModuleTypes(t *testing.T) {
+	t.Parallel()
 	tests := []struct {
 		name string
 		in   string
@@ -694,6 +701,7 @@
 }
 
 func TestRewritePrebuiltEtc(t *testing.T) {
+	t.Parallel()
 	tests := []struct {
 		name string
 		in   string
@@ -769,6 +777,7 @@
 }
 
 func TestRewriteAndroidTest(t *testing.T) {
+	t.Parallel()
 	tests := []struct {
 		name string
 		in   string
@@ -802,6 +811,7 @@
 }
 
 func TestRewriteAndroidAppImport(t *testing.T) {
+	t.Parallel()
 	tests := []struct {
 		name string
 		in   string
@@ -851,6 +861,7 @@
 }
 
 func TestRemoveEmptyLibDependencies(t *testing.T) {
+	t.Parallel()
 	tests := []struct {
 		name string
 		in   string
@@ -905,6 +916,7 @@
 }
 
 func TestRemoveHidlInterfaceTypes(t *testing.T) {
+	t.Parallel()
 	tests := []struct {
 		name string
 		in   string
@@ -936,6 +948,7 @@
 }
 
 func TestRemoveSoongConfigBoolVariable(t *testing.T) {
+	t.Parallel()
 	tests := []struct {
 		name string
 		in   string
@@ -1000,6 +1013,7 @@
 }
 
 func TestRemovePdkProperty(t *testing.T) {
+	t.Parallel()
 	tests := []struct {
 		name string
 		in   string
diff --git a/cc/androidmk.go b/cc/androidmk.go
index d92fabc..a2549b8 100644
--- a/cc/androidmk.go
+++ b/cc/androidmk.go
@@ -33,7 +33,6 @@
 )
 
 type AndroidMkContext interface {
-	BaseModuleName() string
 	Target() android.Target
 	subAndroidMk(*android.AndroidMkEntries, interface{})
 	Arch() android.Arch
@@ -44,6 +43,7 @@
 	static() bool
 	InRamdisk() bool
 	InRecovery() bool
+	AnyVariantDirectlyInAnyApex() bool
 }
 
 type subAndroidMkProvider interface {
@@ -63,7 +63,7 @@
 }
 
 func (c *Module) AndroidMkEntries() []android.AndroidMkEntries {
-	if c.Properties.HideFromMake || !c.IsForPlatform() {
+	if c.hideApexVariantFromMake || c.Properties.HideFromMake {
 		return []android.AndroidMkEntries{{
 			Disabled: true,
 		}}
@@ -277,9 +277,8 @@
 			}
 		})
 	}
-	if len(library.Properties.Stubs.Versions) > 0 &&
-		android.DirectlyInAnyApex(ctx, ctx.BaseModuleName()) && !ctx.InRamdisk() && !ctx.InRecovery() && !ctx.UseVndk() &&
-		!ctx.static() {
+	if len(library.Properties.Stubs.Versions) > 0 && !ctx.Host() && ctx.AnyVariantDirectlyInAnyApex() &&
+		!ctx.InRamdisk() && !ctx.InRecovery() && !ctx.UseVndk() && !ctx.static() {
 		if library.buildStubs() && library.isLatestStubVersion() {
 			// reference the latest version via its name without suffix when it is provided by apex
 			entries.SubName = ""
diff --git a/cc/binary.go b/cc/binary.go
index b3ce5ff..7f7b619 100644
--- a/cc/binary.go
+++ b/cc/binary.go
@@ -445,7 +445,9 @@
 	// The original path becomes a symlink to the corresponding file in the
 	// runtime APEX.
 	translatedArch := ctx.Target().NativeBridge == android.NativeBridgeEnabled
-	if android.DirectlyInAnyApex(ctx, ctx.ModuleName()) && InstallToBootstrap(ctx.baseModuleName(), ctx.Config()) && !translatedArch && ctx.apexVariationName() == "" && !ctx.inRamdisk() && !ctx.inRecovery() {
+	if InstallToBootstrap(ctx.baseModuleName(), ctx.Config()) && !ctx.Host() && ctx.directlyInAnyApex() &&
+		!translatedArch && ctx.apexVariationName() == "" && !ctx.inRamdisk() && !ctx.inRecovery() {
+
 		if ctx.Device() && isBionic(ctx.baseModuleName()) {
 			binary.installSymlinkToRuntimeApex(ctx, file)
 		}
diff --git a/cc/cc.go b/cc/cc.go
index 03290ad..8188550 100644
--- a/cc/cc.go
+++ b/cc/cc.go
@@ -366,6 +366,7 @@
 	bootstrap() bool
 	mustUseVendorVariant() bool
 	nativeCoverage() bool
+	directlyInAnyApex() bool
 }
 
 type ModuleContext interface {
@@ -545,8 +546,17 @@
 	dataLibDepTag         = dependencyTag{name: "data lib"}
 	runtimeDepTag         = dependencyTag{name: "runtime lib"}
 	testPerSrcDepTag      = dependencyTag{name: "test_per_src"}
+	testForDepTag         = dependencyTag{name: "test for apex"}
+
+	stubImplDepTag = copyDirectlyInAnyApexDependencyTag{name: "stub_impl"}
 )
 
+type copyDirectlyInAnyApexDependencyTag dependencyTag
+
+func (copyDirectlyInAnyApexDependencyTag) CopyDirectlyInAnyApex() {}
+
+var _ android.CopyDirectlyInAnyApexTag = copyDirectlyInAnyApexDependencyTag{}
+
 func IsSharedDepTag(depTag blueprint.DependencyTag) bool {
 	ccLibDepTag, ok := depTag.(libraryDependencyTag)
 	return ok && ccLibDepTag.shared()
@@ -622,6 +632,8 @@
 
 	// For apex variants, this is set as apex.min_sdk_version
 	apexSdkVersion android.ApiLevel
+
+	hideApexVariantFromMake bool
 }
 
 func (c *Module) Toc() android.OptionalPath {
@@ -1363,11 +1375,11 @@
 }
 
 func (ctx *moduleContextImpl) isForPlatform() bool {
-	return ctx.mod.IsForPlatform()
+	return ctx.ctx.Provider(android.ApexInfoProvider).(android.ApexInfo).IsForPlatform()
 }
 
 func (ctx *moduleContextImpl) apexVariationName() string {
-	return ctx.mod.ApexVariationName()
+	return ctx.ctx.Provider(android.ApexInfoProvider).(android.ApexInfo).ApexVariationName
 }
 
 func (ctx *moduleContextImpl) apexSdkVersion() android.ApiLevel {
@@ -1390,6 +1402,10 @@
 	return ctx.mod.nativeCoverage()
 }
 
+func (ctx *moduleContextImpl) directlyInAnyApex() bool {
+	return ctx.mod.DirectlyInAnyApex()
+}
+
 func newBaseModule(hod android.HostOrDeviceSupported, multilib android.Multilib) *Module {
 	return &Module{
 		hod:      hod,
@@ -1545,6 +1561,11 @@
 		return
 	}
 
+	apexInfo := actx.Provider(android.ApexInfoProvider).(android.ApexInfo)
+	if !apexInfo.IsForPlatform() {
+		c.hideApexVariantFromMake = true
+	}
+
 	c.makeLinkType = c.getMakeLinkType(actx)
 
 	c.Properties.SubName = ""
@@ -1676,8 +1697,7 @@
 		// force anything in the make world to link against the stubs library.
 		// (unless it is explicitly referenced via .bootstrap suffix or the
 		// module is marked with 'bootstrap: true').
-		if c.HasStubsVariants() &&
-			android.DirectlyInAnyApex(ctx, ctx.baseModuleName()) && !c.InRamdisk() &&
+		if c.HasStubsVariants() && c.AnyVariantDirectlyInAnyApex() && !c.InRamdisk() &&
 			!c.InRecovery() && !c.UseVndk() && !c.static() && !c.isCoverageVariant() &&
 			c.IsStubs() {
 			c.Properties.HideFromMake = false // unhide
@@ -1686,13 +1706,13 @@
 
 		// glob exported headers for snapshot, if BOARD_VNDK_VERSION is current.
 		if i, ok := c.linker.(snapshotLibraryInterface); ok && ctx.DeviceConfig().VndkVersion() == "current" {
-			if isSnapshotAware(ctx, c) {
+			if isSnapshotAware(ctx, c, apexInfo) {
 				i.collectHeadersForSnapshot(ctx)
 			}
 		}
 	}
 
-	if c.installable() {
+	if c.installable(apexInfo) {
 		c.installer.install(ctx, c.outputFile.Path())
 		if ctx.Failed() {
 			return
@@ -2381,8 +2401,9 @@
 
 	// For the dependency from platform to apex, use the latest stubs
 	c.apexSdkVersion = android.FutureApiLevel
-	if !c.IsForPlatform() {
-		c.apexSdkVersion = c.ApexProperties.Info.MinSdkVersion(ctx)
+	apexInfo := ctx.Provider(android.ApexInfoProvider).(android.ApexInfo)
+	if !apexInfo.IsForPlatform() {
+		c.apexSdkVersion = apexInfo.MinSdkVersion(ctx)
 	}
 
 	if android.InList("hwaddress", ctx.Config().SanitizeDevice()) {
@@ -2493,8 +2514,8 @@
 			if ccDep.CcLibrary() && !libDepTag.static() {
 				depIsStubs := ccDep.BuildStubs()
 				depHasStubs := CanBeOrLinkAgainstVersionVariants(c) && ccDep.HasStubsVariants()
-				depInSameApexes := android.DirectlyInAllApexes(c.InApexes(), depName)
-				depInPlatform := !android.DirectlyInAnyApex(ctx, depName)
+				depInSameApexes := android.DirectlyInAllApexes(apexInfo, depName)
+				depInPlatform := !dep.(android.ApexModule).AnyVariantDirectlyInAnyApex()
 
 				var useThisDep bool
 				if depIsStubs && libDepTag.explicitlyVersioned {
@@ -2504,7 +2525,7 @@
 					// Use non-stub variant if that is the only choice
 					// (i.e. depending on a lib without stubs.version property)
 					useThisDep = true
-				} else if c.IsForPlatform() {
+				} else if apexInfo.IsForPlatform() {
 					// If not building for APEX, use stubs only when it is from
 					// an APEX (and not from platform)
 					useThisDep = (depInPlatform != depIsStubs)
@@ -2513,11 +2534,12 @@
 						// always link to non-stub variant
 						useThisDep = !depIsStubs
 					}
-					for _, testFor := range c.TestFor() {
-						// Another exception: if this module is bundled with an APEX, then
-						// it is linked with the non-stub variant of a module in the APEX
-						// as if this is part of the APEX.
-						if android.DirectlyInApex(testFor, depName) {
+					// Another exception: if this module is bundled with an APEX, then
+					// it is linked with the non-stub variant of a module in the APEX
+					// as if this is part of the APEX.
+					testFor := ctx.Provider(android.ApexTestForInfoProvider).(android.ApexTestForInfo)
+					for _, apexContents := range testFor.ApexContents {
+						if apexContents.DirectlyInApex(depName) {
 							useThisDep = !depIsStubs
 							break
 						}
@@ -2549,7 +2571,7 @@
 					// by default, use current version of LLNDK
 					versionToUse := ""
 					versions := m.AllStubsVersions()
-					if c.ApexVariationName() != "" && len(versions) > 0 {
+					if apexInfo.ApexVariationName != "" && len(versions) > 0 {
 						// if this is for use_vendor apex && dep has stubsVersions
 						// apply the same rule of apex sdk enforcement to choose right version
 						var err error
@@ -2711,10 +2733,11 @@
 					c.Properties.AndroidMkHeaderLibs, makeLibName)
 			case libDepTag.shared():
 				if ccDep.CcLibrary() {
-					if ccDep.BuildStubs() && android.InAnyApex(depName) {
+					if ccDep.BuildStubs() && dep.(android.ApexModule).InAnyApex() {
 						// Add the dependency to the APEX(es) providing the library so that
 						// m <module> can trigger building the APEXes as well.
-						for _, an := range android.GetApexesForModule(depName) {
+						depApexInfo := ctx.OtherModuleProvider(dep, android.ApexInfoProvider).(android.ApexInfo)
+						for _, an := range depApexInfo.InApexes {
 							c.Properties.ApexesProvidingSharedLibs = append(
 								c.Properties.ApexesProvidingSharedLibs, an)
 						}
@@ -3018,7 +3041,7 @@
 		c.installer.everInstallable()
 }
 
-func (c *Module) installable() bool {
+func (c *Module) installable(apexInfo android.ApexInfo) bool {
 	ret := c.EverInstallable() &&
 		// Check to see whether the module has been configured to not be installed.
 		proptools.BoolDefault(c.Properties.Installable, true) &&
@@ -3027,7 +3050,7 @@
 	// The platform variant doesn't need further condition. Apex variants however might not
 	// be installable because it will likely to be included in the APEX and won't appear
 	// in the system partition.
-	if c.IsForPlatform() {
+	if apexInfo.IsForPlatform() {
 		return ret
 	}
 
diff --git a/cc/cc_test.go b/cc/cc_test.go
index e0d4640..8d00239 100644
--- a/cc/cc_test.go
+++ b/cc/cc_test.go
@@ -128,6 +128,7 @@
 )
 
 func TestFuchsiaDeps(t *testing.T) {
+	t.Parallel()
 	t.Helper()
 
 	bp := `
@@ -165,6 +166,7 @@
 }
 
 func TestFuchsiaTargetDecl(t *testing.T) {
+	t.Parallel()
 	t.Helper()
 
 	bp := `
@@ -191,6 +193,7 @@
 }
 
 func TestVendorSrc(t *testing.T) {
+	t.Parallel()
 	ctx := testCc(t, `
 		cc_library {
 			name: "libTest",
@@ -321,6 +324,7 @@
 }
 
 func TestVndk(t *testing.T) {
+	t.Parallel()
 	bp := `
 		cc_library {
 			name: "libvndk",
@@ -447,6 +451,7 @@
 }
 
 func TestVndkWithHostSupported(t *testing.T) {
+	t.Parallel()
 	ctx := testCc(t, `
 		cc_library {
 			name: "libvndk_host_supported",
@@ -481,6 +486,7 @@
 }
 
 func TestVndkLibrariesTxtAndroidMk(t *testing.T) {
+	t.Parallel()
 	bp := `
 		vndk_libraries_txt {
 			name: "llndk.libraries.txt",
@@ -496,6 +502,7 @@
 }
 
 func TestVndkUsingCoreVariant(t *testing.T) {
+	t.Parallel()
 	bp := `
 		cc_library {
 			name: "libvndk",
@@ -543,6 +550,7 @@
 }
 
 func TestDataLibs(t *testing.T) {
+	t.Parallel()
 	bp := `
 		cc_test_library {
 			name: "test_lib",
@@ -593,6 +601,7 @@
 }
 
 func TestDataLibsRelativeInstallPath(t *testing.T) {
+	t.Parallel()
 	bp := `
 		cc_test_library {
 			name: "test_lib",
@@ -640,6 +649,7 @@
 }
 
 func TestVndkWhenVndkVersionIsNotSet(t *testing.T) {
+	t.Parallel()
 	ctx := testCcNoVndk(t, `
 		cc_library {
 			name: "libvndk",
@@ -663,6 +673,7 @@
 }
 
 func TestVndkDepError(t *testing.T) {
+	t.Parallel()
 	// Check whether an error is emitted when a VNDK lib depends on a system lib.
 	testCcError(t, "dependency \".*\" of \".*\" missing variant", `
 		cc_library {
@@ -842,6 +853,7 @@
 }
 
 func TestDoubleLoadbleDep(t *testing.T) {
+	t.Parallel()
 	// okay to link : LLNDK -> double_loadable VNDK
 	testCc(t, `
 		cc_library {
@@ -947,6 +959,7 @@
 }
 
 func TestVendorSnapshotCapture(t *testing.T) {
+	t.Parallel()
 	bp := `
 	cc_library {
 		name: "libvndk",
@@ -1080,6 +1093,7 @@
 }
 
 func TestVendorSnapshotUse(t *testing.T) {
+	t.Parallel()
 	frameworkBp := `
 	cc_library {
 		name: "libvndk",
@@ -1289,6 +1303,7 @@
 }
 
 func TestVendorSnapshotSanitizer(t *testing.T) {
+	t.Parallel()
 	bp := `
 	vendor_snapshot_static {
 		name: "libsnapshot",
@@ -1329,6 +1344,7 @@
 }
 
 func TestVendorSnapshotExclude(t *testing.T) {
+	t.Parallel()
 
 	// This test verifies that the exclude_from_vendor_snapshot property
 	// makes its way from the Android.bp source file into the module data
@@ -1436,6 +1452,7 @@
 }
 
 func TestVendorSnapshotExcludeInVendorProprietaryPathErrors(t *testing.T) {
+	t.Parallel()
 
 	// This test verifies that using the exclude_from_vendor_snapshot
 	// property on a module in a vendor proprietary path generates an
@@ -1476,6 +1493,7 @@
 }
 
 func TestVendorSnapshotExcludeWithVendorAvailable(t *testing.T) {
+	t.Parallel()
 
 	// This test verifies that using the exclude_from_vendor_snapshot
 	// property on a module that is vendor available generates an error. A
@@ -1519,6 +1537,7 @@
 }
 
 func TestDoubleLoadableDepError(t *testing.T) {
+	t.Parallel()
 	// Check whether an error is emitted when a LLNDK depends on a non-double_loadable VNDK lib.
 	testCcError(t, "module \".*\" variant \".*\": link.* \".*\" which is not LL-NDK, VNDK-SP, .*double_loadable", `
 		cc_library {
@@ -1639,6 +1658,7 @@
 }
 
 func TestVndkExt(t *testing.T) {
+	t.Parallel()
 	// This test checks the VNDK-Ext properties.
 	bp := `
 		cc_library {
@@ -1721,6 +1741,7 @@
 }
 
 func TestVndkExtWithoutBoardVndkVersion(t *testing.T) {
+	t.Parallel()
 	// This test checks the VNDK-Ext properties when BOARD_VNDK_VERSION is not set.
 	ctx := testCcNoVndk(t, `
 		cc_library {
@@ -1751,6 +1772,7 @@
 }
 
 func TestVndkExtWithoutProductVndkVersion(t *testing.T) {
+	t.Parallel()
 	// This test checks the VNDK-Ext properties when PRODUCT_PRODUCT_VNDK_VERSION is not set.
 	ctx := testCc(t, `
 		cc_library {
@@ -1781,6 +1803,7 @@
 }
 
 func TestVndkExtError(t *testing.T) {
+	t.Parallel()
 	// This test ensures an error is emitted in ill-formed vndk-ext definition.
 	testCcError(t, "must set `vendor: true` or `product_specific: true` to set `extends: \".*\"`", `
 		cc_library {
@@ -1866,6 +1889,7 @@
 }
 
 func TestVndkExtInconsistentSupportSystemProcessError(t *testing.T) {
+	t.Parallel()
 	// This test ensures an error is emitted for inconsistent support_system_process.
 	testCcError(t, "module \".*\" with mismatched support_system_process", `
 		cc_library {
@@ -1913,6 +1937,7 @@
 }
 
 func TestVndkExtVendorAvailableFalseError(t *testing.T) {
+	t.Parallel()
 	// This test ensures an error is emitted when a VNDK-Ext library extends a VNDK library
 	// with `vendor_available: false`.
 	testCcError(t, "`extends` refers module \".*\" which does not have `vendor_available: true`", `
@@ -1959,6 +1984,7 @@
 }
 
 func TestVendorModuleUseVndkExt(t *testing.T) {
+	t.Parallel()
 	// This test ensures a vendor module can depend on a VNDK-Ext library.
 	testCc(t, `
 		cc_library {
@@ -2011,6 +2037,7 @@
 }
 
 func TestVndkExtUseVendorLib(t *testing.T) {
+	t.Parallel()
 	// This test ensures a VNDK-Ext library can depend on a vendor library.
 	testCc(t, `
 		cc_library {
@@ -2073,6 +2100,7 @@
 }
 
 func TestProductVndkExtDependency(t *testing.T) {
+	t.Parallel()
 	bp := `
 		cc_library {
 			name: "libvndk",
@@ -2138,6 +2166,7 @@
 }
 
 func TestVndkSpExtUseVndkError(t *testing.T) {
+	t.Parallel()
 	// This test ensures an error is emitted if a VNDK-SP-Ext library depends on a VNDK
 	// library.
 	testCcError(t, "module \".*\" variant \".*\": \\(.*\\) should not link to \".*\"", `
@@ -2220,6 +2249,7 @@
 }
 
 func TestVndkUseVndkExtError(t *testing.T) {
+	t.Parallel()
 	// This test ensures an error is emitted if a VNDK/VNDK-SP library depends on a
 	// VNDK-Ext/VNDK-SP-Ext library.
 	testCcError(t, "dependency \".*\" of \".*\" missing variant", `
@@ -2359,6 +2389,7 @@
 }
 
 func TestEnforceProductVndkVersion(t *testing.T) {
+	t.Parallel()
 	bp := `
 		cc_library {
 			name: "libllndk",
@@ -2433,6 +2464,7 @@
 }
 
 func TestEnforceProductVndkVersionErrors(t *testing.T) {
+	t.Parallel()
 	testCcErrorProductVndk(t, "dependency \".*\" of \".*\" missing variant:\n.*image:product.VER", `
 		cc_library {
 			name: "libprod",
@@ -2513,6 +2545,7 @@
 }
 
 func TestMakeLinkType(t *testing.T) {
+	t.Parallel()
 	bp := `
 		cc_library {
 			name: "libvndk",
@@ -2706,6 +2739,7 @@
 }
 
 func TestSplitListForSize(t *testing.T) {
+	t.Parallel()
 	for _, testCase := range splitListForSizeTestCases {
 		out, _ := splitListForSize(android.PathsForTesting(testCase.in...), testCase.size)
 
@@ -2891,6 +2925,7 @@
 }
 
 func TestLinkReordering(t *testing.T) {
+	t.Parallel()
 	for _, testCase := range staticLinkDepOrderTestCases {
 		errs := []string{}
 
@@ -2953,6 +2988,7 @@
 }
 
 func TestStaticLibDepReordering(t *testing.T) {
+	t.Parallel()
 	ctx := testCc(t, `
 	cc_library {
 		name: "a",
@@ -2991,6 +3027,7 @@
 }
 
 func TestStaticLibDepReorderingWithShared(t *testing.T) {
+	t.Parallel()
 	ctx := testCc(t, `
 	cc_library {
 		name: "a",
@@ -3037,6 +3074,7 @@
 }
 
 func TestLlndkLibrary(t *testing.T) {
+	t.Parallel()
 	ctx := testCc(t, `
 	cc_library {
 		name: "libllndk",
@@ -3065,6 +3103,7 @@
 }
 
 func TestLlndkHeaders(t *testing.T) {
+	t.Parallel()
 	ctx := testCc(t, `
 	llndk_headers {
 		name: "libllndk_headers",
@@ -3158,6 +3197,7 @@
 `
 
 func TestRuntimeLibs(t *testing.T) {
+	t.Parallel()
 	ctx := testCc(t, runtimeLibAndroidBp)
 
 	// runtime_libs for core variants use the module names without suffixes.
@@ -3181,6 +3221,7 @@
 }
 
 func TestExcludeRuntimeLibs(t *testing.T) {
+	t.Parallel()
 	ctx := testCc(t, runtimeLibAndroidBp)
 
 	variant := "android_arm64_armv8-a_shared"
@@ -3193,6 +3234,7 @@
 }
 
 func TestRuntimeLibsNoVndk(t *testing.T) {
+	t.Parallel()
 	ctx := testCcNoVndk(t, runtimeLibAndroidBp)
 
 	// If DeviceVndkVersion is not defined, then runtime_libs are copied as-is.
@@ -3230,6 +3272,7 @@
 `
 
 func TestStaticLibDepExport(t *testing.T) {
+	t.Parallel()
 	ctx := testCc(t, staticLibAndroidBp)
 
 	// Check the shared version of lib2.
@@ -3317,6 +3360,7 @@
 }
 
 func TestCompilerFlags(t *testing.T) {
+	t.Parallel()
 	for _, testCase := range compilerFlagsTestCases {
 		ctx := &mockContext{result: true}
 		CheckBadCompilerFlags(ctx, "", []string{testCase.in})
@@ -3330,6 +3374,7 @@
 }
 
 func TestVendorPublicLibraries(t *testing.T) {
+	t.Parallel()
 	ctx := testCc(t, `
 	cc_library_headers {
 		name: "libvendorpublic_headers",
@@ -3396,6 +3441,7 @@
 }
 
 func TestRecovery(t *testing.T) {
+	t.Parallel()
 	ctx := testCc(t, `
 		cc_library_shared {
 			name: "librecovery",
@@ -3431,6 +3477,7 @@
 }
 
 func TestDataLibsPrebuiltSharedTestLibrary(t *testing.T) {
+	t.Parallel()
 	bp := `
 		cc_prebuilt_test_library_shared {
 			name: "test_lib",
@@ -3477,6 +3524,7 @@
 }
 
 func TestVersionedStubs(t *testing.T) {
+	t.Parallel()
 	ctx := testCc(t, `
 		cc_library_shared {
 			name: "libFoo",
@@ -3541,6 +3589,7 @@
 }
 
 func TestVersioningMacro(t *testing.T) {
+	t.Parallel()
 	for _, tc := range []struct{ moduleName, expected string }{
 		{"libc", "__LIBC_API__"},
 		{"libfoo", "__LIBFOO_API__"},
@@ -3553,6 +3602,7 @@
 }
 
 func TestStaticExecutable(t *testing.T) {
+	t.Parallel()
 	ctx := testCc(t, `
 		cc_binary {
 			name: "static_test",
@@ -3578,6 +3628,7 @@
 }
 
 func TestStaticDepsOrderWithStubs(t *testing.T) {
+	t.Parallel()
 	ctx := testCc(t, `
 		cc_binary {
 			name: "mybin",
@@ -3618,6 +3669,7 @@
 }
 
 func TestErrorsIfAModuleDependsOnDisabled(t *testing.T) {
+	t.Parallel()
 	testCcError(t, `module "libA" .* depends on disabled module "libB"`, `
 		cc_library {
 			name: "libA",
@@ -3638,6 +3690,7 @@
 // Simple smoke test for the cc_fuzz target that ensures the rule compiles
 // correctly.
 func TestFuzzTarget(t *testing.T) {
+	t.Parallel()
 	ctx := testCc(t, `
 		cc_fuzz {
 			name: "fuzz_smoke_test",
@@ -3649,6 +3702,7 @@
 }
 
 func TestAidl(t *testing.T) {
+	t.Parallel()
 }
 
 func assertString(t *testing.T, got, expected string) {
@@ -3679,6 +3733,7 @@
 }
 
 func TestDefaults(t *testing.T) {
+	t.Parallel()
 	ctx := testCc(t, `
 		cc_defaults {
 			name: "defaults",
@@ -3743,6 +3798,7 @@
 }
 
 func TestProductVariableDefaults(t *testing.T) {
+	t.Parallel()
 	bp := `
 		cc_defaults {
 			name: "libfoo_defaults",
diff --git a/cc/compiler_test.go b/cc/compiler_test.go
index c301388..cf553bd 100644
--- a/cc/compiler_test.go
+++ b/cc/compiler_test.go
@@ -19,6 +19,7 @@
 )
 
 func TestIsThirdParty(t *testing.T) {
+	t.Parallel()
 	shouldFail := []string{
 		"external/foo/",
 		"vendor/bar/",
diff --git a/cc/config/global.go b/cc/config/global.go
index d4c6266..97e423a 100644
--- a/cc/config/global.go
+++ b/cc/config/global.go
@@ -205,6 +205,7 @@
 	pctx.PrefixedExistentPathsForSourcesVariable("CommonGlobalIncludes", "-I",
 		[]string{
 			"system/core/include",
+			"system/core/liblog/include",
 			"system/media/audio/include",
 			"hardware/libhardware/include",
 			"hardware/libhardware_legacy/include",
diff --git a/cc/config/tidy_test.go b/cc/config/tidy_test.go
index 4ed8b23..3ea2f6b 100644
--- a/cc/config/tidy_test.go
+++ b/cc/config/tidy_test.go
@@ -19,6 +19,7 @@
 )
 
 func TestTidyChecksForDir(t *testing.T) {
+	t.Parallel()
 	testCases := []struct {
 		input    string
 		expected string
diff --git a/cc/gen_test.go b/cc/gen_test.go
index 4b9a36e..ee89873 100644
--- a/cc/gen_test.go
+++ b/cc/gen_test.go
@@ -21,6 +21,7 @@
 )
 
 func TestGen(t *testing.T) {
+	t.Parallel()
 	t.Run("simple", func(t *testing.T) {
 		ctx := testCc(t, `
 		cc_library_shared {
diff --git a/cc/genrule_test.go b/cc/genrule_test.go
index a366f76..6623d20 100644
--- a/cc/genrule_test.go
+++ b/cc/genrule_test.go
@@ -30,6 +30,7 @@
 }
 
 func TestArchGenruleCmd(t *testing.T) {
+	t.Parallel()
 	fs := map[string][]byte{
 		"tool": nil,
 		"foo":  nil,
@@ -78,6 +79,7 @@
 }
 
 func TestLibraryGenruleCmd(t *testing.T) {
+	t.Parallel()
 	bp := `
 		cc_library {
 			name: "libboth",
diff --git a/cc/library.go b/cc/library.go
index b5bec95..35828aa 100644
--- a/cc/library.go
+++ b/cc/library.go
@@ -1231,18 +1231,19 @@
 					library.baseInstaller.subDir += "-" + vndkVersion
 				}
 			}
-		} else if len(library.Properties.Stubs.Versions) > 0 && android.DirectlyInAnyApex(ctx, ctx.ModuleName()) {
+		} else if len(library.Properties.Stubs.Versions) > 0 && !ctx.Host() && ctx.directlyInAnyApex() {
 			// Bionic libraries (e.g. libc.so) is installed to the bootstrap subdirectory.
 			// The original path becomes a symlink to the corresponding file in the
 			// runtime APEX.
 			translatedArch := ctx.Target().NativeBridge == android.NativeBridgeEnabled
-			if InstallToBootstrap(ctx.baseModuleName(), ctx.Config()) && !library.buildStubs() && !translatedArch && !ctx.inRamdisk() && !ctx.inRecovery() {
+			if InstallToBootstrap(ctx.baseModuleName(), ctx.Config()) && !library.buildStubs() &&
+				!translatedArch && !ctx.inRamdisk() && !ctx.inRecovery() {
 				if ctx.Device() {
 					library.installSymlinkToRuntimeApex(ctx, file)
 				}
 				library.baseInstaller.subDir = "bootstrap"
 			}
-		} else if android.DirectlyInAnyApex(ctx, ctx.ModuleName()) && ctx.isLlndk(ctx.Config()) && !isBionic(ctx.baseModuleName()) {
+		} else if ctx.directlyInAnyApex() && ctx.isLlndk(ctx.Config()) && !isBionic(ctx.baseModuleName()) {
 			// Skip installing LLNDK (non-bionic) libraries moved to APEX.
 			ctx.Module().SkipInstall()
 		}
@@ -1531,6 +1532,8 @@
 		if variants[i] != "" {
 			m.(LinkableInterface).SetBuildStubs()
 			m.(LinkableInterface).SetStubsVersion(variants[i])
+			// The stubs depend on the implementation
+			mctx.AddInterVariantDependency(stubImplDepTag, modules[i], modules[0])
 		}
 	}
 	mctx.AliasVariation("")
diff --git a/cc/library_headers_test.go b/cc/library_headers_test.go
index 564ef61..db42d25 100644
--- a/cc/library_headers_test.go
+++ b/cc/library_headers_test.go
@@ -20,6 +20,7 @@
 )
 
 func TestLibraryHeaders(t *testing.T) {
+	t.Parallel()
 	ctx := testCc(t, `
 	cc_library_headers {
 		name: "headers",
@@ -41,6 +42,7 @@
 }
 
 func TestPrebuiltLibraryHeaders(t *testing.T) {
+	t.Parallel()
 	ctx := testCc(t, `
 	cc_prebuilt_library_headers {
 		name: "headers",
diff --git a/cc/library_test.go b/cc/library_test.go
index 49838b4..d42f0733 100644
--- a/cc/library_test.go
+++ b/cc/library_test.go
@@ -22,6 +22,7 @@
 )
 
 func TestLibraryReuse(t *testing.T) {
+	t.Parallel()
 	t.Run("simple", func(t *testing.T) {
 		ctx := testCc(t, `
 		cc_library {
@@ -190,6 +191,7 @@
 }
 
 func TestStubsVersions(t *testing.T) {
+	t.Parallel()
 	bp := `
 		cc_library {
 			name: "libfoo",
@@ -213,6 +215,7 @@
 }
 
 func TestStubsVersions_NotSorted(t *testing.T) {
+	t.Parallel()
 	bp := `
 		cc_library {
 			name: "libfoo",
@@ -228,6 +231,7 @@
 }
 
 func TestStubsVersions_ParseError(t *testing.T) {
+	t.Parallel()
 	bp := `
 		cc_library {
 			name: "libfoo",
diff --git a/cc/llndk_library.go b/cc/llndk_library.go
index b3f9d61..a429063 100644
--- a/cc/llndk_library.go
+++ b/cc/llndk_library.go
@@ -74,6 +74,8 @@
 
 	exportHeadersTimestamp android.OptionalPath
 	versionScriptPath      android.ModuleGenPath
+
+	movedToApex bool
 }
 
 func (stub *llndkStubDecorator) compilerFlags(ctx ModuleContext, flags Flags, deps PathDeps) Flags {
@@ -135,6 +137,11 @@
 func (stub *llndkStubDecorator) link(ctx ModuleContext, flags Flags, deps PathDeps,
 	objs Objects) android.Path {
 
+	impl := ctx.GetDirectDepWithTag(ctx.baseModuleName(), llndkImplDep)
+	if implApexModule, ok := impl.(android.ApexModule); ok {
+		stub.movedToApex = implApexModule.DirectlyInAnyApex()
+	}
+
 	if !Bool(stub.Properties.Unversioned) {
 		linkerScriptFlag := "-Wl,--version-script," + stub.versionScriptPath.String()
 		flags.Local.LdFlags = append(flags.Local.LdFlags, linkerScriptFlag)
diff --git a/cc/object_test.go b/cc/object_test.go
index 6ff8a00..a006044 100644
--- a/cc/object_test.go
+++ b/cc/object_test.go
@@ -19,6 +19,7 @@
 )
 
 func TestLinkerScript(t *testing.T) {
+	t.Parallel()
 	t.Run("script", func(t *testing.T) {
 		testCc(t, `
 		cc_object {
diff --git a/cc/prebuilt_test.go b/cc/prebuilt_test.go
index 52416ac..afae261 100644
--- a/cc/prebuilt_test.go
+++ b/cc/prebuilt_test.go
@@ -43,6 +43,7 @@
 }
 
 func TestPrebuilt(t *testing.T) {
+	t.Parallel()
 	bp := `
 		cc_library {
 			name: "liba",
@@ -172,6 +173,7 @@
 }
 
 func TestPrebuiltLibraryShared(t *testing.T) {
+	t.Parallel()
 	ctx := testPrebuilt(t, `
 	cc_prebuilt_library_shared {
 		name: "libtest",
@@ -189,6 +191,7 @@
 }
 
 func TestPrebuiltLibraryStatic(t *testing.T) {
+	t.Parallel()
 	ctx := testPrebuilt(t, `
 	cc_prebuilt_library_static {
 		name: "libtest",
@@ -203,6 +206,7 @@
 }
 
 func TestPrebuiltLibrary(t *testing.T) {
+	t.Parallel()
 	ctx := testPrebuilt(t, `
 	cc_prebuilt_library {
 		name: "libtest",
@@ -229,6 +233,7 @@
 }
 
 func TestPrebuiltLibraryStem(t *testing.T) {
+	t.Parallel()
 	ctx := testPrebuilt(t, `
 	cc_prebuilt_library {
 		name: "libfoo",
@@ -256,6 +261,7 @@
 }
 
 func TestPrebuiltLibrarySharedStem(t *testing.T) {
+	t.Parallel()
 	ctx := testPrebuilt(t, `
 	cc_prebuilt_library_shared {
 		name: "libfoo",
@@ -274,6 +280,7 @@
 }
 
 func TestPrebuiltSymlinkedHostBinary(t *testing.T) {
+	t.Parallel()
 	if android.BuildOs != android.Linux {
 		t.Skipf("Skipping host prebuilt testing that is only supported on %s not %s", android.Linux, android.BuildOs)
 	}
diff --git a/cc/proto_test.go b/cc/proto_test.go
index f8bbd26..2d059eb 100644
--- a/cc/proto_test.go
+++ b/cc/proto_test.go
@@ -22,6 +22,7 @@
 )
 
 func TestProto(t *testing.T) {
+	t.Parallel()
 	t.Run("simple", func(t *testing.T) {
 		ctx := testCc(t, `
 		cc_library_shared {
diff --git a/cc/sdk_test.go b/cc/sdk_test.go
index 5a3c181..7b9867c 100644
--- a/cc/sdk_test.go
+++ b/cc/sdk_test.go
@@ -21,6 +21,7 @@
 )
 
 func TestSdkMutator(t *testing.T) {
+	t.Parallel()
 	bp := `
 		cc_library {
 			name: "libsdk",
diff --git a/cc/snapshot_utils.go b/cc/snapshot_utils.go
index f27d166..b72af44 100644
--- a/cc/snapshot_utils.go
+++ b/cc/snapshot_utils.go
@@ -58,10 +58,10 @@
 	return snapshot, found
 }
 
-func isSnapshotAware(ctx android.ModuleContext, m *Module) bool {
-	if _, _, ok := isVndkSnapshotLibrary(ctx.DeviceConfig(), m); ok {
+func isSnapshotAware(ctx android.ModuleContext, m *Module, apexInfo android.ApexInfo) bool {
+	if _, _, ok := isVndkSnapshotLibrary(ctx.DeviceConfig(), m, apexInfo); ok {
 		return ctx.Config().VndkSnapshotBuildArtifacts()
-	} else if isVendorSnapshotModule(m, isVendorProprietaryPath(ctx.ModuleDir())) {
+	} else if isVendorSnapshotModule(m, isVendorProprietaryPath(ctx.ModuleDir()), apexInfo) {
 		return true
 	}
 	return false
diff --git a/cc/test_data_test.go b/cc/test_data_test.go
index ae59e2f..7908aa0 100644
--- a/cc/test_data_test.go
+++ b/cc/test_data_test.go
@@ -109,6 +109,7 @@
 }
 
 func TestDataTests(t *testing.T) {
+	t.Parallel()
 	buildDir, err := ioutil.TempDir("", "soong_test_test")
 	if err != nil {
 		t.Fatal(err)
diff --git a/cc/vendor_snapshot.go b/cc/vendor_snapshot.go
index 2819f49..529ed60 100644
--- a/cc/vendor_snapshot.go
+++ b/cc/vendor_snapshot.go
@@ -537,7 +537,7 @@
 // AOSP. They are not guaranteed to be compatible with older vendor images. (e.g. might
 // depend on newer VNDK) So they are captured as vendor snapshot To build older vendor
 // image and newer system image altogether.
-func isVendorSnapshotModule(m *Module, inVendorProprietaryPath bool) bool {
+func isVendorSnapshotModule(m *Module, inVendorProprietaryPath bool, apexInfo android.ApexInfo) bool {
 	if !m.Enabled() || m.Properties.HideFromMake {
 		return false
 	}
@@ -562,7 +562,7 @@
 		return false
 	}
 	// the module must be installed in /vendor
-	if !m.IsForPlatform() || m.isSnapshotPrebuilt() || !m.inVendor() {
+	if !apexInfo.IsForPlatform() || m.isSnapshotPrebuilt() || !m.inVendor() {
 		return false
 	}
 	// skip kernel_headers which always depend on vendor
@@ -825,6 +825,7 @@
 
 		moduleDir := ctx.ModuleDir(module)
 		inVendorProprietaryPath := isVendorProprietaryPath(moduleDir)
+		apexInfo := ctx.ModuleProvider(module, android.ApexInfoProvider).(android.ApexInfo)
 
 		if m.ExcludeFromVendorSnapshot() {
 			if inVendorProprietaryPath {
@@ -842,7 +843,7 @@
 			}
 		}
 
-		if !isVendorSnapshotModule(m, inVendorProprietaryPath) {
+		if !isVendorSnapshotModule(m, inVendorProprietaryPath, apexInfo) {
 			return
 		}
 
diff --git a/cc/vndk.go b/cc/vndk.go
index 9a2fa09..4169e21 100644
--- a/cc/vndk.go
+++ b/cc/vndk.go
@@ -300,6 +300,7 @@
 	if !Bool(lib.Properties.Vendor_available) {
 		vndkPrivateLibraries(mctx.Config())[name] = filename
 	}
+
 	if mctx.OtherModuleExists(name) {
 		mctx.AddFarVariationDependencies(m.Target().Variations(), llndkImplDep, name)
 	}
@@ -533,11 +534,13 @@
 	vndkSnapshotZipFile android.OptionalPath
 }
 
-func isVndkSnapshotLibrary(config android.DeviceConfig, m *Module) (i snapshotLibraryInterface, vndkType string, isVndkSnapshotLib bool) {
+func isVndkSnapshotLibrary(config android.DeviceConfig, m *Module,
+	apexInfo android.ApexInfo) (i snapshotLibraryInterface, vndkType string, isVndkSnapshotLib bool) {
+
 	if m.Target().NativeBridge == android.NativeBridgeEnabled {
 		return nil, "", false
 	}
-	if !m.inVendor() || !m.installable() || m.isSnapshotPrebuilt() {
+	if !m.inVendor() || !m.installable(apexInfo) || m.isSnapshotPrebuilt() {
 		return nil, "", false
 	}
 	l, ok := m.linker.(snapshotLibraryInterface)
@@ -659,7 +662,9 @@
 			return
 		}
 
-		l, vndkType, ok := isVndkSnapshotLibrary(ctx.DeviceConfig(), m)
+		apexInfo := ctx.ModuleProvider(module, android.ApexInfoProvider).(android.ApexInfo)
+
+		l, vndkType, ok := isVndkSnapshotLibrary(ctx.DeviceConfig(), m, apexInfo)
 		if !ok {
 			return
 		}
@@ -823,14 +828,21 @@
 func (c *vndkSnapshotSingleton) MakeVars(ctx android.MakeVarsContext) {
 	// Make uses LLNDK_MOVED_TO_APEX_LIBRARIES to avoid installing libraries on /system if
 	// they been moved to an apex.
-	movedToApexLlndkLibraries := []string{}
-	for lib := range llndkLibraries(ctx.Config()) {
-		// Skip bionic libs, they are handled in different manner
-		if android.DirectlyInAnyApex(&notOnHostContext{}, lib) && !isBionic(lib) {
-			movedToApexLlndkLibraries = append(movedToApexLlndkLibraries, lib)
+	movedToApexLlndkLibraries := make(map[string]bool)
+	ctx.VisitAllModules(func(module android.Module) {
+		if m, ok := module.(*Module); ok {
+			if llndk, ok := m.linker.(*llndkStubDecorator); ok {
+				// Skip bionic libs, they are handled in different manner
+				name := m.BaseModuleName()
+				if llndk.movedToApex && !isBionic(m.BaseModuleName()) {
+					movedToApexLlndkLibraries[name] = true
+				}
+			}
 		}
-	}
-	ctx.Strict("LLNDK_MOVED_TO_APEX_LIBRARIES", strings.Join(movedToApexLlndkLibraries, " "))
+	})
+
+	ctx.Strict("LLNDK_MOVED_TO_APEX_LIBRARIES",
+		strings.Join(android.SortedStringKeys(movedToApexLlndkLibraries), " "))
 
 	// Make uses LLNDK_LIBRARIES to determine which libraries to install.
 	// HWASAN is only part of the LL-NDK in builds in which libc depends on HWASAN.
diff --git a/cmd/diff_target_files/allow_list_test.go b/cmd/diff_target_files/allow_list_test.go
index 8410e5a..9f89657 100644
--- a/cmd/diff_target_files/allow_list_test.go
+++ b/cmd/diff_target_files/allow_list_test.go
@@ -58,6 +58,7 @@
 var f2 = bytesToZipArtifactFile("dir/f2", nil)
 
 func Test_applyAllowLists(t *testing.T) {
+	t.Parallel()
 	type args struct {
 		diff       zipDiff
 		allowLists []allowList
diff --git a/cmd/diff_target_files/compare_test.go b/cmd/diff_target_files/compare_test.go
index 9d3f8a5..7621246 100644
--- a/cmd/diff_target_files/compare_test.go
+++ b/cmd/diff_target_files/compare_test.go
@@ -21,6 +21,7 @@
 )
 
 func TestDiffTargetFilesLists(t *testing.T) {
+	t.Parallel()
 	zipArtifactFile := func(name string, crc32 uint32, size uint64) *ZipArtifactFile {
 		return &ZipArtifactFile{
 			File: &zip.File{
diff --git a/cmd/diff_target_files/glob_test.go b/cmd/diff_target_files/glob_test.go
index 63df68d..f2c6c6a 100644
--- a/cmd/diff_target_files/glob_test.go
+++ b/cmd/diff_target_files/glob_test.go
@@ -19,6 +19,7 @@
 )
 
 func TestMatch(t *testing.T) {
+	t.Parallel()
 	testCases := []struct {
 		pattern, name string
 		match         bool
diff --git a/cmd/extract_apks/main_test.go b/cmd/extract_apks/main_test.go
index c3e6a2d..40f3882 100644
--- a/cmd/extract_apks/main_test.go
+++ b/cmd/extract_apks/main_test.go
@@ -37,6 +37,7 @@
 }
 
 func TestSelectApks_ApkSet(t *testing.T) {
+	t.Parallel()
 	testCases := []testDesc{
 		{
 			protoText: `
@@ -266,6 +267,7 @@
 }
 
 func TestSelectApks_ApexSet(t *testing.T) {
+	t.Parallel()
 	testCases := []testDesc{
 		{
 			protoText: `
@@ -442,6 +444,7 @@
 }
 
 func TestWriteApks(t *testing.T) {
+	t.Parallel()
 	testCases := []testCaseWriteApks{
 		{
 			name:       "splits",
diff --git a/cmd/extract_linker/main_test.go b/cmd/extract_linker/main_test.go
index 6ac4ec6..4e1ed02 100644
--- a/cmd/extract_linker/main_test.go
+++ b/cmd/extract_linker/main_test.go
@@ -51,6 +51,7 @@
 }
 
 func TestBytesToAsm(t *testing.T) {
+	t.Parallel()
 	for _, testcase := range bytesToAsmTestCases {
 		t.Run(testcase.name, func(t *testing.T) {
 			buf := bytes.Buffer{}
diff --git a/cmd/host_bionic_inject/host_bionic_inject_test.go b/cmd/host_bionic_inject/host_bionic_inject_test.go
index b415b34..ef5120b 100644
--- a/cmd/host_bionic_inject/host_bionic_inject_test.go
+++ b/cmd/host_bionic_inject/host_bionic_inject_test.go
@@ -100,6 +100,7 @@
 }
 
 func TestCheckLinker(t *testing.T) {
+	t.Parallel()
 	cases := []struct {
 		name   string
 		err    error
diff --git a/cmd/javac_wrapper/javac_wrapper_test.go b/cmd/javac_wrapper/javac_wrapper_test.go
index ad23001..a1812fb 100644
--- a/cmd/javac_wrapper/javac_wrapper_test.go
+++ b/cmd/javac_wrapper/javac_wrapper_test.go
@@ -93,6 +93,7 @@
 }
 
 func TestJavacColorize(t *testing.T) {
+	t.Parallel()
 	for i, test := range testCases {
 		t.Run(strconv.Itoa(i), func(t *testing.T) {
 			buf := new(bytes.Buffer)
@@ -110,6 +111,7 @@
 }
 
 func TestSubprocess(t *testing.T) {
+	t.Parallel()
 	t.Run("failure", func(t *testing.T) {
 		exitCode, err := Main(ioutil.Discard, "test", []string{"sh", "-c", "exit 9"})
 		if err != nil {
diff --git a/cmd/merge_zips/merge_zips_test.go b/cmd/merge_zips/merge_zips_test.go
index cb58436..78ffb76 100644
--- a/cmd/merge_zips/merge_zips_test.go
+++ b/cmd/merge_zips/merge_zips_test.go
@@ -85,6 +85,7 @@
 }
 
 func TestMergeZips(t *testing.T) {
+	t.Parallel()
 	testCases := []struct {
 		name             string
 		in               [][]testZipEntry
@@ -361,6 +362,7 @@
 }
 
 func TestInputZipsManager(t *testing.T) {
+	t.Parallel()
 	const nInputZips = 20
 	const nMaxOpenZips = 10
 	izm := NewInputZipsManager(20, 10)
diff --git a/cmd/multiproduct_kati/main_test.go b/cmd/multiproduct_kati/main_test.go
index 263a124..e3ddfd7 100644
--- a/cmd/multiproduct_kati/main_test.go
+++ b/cmd/multiproduct_kati/main_test.go
@@ -21,6 +21,7 @@
 )
 
 func TestSplitList(t *testing.T) {
+	t.Parallel()
 	testcases := []struct {
 		inputCount int
 		shardCount int
diff --git a/cmd/path_interposer/main_test.go b/cmd/path_interposer/main_test.go
index c89d623..3f1a5e1 100644
--- a/cmd/path_interposer/main_test.go
+++ b/cmd/path_interposer/main_test.go
@@ -61,6 +61,7 @@
 }
 
 func TestInterposer(t *testing.T) {
+	t.Parallel()
 	interposer := setup(t)
 
 	logConfig := func(name string) paths.PathConfig {
@@ -180,6 +181,7 @@
 }
 
 func TestMissingPath(t *testing.T) {
+	t.Parallel()
 	interposer := setup(t)
 	err := os.Remove(interposer + "_origpath")
 	if err != nil {
diff --git a/cmd/soong_build/bazel_overlay_test.go b/cmd/soong_build/bazel_overlay_test.go
index f0c8515..ceb342f 100644
--- a/cmd/soong_build/bazel_overlay_test.go
+++ b/cmd/soong_build/bazel_overlay_test.go
@@ -64,6 +64,7 @@
 }
 
 func TestGenerateBazelOverlayFromBlueprint(t *testing.T) {
+	t.Parallel()
 	testCases := []struct {
 		bp                  string
 		expectedBazelTarget string
diff --git a/cmd/zip2zip/zip2zip_test.go b/cmd/zip2zip/zip2zip_test.go
index 2c4e005..e6ac0bf 100644
--- a/cmd/zip2zip/zip2zip_test.go
+++ b/cmd/zip2zip/zip2zip_test.go
@@ -416,6 +416,7 @@
 }
 
 func TestZip2Zip(t *testing.T) {
+	t.Parallel()
 	for _, testCase := range testCases {
 		t.Run(testCase.name, func(t *testing.T) {
 			inputBuf := &bytes.Buffer{}
@@ -472,6 +473,7 @@
 }
 
 func TestConstantPartOfPattern(t *testing.T) {
+	t.Parallel()
 	testCases := []struct{ in, out string }{
 		{
 			in:  "",
diff --git a/dexpreopt/dexpreopt.go b/dexpreopt/dexpreopt.go
index 4dbda49..814b75d 100644
--- a/dexpreopt/dexpreopt.go
+++ b/dexpreopt/dexpreopt.go
@@ -218,13 +218,21 @@
 	return m[sdkVer]
 }
 
-func (m classLoaderContextMap) addLibs(sdkVer int, module *ModuleConfig, libs ...string) bool {
+func (m classLoaderContextMap) addLibs(ctx android.PathContext, sdkVer int, module *ModuleConfig, libs ...string) bool {
 	clc := m.getValue(sdkVer)
 	for _, lib := range libs {
-		if p := pathForLibrary(module, lib); p != nil {
+		if p, ok := module.LibraryPaths[lib]; ok && p.Host != nil && p.Device != UnknownInstallLibraryPath {
 			clc.Host = append(clc.Host, p.Host)
 			clc.Target = append(clc.Target, p.Device)
 		} else {
+			if sdkVer == anySdkVersion {
+				// Fail the build if dexpreopt doesn't know paths to one of the <uses-library>
+				// dependencies. In the future we may need to relax this and just disable dexpreopt.
+				android.ReportPathErrorf(ctx, "dexpreopt cannot find path for <uses-library> '%s'", lib)
+			} else {
+				// No error for compatibility libraries, as Soong doesn't know if they are needed
+				// (this depends on the targetSdkVersion in the manifest).
+			}
 			return false
 		}
 	}
@@ -270,14 +278,14 @@
 	} else if module.EnforceUsesLibraries {
 		// Unconditional class loader context.
 		usesLibs := append(copyOf(module.UsesLibraries), module.OptionalUsesLibraries...)
-		if !classLoaderContexts.addLibs(anySdkVersion, module, usesLibs...) {
+		if !classLoaderContexts.addLibs(ctx, anySdkVersion, module, usesLibs...) {
 			return nil
 		}
 
 		// Conditional class loader context for API version < 28.
 		const httpLegacy = "org.apache.http.legacy"
 		if !contains(usesLibs, httpLegacy) {
-			if !classLoaderContexts.addLibs(28, module, httpLegacy) {
+			if !classLoaderContexts.addLibs(ctx, 28, module, httpLegacy) {
 				return nil
 			}
 		}
@@ -287,14 +295,14 @@
 			"android.hidl.base-V1.0-java",
 			"android.hidl.manager-V1.0-java",
 		}
-		if !classLoaderContexts.addLibs(29, module, usesLibs29...) {
+		if !classLoaderContexts.addLibs(ctx, 29, module, usesLibs29...) {
 			return nil
 		}
 
 		// Conditional class loader context for API version < 30.
 		const testBase = "android.test.base"
 		if !contains(usesLibs, testBase) {
-			if !classLoaderContexts.addLibs(30, module, testBase) {
+			if !classLoaderContexts.addLibs(ctx, 30, module, testBase) {
 				return nil
 			}
 		}
@@ -589,14 +597,6 @@
 	return filepath.Join(filepath.Dir(filepath.Dir(path.String())), filepath.Base(path.String()))
 }
 
-func pathForLibrary(module *ModuleConfig, lib string) *LibraryPath {
-	if path, ok := module.LibraryPaths[lib]; ok && path.Host != nil && path.Device != "error" {
-		return path
-	} else {
-		return nil
-	}
-}
-
 func makefileMatch(pattern, s string) bool {
 	percent := strings.IndexByte(pattern, '%')
 	switch percent {
diff --git a/dexpreopt/dexpreopt_test.go b/dexpreopt/dexpreopt_test.go
index ec31549..1fbd7f1 100644
--- a/dexpreopt/dexpreopt_test.go
+++ b/dexpreopt/dexpreopt_test.go
@@ -61,6 +61,7 @@
 }
 
 func TestDexPreopt(t *testing.T) {
+	t.Parallel()
 	config := android.TestConfig("out", nil, "", nil)
 	ctx := android.PathContextForTesting(config)
 	globalSoong := GlobalSoongConfigForTests(config)
@@ -83,6 +84,7 @@
 }
 
 func TestDexPreoptSystemOther(t *testing.T) {
+	t.Parallel()
 	config := android.TestConfig("out", nil, "", nil)
 	ctx := android.PathContextForTesting(config)
 	globalSoong := GlobalSoongConfigForTests(config)
@@ -143,6 +145,7 @@
 }
 
 func TestDexPreoptProfile(t *testing.T) {
+	t.Parallel()
 	config := android.TestConfig("out", nil, "", nil)
 	ctx := android.PathContextForTesting(config)
 	globalSoong := GlobalSoongConfigForTests(config)
diff --git a/etc/prebuilt_etc_test.go b/etc/prebuilt_etc_test.go
index 8fc36c2..528c484 100644
--- a/etc/prebuilt_etc_test.go
+++ b/etc/prebuilt_etc_test.go
@@ -102,6 +102,7 @@
 	t.Fatalf("missing expected error %q (0 errors are returned)", pattern)
 }
 func TestPrebuiltEtcVariants(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testPrebuiltEtc(t, `
 		prebuilt_etc {
 			name: "foo.conf",
@@ -136,6 +137,7 @@
 }
 
 func TestPrebuiltEtcOutputPath(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testPrebuiltEtc(t, `
 		prebuilt_etc {
 			name: "foo.conf",
@@ -151,6 +153,7 @@
 }
 
 func TestPrebuiltEtcGlob(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testPrebuiltEtc(t, `
 		prebuilt_etc {
 			name: "my_foo",
@@ -175,6 +178,7 @@
 }
 
 func TestPrebuiltEtcAndroidMk(t *testing.T) {
+	t.Parallel()
 	ctx, config := testPrebuiltEtc(t, `
 		prebuilt_etc {
 			name: "foo",
@@ -211,6 +215,7 @@
 }
 
 func TestPrebuiltEtcRelativeInstallPathInstallDirPath(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testPrebuiltEtc(t, `
 		prebuilt_etc {
 			name: "foo.conf",
@@ -227,6 +232,7 @@
 }
 
 func TestPrebuiltEtcCannotSetRelativeInstallPathAndSubDir(t *testing.T) {
+	t.Parallel()
 	testPrebuiltEtcError(t, "relative_install_path is set. Cannot set sub_dir", `
 		prebuilt_etc {
 			name: "foo.conf",
@@ -238,6 +244,7 @@
 }
 
 func TestPrebuiltEtcHost(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testPrebuiltEtc(t, `
 		prebuilt_etc_host {
 			name: "foo.conf",
@@ -253,6 +260,7 @@
 }
 
 func TestPrebuiltUserShareInstallDirPath(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testPrebuiltEtc(t, `
 		prebuilt_usr_share {
 			name: "foo.conf",
@@ -269,6 +277,7 @@
 }
 
 func TestPrebuiltUserShareHostInstallDirPath(t *testing.T) {
+	t.Parallel()
 	ctx, config := testPrebuiltEtc(t, `
 		prebuilt_usr_share_host {
 			name: "foo.conf",
@@ -286,6 +295,7 @@
 }
 
 func TestPrebuiltFontInstallDirPath(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testPrebuiltEtc(t, `
 		prebuilt_font {
 			name: "foo.conf",
@@ -301,6 +311,7 @@
 }
 
 func TestPrebuiltFirmwareDirPath(t *testing.T) {
+	t.Parallel()
 	targetPath := buildDir + "/target/product/test_device"
 	tests := []struct {
 		description  string
@@ -337,6 +348,7 @@
 }
 
 func TestPrebuiltDSPDirPath(t *testing.T) {
+	t.Parallel()
 	targetPath := filepath.Join(buildDir, "/target/product/test_device")
 	tests := []struct {
 		description  string
diff --git a/finder/finder_test.go b/finder/finder_test.go
index 88b0c05..029c80f 100644
--- a/finder/finder_test.go
+++ b/finder/finder_test.go
@@ -122,6 +122,7 @@
 // end of utils, start of individual tests
 
 func TestSingleFile(t *testing.T) {
+	t.Parallel()
 	runSimpleTest(t,
 		[]string{"findme.txt"},
 		[]string{"findme.txt"},
@@ -129,6 +130,7 @@
 }
 
 func TestIncludeFiles(t *testing.T) {
+	t.Parallel()
 	runSimpleTest(t,
 		[]string{"findme.txt", "skipme.txt"},
 		[]string{"findme.txt"},
@@ -136,6 +138,7 @@
 }
 
 func TestNestedDirectories(t *testing.T) {
+	t.Parallel()
 	runSimpleTest(t,
 		[]string{"findme.txt", "skipme.txt", "subdir/findme.txt", "subdir/skipme.txt"},
 		[]string{"findme.txt", "subdir/findme.txt"},
@@ -143,6 +146,7 @@
 }
 
 func TestEmptyDirectory(t *testing.T) {
+	t.Parallel()
 	runSimpleTest(t,
 		[]string{},
 		[]string{},
@@ -150,6 +154,7 @@
 }
 
 func TestEmptyPath(t *testing.T) {
+	t.Parallel()
 	filesystem := newFs()
 	root := "/tmp"
 	fs.Create(t, filepath.Join(root, "findme.txt"), filesystem)
@@ -170,6 +175,7 @@
 }
 
 func TestFilesystemRoot(t *testing.T) {
+	t.Parallel()
 
 	testWithNumThreads := func(t *testing.T, numThreads int) {
 		filesystem := newFs()
@@ -197,6 +203,7 @@
 }
 
 func TestNonexistentDir(t *testing.T) {
+	t.Parallel()
 	filesystem := newFs()
 	fs.Create(t, "/tmp/findme.txt", filesystem)
 
@@ -215,6 +222,7 @@
 }
 
 func TestExcludeDirs(t *testing.T) {
+	t.Parallel()
 	filesystem := newFs()
 	fs.Create(t, "/tmp/exclude/findme.txt", filesystem)
 	fs.Create(t, "/tmp/exclude/subdir/findme.txt", filesystem)
@@ -243,6 +251,7 @@
 }
 
 func TestPruneFiles(t *testing.T) {
+	t.Parallel()
 	filesystem := newFs()
 	fs.Create(t, "/tmp/out/findme.txt", filesystem)
 	fs.Create(t, "/tmp/out/.ignore-out-dir", filesystem)
@@ -275,6 +284,7 @@
 // TestRootDir tests that the value of RootDirs is used
 // tests of the filesystem root are in TestFilesystemRoot
 func TestRootDir(t *testing.T) {
+	t.Parallel()
 	filesystem := newFs()
 	fs.Create(t, "/tmp/a/findme.txt", filesystem)
 	fs.Create(t, "/tmp/a/subdir/findme.txt", filesystem)
@@ -299,6 +309,7 @@
 }
 
 func TestUncachedDir(t *testing.T) {
+	t.Parallel()
 	filesystem := newFs()
 	fs.Create(t, "/tmp/a/findme.txt", filesystem)
 	fs.Create(t, "/tmp/a/subdir/findme.txt", filesystem)
@@ -326,6 +337,7 @@
 }
 
 func TestSearchingForFilesExcludedFromCache(t *testing.T) {
+	t.Parallel()
 	// setup filesystem
 	filesystem := newFs()
 	fs.Create(t, "/tmp/findme.txt", filesystem)
@@ -353,6 +365,7 @@
 }
 
 func TestRelativeFilePaths(t *testing.T) {
+	t.Parallel()
 	filesystem := newFs()
 
 	fs.Create(t, "/tmp/ignore/hi.txt", filesystem)
@@ -397,6 +410,7 @@
 // have to run this test with the race-detector (`go test -race src/android/soong/finder/*.go`)
 // for there to be much chance of the test actually detecting any error that may be present
 func TestRootDirsContainedInOtherRootDirs(t *testing.T) {
+	t.Parallel()
 	filesystem := newFs()
 
 	fs.Create(t, "/tmp/a/b/c/d/e/f/g/h/i/j/findme.txt", filesystem)
@@ -418,6 +432,7 @@
 }
 
 func TestFindFirst(t *testing.T) {
+	t.Parallel()
 	filesystem := newFs()
 	fs.Create(t, "/tmp/a/hi.txt", filesystem)
 	fs.Create(t, "/tmp/b/hi.txt", filesystem)
@@ -442,6 +457,7 @@
 }
 
 func TestConcurrentFindSameDirectory(t *testing.T) {
+	t.Parallel()
 
 	testWithNumThreads := func(t *testing.T, numThreads int) {
 		filesystem := newFs()
@@ -493,6 +509,7 @@
 }
 
 func TestConcurrentFindDifferentDirectories(t *testing.T) {
+	t.Parallel()
 	filesystem := newFs()
 
 	// create a bunch of files and directories
@@ -556,6 +573,7 @@
 }
 
 func TestStrangelyFormattedPaths(t *testing.T) {
+	t.Parallel()
 	filesystem := newFs()
 
 	fs.Create(t, "/tmp/findme.txt", filesystem)
@@ -581,6 +599,7 @@
 }
 
 func TestCorruptedCacheHeader(t *testing.T) {
+	t.Parallel()
 	filesystem := newFs()
 
 	fs.Create(t, "/tmp/findme.txt", filesystem)
@@ -605,6 +624,7 @@
 }
 
 func TestCanUseCache(t *testing.T) {
+	t.Parallel()
 	// setup filesystem
 	filesystem := newFs()
 	fs.Create(t, "/tmp/findme.txt", filesystem)
@@ -651,6 +671,7 @@
 }
 
 func TestCorruptedCacheBody(t *testing.T) {
+	t.Parallel()
 	// setup filesystem
 	filesystem := newFs()
 	fs.Create(t, "/tmp/findme.txt", filesystem)
@@ -715,6 +736,7 @@
 }
 
 func TestStatCalls(t *testing.T) {
+	t.Parallel()
 	// setup filesystem
 	filesystem := newFs()
 	fs.Create(t, "/tmp/a/findme.txt", filesystem)
@@ -738,6 +760,7 @@
 }
 
 func TestFileAdded(t *testing.T) {
+	t.Parallel()
 	// setup filesystem
 	filesystem := newFs()
 	fs.Create(t, "/tmp/ignoreme.txt", filesystem)
@@ -780,6 +803,7 @@
 }
 
 func TestDirectoriesAdded(t *testing.T) {
+	t.Parallel()
 	// setup filesystem
 	filesystem := newFs()
 	fs.Create(t, "/tmp/ignoreme.txt", filesystem)
@@ -824,6 +848,7 @@
 }
 
 func TestDirectoryAndSubdirectoryBothUpdated(t *testing.T) {
+	t.Parallel()
 	// setup filesystem
 	filesystem := newFs()
 	fs.Create(t, "/tmp/hi1.txt", filesystem)
@@ -864,6 +889,7 @@
 }
 
 func TestFileDeleted(t *testing.T) {
+	t.Parallel()
 	// setup filesystem
 	filesystem := newFs()
 	fs.Create(t, "/tmp/ignoreme.txt", filesystem)
@@ -904,6 +930,7 @@
 }
 
 func TestDirectoriesDeleted(t *testing.T) {
+	t.Parallel()
 	// setup filesystem
 	filesystem := newFs()
 	fs.Create(t, "/tmp/findme.txt", filesystem)
@@ -959,6 +986,7 @@
 }
 
 func TestDirectoriesMoved(t *testing.T) {
+	t.Parallel()
 	// setup filesystem
 	filesystem := newFs()
 	fs.Create(t, "/tmp/findme.txt", filesystem)
@@ -1017,6 +1045,7 @@
 }
 
 func TestDirectoriesSwapped(t *testing.T) {
+	t.Parallel()
 	// setup filesystem
 	filesystem := newFs()
 	fs.Create(t, "/tmp/findme.txt", filesystem)
@@ -1132,6 +1161,7 @@
 }
 
 func TestChangeOfDevice(t *testing.T) {
+	t.Parallel()
 	fs1 := newFs()
 	// not as fine-grained mounting controls as a real filesystem, but should be adequate
 	fs1.SetDeviceNumber(0)
@@ -1143,6 +1173,7 @@
 }
 
 func TestChangeOfUserOrHost(t *testing.T) {
+	t.Parallel()
 	fs1 := newFs()
 	fs1.SetViewId("me@here")
 
@@ -1153,6 +1184,7 @@
 }
 
 func TestConsistentCacheOrdering(t *testing.T) {
+	t.Parallel()
 	// setup filesystem
 	filesystem := newFs()
 	for i := 0; i < 5; i++ {
@@ -1205,6 +1237,7 @@
 }
 
 func TestNumSyscallsOfSecondFind(t *testing.T) {
+	t.Parallel()
 	// setup filesystem
 	filesystem := newFs()
 	fs.Create(t, "/tmp/findme.txt", filesystem)
@@ -1235,6 +1268,7 @@
 }
 
 func TestChangingParamsOfSecondFind(t *testing.T) {
+	t.Parallel()
 	// setup filesystem
 	filesystem := newFs()
 	fs.Create(t, "/tmp/findme.txt", filesystem)
@@ -1265,6 +1299,7 @@
 }
 
 func TestSymlinkPointingToFile(t *testing.T) {
+	t.Parallel()
 	// setup filesystem
 	filesystem := newFs()
 	fs.Create(t, "/tmp/a/hi.txt", filesystem)
@@ -1301,6 +1336,7 @@
 }
 
 func TestSymlinkPointingToDirectory(t *testing.T) {
+	t.Parallel()
 	// setup filesystem
 	filesystem := newFs()
 	fs.Create(t, "/tmp/dir/hi.txt", filesystem)
@@ -1335,6 +1371,7 @@
 // TestAddPruneFile confirms that adding a prune-file (into a directory for which we
 // already had a cache) causes the directory to be ignored
 func TestAddPruneFile(t *testing.T) {
+	t.Parallel()
 	// setup filesystem
 	filesystem := newFs()
 	fs.Create(t, "/tmp/out/hi.txt", filesystem)
@@ -1373,6 +1410,7 @@
 }
 
 func TestUpdatingDbIffChanged(t *testing.T) {
+	t.Parallel()
 	// setup filesystem
 	filesystem := newFs()
 	fs.Create(t, "/tmp/a/hi.txt", filesystem)
@@ -1432,6 +1470,7 @@
 }
 
 func TestDirectoryNotPermitted(t *testing.T) {
+	t.Parallel()
 	// setup filesystem
 	filesystem := newFs()
 	fs.Create(t, "/tmp/hi.txt", filesystem)
@@ -1480,6 +1519,7 @@
 }
 
 func TestFileNotPermitted(t *testing.T) {
+	t.Parallel()
 	// setup filesystem
 	filesystem := newFs()
 	fs.Create(t, "/tmp/hi.txt", filesystem)
@@ -1502,6 +1542,7 @@
 }
 
 func TestCacheEntryPathUnexpectedError(t *testing.T) {
+	t.Parallel()
 	// setup filesystem
 	filesystem := newFs()
 	fs.Create(t, "/tmp/a/hi.txt", filesystem)
diff --git a/finder/fs/fs_test.go b/finder/fs/fs_test.go
index 22a4d7a..5671bcf 100644
--- a/finder/fs/fs_test.go
+++ b/finder/fs/fs_test.go
@@ -20,6 +20,7 @@
 )
 
 func TestMockFs_LstatStatSymlinks(t *testing.T) {
+	t.Parallel()
 	// setup filesystem
 	filesystem := NewMockFs(nil)
 	Create(t, "/tmp/realdir/hi.txt", filesystem)
diff --git a/finder/fs/readdir_test.go b/finder/fs/readdir_test.go
index 24a6d18..d133bba 100644
--- a/finder/fs/readdir_test.go
+++ b/finder/fs/readdir_test.go
@@ -22,6 +22,7 @@
 )
 
 func TestParseDirent(t *testing.T) {
+	t.Parallel()
 	testCases := []struct {
 		name string
 		in   []byte
diff --git a/genrule/genrule_test.go b/genrule/genrule_test.go
index 4b36600..66bb221 100644
--- a/genrule/genrule_test.go
+++ b/genrule/genrule_test.go
@@ -125,6 +125,7 @@
 }
 
 func TestGenruleCmd(t *testing.T) {
+	t.Parallel()
 	testcases := []struct {
 		name string
 		prop string
@@ -503,6 +504,7 @@
 }
 
 func TestGenruleHashInputs(t *testing.T) {
+	t.Parallel()
 
 	// The basic idea here is to verify that the sbox command (which is
 	// in the Command field of the generate rule) contains a hash of the
@@ -590,6 +592,7 @@
 }
 
 func TestGenSrcs(t *testing.T) {
+	t.Parallel()
 	testcases := []struct {
 		name string
 		prop string
@@ -682,6 +685,7 @@
 }
 
 func TestGenruleDefaults(t *testing.T) {
+	t.Parallel()
 	bp := `
 				genrule_defaults {
 					name: "gen_defaults1",
diff --git a/jar/jar_test.go b/jar/jar_test.go
index c92011e..f1c799b 100644
--- a/jar/jar_test.go
+++ b/jar/jar_test.go
@@ -21,6 +21,7 @@
 )
 
 func TestGetJavaPackage(t *testing.T) {
+	t.Parallel()
 	type args struct {
 		r   io.Reader
 		src string
@@ -78,6 +79,7 @@
 }
 
 func Test_javaIdentRune(t *testing.T) {
+	t.Parallel()
 	// runes that should be valid anywhere in an identifier
 	validAnywhere := []rune{
 		// letters, $, _
diff --git a/java/aar.go b/java/aar.go
index 9cab0bd..8d2a74a 100644
--- a/java/aar.go
+++ b/java/aar.go
@@ -477,6 +477,8 @@
 	a.aapt.buildActions(ctx, sdkContext(a))
 	a.exportedSdkLibs = a.aapt.sdkLibraries
 
+	a.hideApexVariantFromMake = !ctx.Provider(android.ApexInfoProvider).(android.ApexInfo).IsForPlatform()
+
 	ctx.CheckbuildFile(a.proguardOptionsFile)
 	ctx.CheckbuildFile(a.exportPackage)
 	ctx.CheckbuildFile(a.aaptSrcJar)
@@ -569,6 +571,8 @@
 	manifest              android.WritablePath
 
 	exportedStaticPackages android.Paths
+
+	hideApexVariantFromMake bool
 }
 
 func (a *AARImport) sdkVersion() sdkSpec {
@@ -662,6 +666,8 @@
 		return
 	}
 
+	a.hideApexVariantFromMake = !ctx.Provider(android.ApexInfoProvider).(android.ApexInfo).IsForPlatform()
+
 	aarName := ctx.ModuleName() + ".aar"
 	var aar android.Path
 	aar = android.PathForModuleSrc(ctx, a.properties.Aars[0])
diff --git a/java/androidmk.go b/java/androidmk.go
index 65c44a3..f72ee37 100644
--- a/java/androidmk.go
+++ b/java/androidmk.go
@@ -23,8 +23,7 @@
 
 func (library *Library) AndroidMkEntriesHostDex() android.AndroidMkEntries {
 	hostDexNeeded := Bool(library.deviceProperties.Hostdex) && !library.Host()
-	if !library.IsForPlatform() {
-		// Don't emit hostdex modules from the APEX variants
+	if library.hideApexVariantFromMake {
 		hostDexNeeded = false
 	}
 
@@ -61,22 +60,15 @@
 func (library *Library) AndroidMkEntries() []android.AndroidMkEntries {
 	var entriesList []android.AndroidMkEntries
 
-	mainEntries := android.AndroidMkEntries{Disabled: true}
-
-	// For a java library built for an APEX, we don't need Make module
-	hideFromMake := !library.IsForPlatform()
-	// If not available for platform, don't emit to make.
-	if !library.ApexModuleBase.AvailableFor(android.AvailableToPlatform) {
-		hideFromMake = true
-	}
-	if hideFromMake {
-		// May still need to add some additional dependencies. This will be called
-		// once for the platform variant (even if it is not being used) and once each
-		// for the APEX specific variants. In order to avoid adding the dependency
-		// multiple times only add it for the platform variant.
+	if library.hideApexVariantFromMake {
+		// For a java library built for an APEX we don't need Make module
+		entriesList = append(entriesList, android.AndroidMkEntries{Disabled: true})
+	} else if !library.ApexModuleBase.AvailableFor(android.AvailableToPlatform) {
+		// Platform variant.  If not available for the platform, we don't need Make module.
+		// May still need to add some additional dependencies.
 		checkedModulePaths := library.additionalCheckedModules
-		if library.IsForPlatform() && len(checkedModulePaths) != 0 {
-			mainEntries = android.AndroidMkEntries{
+		if len(checkedModulePaths) != 0 {
+			entriesList = append(entriesList, android.AndroidMkEntries{
 				Class: "FAKE",
 				// Need at least one output file in order for this to take effect.
 				OutputFile: android.OptionalPathForPath(checkedModulePaths[0]),
@@ -86,10 +78,12 @@
 						entries.AddStrings("LOCAL_ADDITIONAL_CHECKED_MODULE", checkedModulePaths.Strings()...)
 					},
 				},
-			}
+			})
+		} else {
+			entriesList = append(entriesList, android.AndroidMkEntries{Disabled: true})
 		}
 	} else {
-		mainEntries = android.AndroidMkEntries{
+		entriesList = append(entriesList, android.AndroidMkEntries{
 			Class:      "JAVA_LIBRARIES",
 			DistFiles:  library.distFiles,
 			OutputFile: android.OptionalPathForPath(library.outputFile),
@@ -134,12 +128,11 @@
 					entries.SetOptionalPaths("LOCAL_SOONG_LINT_REPORTS", library.linter.reports)
 				},
 			},
-		}
+		})
 	}
 
-	hostDexEntries := library.AndroidMkEntriesHostDex()
+	entriesList = append(entriesList, library.AndroidMkEntriesHostDex())
 
-	entriesList = append(entriesList, mainEntries, hostDexEntries)
 	return entriesList
 }
 
@@ -189,7 +182,7 @@
 }
 
 func (prebuilt *Import) AndroidMkEntries() []android.AndroidMkEntries {
-	if !prebuilt.IsForPlatform() || !prebuilt.ContainingSdk().Unversioned() {
+	if prebuilt.hideApexVariantFromMake || !prebuilt.ContainingSdk().Unversioned() {
 		return []android.AndroidMkEntries{android.AndroidMkEntries{
 			Disabled: true,
 		}}
@@ -211,7 +204,7 @@
 }
 
 func (prebuilt *DexImport) AndroidMkEntries() []android.AndroidMkEntries {
-	if !prebuilt.IsForPlatform() {
+	if prebuilt.hideApexVariantFromMake {
 		return []android.AndroidMkEntries{android.AndroidMkEntries{
 			Disabled: true,
 		}}
@@ -239,7 +232,7 @@
 }
 
 func (prebuilt *AARImport) AndroidMkEntries() []android.AndroidMkEntries {
-	if !prebuilt.IsForPlatform() {
+	if prebuilt.hideApexVariantFromMake {
 		return []android.AndroidMkEntries{{
 			Disabled: true,
 		}}
@@ -309,7 +302,7 @@
 }
 
 func (app *AndroidApp) AndroidMkEntries() []android.AndroidMkEntries {
-	if !app.IsForPlatform() || app.appProperties.HideFromMake {
+	if app.hideApexVariantFromMake || app.appProperties.HideFromMake {
 		return []android.AndroidMkEntries{android.AndroidMkEntries{
 			Disabled: true,
 		}}
@@ -458,7 +451,7 @@
 }
 
 func (a *AndroidLibrary) AndroidMkEntries() []android.AndroidMkEntries {
-	if !a.IsForPlatform() {
+	if a.hideApexVariantFromMake {
 		return []android.AndroidMkEntries{{
 			Disabled: true,
 		}}
@@ -638,7 +631,7 @@
 }
 
 func (a *AndroidAppImport) AndroidMkEntries() []android.AndroidMkEntries {
-	if !a.IsForPlatform() {
+	if a.hideApexVariantFromMake {
 		// The non-platform variant is placed inside APEX. No reason to
 		// make it available to Make.
 		return nil
diff --git a/java/androidmk_test.go b/java/androidmk_test.go
index 075b7aa..359d8d7 100644
--- a/java/androidmk_test.go
+++ b/java/androidmk_test.go
@@ -23,6 +23,7 @@
 )
 
 func TestRequired(t *testing.T) {
+	t.Parallel()
 	ctx, config := testJava(t, `
 		java_library {
 			name: "foo",
@@ -42,6 +43,7 @@
 }
 
 func TestHostdex(t *testing.T) {
+	t.Parallel()
 	ctx, config := testJava(t, `
 		java_library {
 			name: "foo",
@@ -72,6 +74,7 @@
 }
 
 func TestHostdexRequired(t *testing.T) {
+	t.Parallel()
 	ctx, config := testJava(t, `
 		java_library {
 			name: "foo",
@@ -103,6 +106,7 @@
 }
 
 func TestHostdexSpecificRequired(t *testing.T) {
+	t.Parallel()
 	ctx, config := testJava(t, `
 		java_library {
 			name: "foo",
@@ -136,6 +140,7 @@
 }
 
 func TestDistWithTag(t *testing.T) {
+	t.Parallel()
 	ctx, config := testJava(t, `
 		java_library {
 			name: "foo_without_tag",
@@ -172,6 +177,7 @@
 }
 
 func TestDistWithDest(t *testing.T) {
+	t.Parallel()
 	ctx, config := testJava(t, `
 		java_library {
 			name: "foo",
@@ -208,6 +214,7 @@
 }
 
 func TestDistsWithAllProperties(t *testing.T) {
+	t.Parallel()
 	ctx, config := testJava(t, `
 		java_library {
 			name: "foo",
@@ -265,6 +272,7 @@
 }
 
 func TestDistsWithTag(t *testing.T) {
+	t.Parallel()
 	ctx, config := testJava(t, `
 		java_library {
 			name: "foo_without_tag",
@@ -312,6 +320,7 @@
 }
 
 func TestJavaSdkLibrary_RequireXmlPermissionFile(t *testing.T) {
+	t.Parallel()
 	ctx, config := testJava(t, `
 		java_sdk_library {
 			name: "foo-shared_library",
diff --git a/java/app.go b/java/app.go
index 13d08b9..c25835c 100755
--- a/java/app.go
+++ b/java/app.go
@@ -480,8 +480,9 @@
 		ctx.PropertyErrorf("min_sdk_version", "invalid value %q: %s", a.minSdkVersion(), err)
 	}
 
+	apexInfo := ctx.Provider(android.ApexInfoProvider).(android.ApexInfo)
 	return (minSdkVersion >= 23 && Bool(a.appProperties.Use_embedded_native_libs)) ||
-		!a.IsForPlatform()
+		!apexInfo.IsForPlatform()
 }
 
 // Returns whether this module should have the dex file stored uncompressed in the APK.
@@ -504,8 +505,9 @@
 }
 
 func (a *AndroidApp) shouldEmbedJnis(ctx android.BaseModuleContext) bool {
+	apexInfo := ctx.Provider(android.ApexInfoProvider).(android.ApexInfo)
 	return ctx.Config().UnbundledBuild() || Bool(a.appProperties.Use_embedded_native_libs) ||
-		!a.IsForPlatform() || a.appProperties.AlwaysPackageNativeLibs
+		!apexInfo.IsForPlatform() || a.appProperties.AlwaysPackageNativeLibs
 }
 
 func generateAaptRenamePackageFlags(packageName string, renameResourcesPackage bool) []string {
@@ -756,6 +758,10 @@
 func (a *AndroidApp) generateAndroidBuildActions(ctx android.ModuleContext) {
 	var apkDeps android.Paths
 
+	if !ctx.Provider(android.ApexInfoProvider).(android.ApexInfo).IsForPlatform() {
+		a.hideApexVariantFromMake = true
+	}
+
 	a.aapt.useEmbeddedNativeLibs = a.useEmbeddedNativeLibs(ctx)
 	a.aapt.useEmbeddedDex = Bool(a.appProperties.Use_embedded_dex)
 
@@ -850,8 +856,10 @@
 	BuildBundleModule(ctx, bundleFile, a.exportPackage, jniJarFile, dexJarFile)
 	a.bundleFile = bundleFile
 
+	apexInfo := ctx.Provider(android.ApexInfoProvider).(android.ApexInfo)
+
 	// Install the app package.
-	if (Bool(a.Module.properties.Installable) || ctx.Host()) && a.IsForPlatform() {
+	if (Bool(a.Module.properties.Installable) || ctx.Host()) && apexInfo.IsForPlatform() {
 		ctx.InstallFile(a.installDir, a.outputFile.Base(), a.outputFile)
 		for _, extra := range a.extraOutputFiles {
 			ctx.InstallFile(a.installDir, extra.Base(), extra)
@@ -979,7 +987,7 @@
 }
 
 func (a *AndroidApp) Updatable() bool {
-	return Bool(a.appProperties.Updatable) || a.ApexModuleBase.Updatable()
+	return Bool(a.appProperties.Updatable)
 }
 
 func (a *AndroidApp) getCertString(ctx android.BaseModuleContext) string {
@@ -1335,6 +1343,8 @@
 	preprocessed bool
 
 	installPath android.InstallPath
+
+	hideApexVariantFromMake bool
 }
 
 type AndroidAppImportProperties struct {
@@ -1481,6 +1491,11 @@
 }
 
 func (a *AndroidAppImport) generateAndroidBuildActions(ctx android.ModuleContext) {
+	apexInfo := ctx.Provider(android.ApexInfoProvider).(android.ApexInfo)
+	if !apexInfo.IsForPlatform() {
+		a.hideApexVariantFromMake = true
+	}
+
 	numCertPropsSet := 0
 	if String(a.properties.Certificate) != "" {
 		numCertPropsSet++
@@ -1569,7 +1584,7 @@
 
 	// TODO: Optionally compress the output apk.
 
-	if a.IsForPlatform() {
+	if apexInfo.IsForPlatform() {
 		a.installPath = ctx.InstallFile(installDir, apkFilename, a.outputFile)
 	}
 
diff --git a/java/app_test.go b/java/app_test.go
index 4347db8..f894379 100644
--- a/java/app_test.go
+++ b/java/app_test.go
@@ -67,6 +67,7 @@
 }
 
 func TestApp(t *testing.T) {
+	t.Parallel()
 	for _, moduleType := range []string{"android_app", "android_library"} {
 		t.Run(moduleType, func(t *testing.T) {
 			ctx := testApp(t, moduleType+` {
@@ -113,6 +114,7 @@
 }
 
 func TestAppSplits(t *testing.T) {
+	t.Parallel()
 	ctx := testApp(t, `
 				android_app {
 					name: "foo",
@@ -142,6 +144,7 @@
 }
 
 func TestAndroidAppSet(t *testing.T) {
+	t.Parallel()
 	ctx, config := testJava(t, `
 		android_app_set {
 			name: "foo",
@@ -170,6 +173,7 @@
 }
 
 func TestAndroidAppSet_Variants(t *testing.T) {
+	t.Parallel()
 	bp := `
 		android_app_set {
 			name: "foo",
@@ -235,6 +239,7 @@
 }
 
 func TestPlatformAPIs(t *testing.T) {
+	t.Parallel()
 	testJava(t, `
 		android_app {
 			name: "foo",
@@ -269,6 +274,7 @@
 }
 
 func TestAndroidAppLinkType(t *testing.T) {
+	t.Parallel()
 	testJava(t, `
 		android_app {
 			name: "foo",
@@ -358,6 +364,7 @@
 }
 
 func TestUpdatableApps(t *testing.T) {
+	t.Parallel()
 	testCases := []struct {
 		name          string
 		bp            string
@@ -479,6 +486,7 @@
 }
 
 func TestUpdatableApps_TransitiveDepsShouldSetMinSdkVersion(t *testing.T) {
+	t.Parallel()
 	testJavaError(t, `module "bar".*: should support min_sdk_version\(29\)`, cc.GatherRequiredDepsForTest(android.Android)+`
 		android_app {
 			name: "foo",
@@ -497,6 +505,7 @@
 }
 
 func TestUpdatableApps_JniLibsShouldShouldSupportMinSdkVersion(t *testing.T) {
+	t.Parallel()
 	testJava(t, cc.GatherRequiredDepsForTest(android.Android)+`
 		android_app {
 			name: "foo",
@@ -517,6 +526,7 @@
 }
 
 func TestUpdatableApps_JniLibShouldBeBuiltAgainstMinSdkVersion(t *testing.T) {
+	t.Parallel()
 	bp := cc.GatherRequiredDepsForTest(android.Android) + `
 		android_app {
 			name: "foo",
@@ -571,6 +581,7 @@
 }
 
 func TestUpdatableApps_ErrorIfJniLibDoesntSupportMinSdkVersion(t *testing.T) {
+	t.Parallel()
 	bp := cc.GatherRequiredDepsForTest(android.Android) + `
 		android_app {
 			name: "foo",
@@ -591,6 +602,7 @@
 }
 
 func TestUpdatableApps_ErrorIfDepSdkVersionIsHigher(t *testing.T) {
+	t.Parallel()
 	bp := cc.GatherRequiredDepsForTest(android.Android) + `
 		android_app {
 			name: "foo",
@@ -620,6 +632,7 @@
 }
 
 func TestResourceDirs(t *testing.T) {
+	t.Parallel()
 	testCases := []struct {
 		name      string
 		prop      string
@@ -679,6 +692,7 @@
 }
 
 func TestLibraryAssets(t *testing.T) {
+	t.Parallel()
 	bp := `
 			android_app {
 				name: "foo",
@@ -780,6 +794,7 @@
 }
 
 func TestAndroidResources(t *testing.T) {
+	t.Parallel()
 	testCases := []struct {
 		name                       string
 		enforceRROTargets          []string
@@ -1070,6 +1085,7 @@
 }
 
 func TestAppSdkVersion(t *testing.T) {
+	t.Parallel()
 	testCases := []struct {
 		name                  string
 		sdkVersion            string
@@ -1152,6 +1168,7 @@
 }
 
 func TestVendorAppSdkVersion(t *testing.T) {
+	t.Parallel()
 	testCases := []struct {
 		name                                  string
 		sdkVersion                            string
@@ -1215,6 +1232,7 @@
 }
 
 func TestJNIABI(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testJava(t, cc.GatherRequiredDepsForTest(android.Android)+`
 		cc_library {
 			name: "libjni",
@@ -1289,6 +1307,7 @@
 }
 
 func TestAppSdkVersionByPartition(t *testing.T) {
+	t.Parallel()
 	testJavaError(t, "sdk_version must have a value when the module is located at vendor or product", `
 		android_app {
 			name: "foo",
@@ -1327,6 +1346,7 @@
 }
 
 func TestJNIPackaging(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testJava(t, cc.GatherRequiredDepsForTest(android.Android)+`
 		cc_library {
 			name: "libjni",
@@ -1418,6 +1438,7 @@
 }
 
 func TestJNISDK(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testJava(t, cc.GatherRequiredDepsForTest(android.Android)+`
 		cc_library {
 			name: "libjni",
@@ -1535,6 +1556,7 @@
 }
 
 func TestCertificates(t *testing.T) {
+	t.Parallel()
 	testCases := []struct {
 		name                string
 		bp                  string
@@ -1655,6 +1677,7 @@
 }
 
 func TestRequestV4SigningFlag(t *testing.T) {
+	t.Parallel()
 	testCases := []struct {
 		name     string
 		bp       string
@@ -1715,6 +1738,7 @@
 }
 
 func TestPackageNameOverride(t *testing.T) {
+	t.Parallel()
 	testCases := []struct {
 		name                string
 		bp                  string
@@ -1780,6 +1804,7 @@
 }
 
 func TestInstrumentationTargetOverridden(t *testing.T) {
+	t.Parallel()
 	bp := `
 		android_app {
 			name: "foo",
@@ -1809,6 +1834,7 @@
 }
 
 func TestOverrideAndroidApp(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testJava(t, `
 		android_app {
 			name: "foo",
@@ -2010,6 +2036,7 @@
 }
 
 func TestOverrideAndroidAppDependency(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testJava(t, `
 		android_app {
 			name: "foo",
@@ -2052,6 +2079,7 @@
 }
 
 func TestOverrideAndroidTest(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testJava(t, `
 		android_app {
 			name: "foo",
@@ -2148,6 +2176,7 @@
 }
 
 func TestAndroidTest_FixTestConfig(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testJava(t, `
 		android_app {
 			name: "foo",
@@ -2229,6 +2258,7 @@
 }
 
 func TestAndroidAppImport(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testJava(t, `
 		android_app_import {
 			name: "foo",
@@ -2258,6 +2288,7 @@
 }
 
 func TestAndroidAppImport_NoDexPreopt(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testJava(t, `
 		android_app_import {
 			name: "foo",
@@ -2279,6 +2310,7 @@
 }
 
 func TestAndroidAppImport_Presigned(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testJava(t, `
 		android_app_import {
 			name: "foo",
@@ -2307,6 +2339,7 @@
 }
 
 func TestAndroidAppImport_SigningLineage(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testJava(t, `
 	  android_app_import {
 			name: "foo",
@@ -2328,6 +2361,7 @@
 }
 
 func TestAndroidAppImport_DefaultDevCert(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testJava(t, `
 		android_app_import {
 			name: "foo",
@@ -2357,6 +2391,7 @@
 }
 
 func TestAndroidAppImport_DpiVariants(t *testing.T) {
+	t.Parallel()
 	bp := `
 		android_app_import {
 			name: "foo",
@@ -2435,6 +2470,7 @@
 }
 
 func TestAndroidAppImport_Filename(t *testing.T) {
+	t.Parallel()
 	ctx, config := testJava(t, `
 		android_app_import {
 			name: "foo",
@@ -2482,6 +2518,7 @@
 }
 
 func TestAndroidAppImport_ArchVariants(t *testing.T) {
+	t.Parallel()
 	// The test config's target arch is ARM64.
 	testCases := []struct {
 		name     string
@@ -2545,6 +2582,7 @@
 }
 
 func TestAndroidTestImport(t *testing.T) {
+	t.Parallel()
 	ctx, config := testJava(t, `
 		android_test_import {
 			name: "foo",
@@ -2573,6 +2611,7 @@
 }
 
 func TestAndroidTestImport_NoJinUncompressForPresigned(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testJava(t, `
 		android_test_import {
 			name: "foo",
@@ -2610,6 +2649,7 @@
 }
 
 func TestAndroidTestImport_Preprocessed(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testJava(t, `
 		android_test_import {
 			name: "foo",
@@ -2646,6 +2686,7 @@
 }
 
 func TestStl(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testJava(t, cc.GatherRequiredDepsForTest(android.Android)+`
 		cc_library {
 			name: "libjni",
@@ -2709,6 +2750,7 @@
 }
 
 func TestUsesLibraries(t *testing.T) {
+	t.Parallel()
 	bp := `
 		java_sdk_library {
 			name: "foo",
@@ -2754,19 +2796,6 @@
 		android_app {
 			name: "app",
 			srcs: ["a.java"],
-			libs: ["qux", "quuz"],
-			static_libs: ["static-runtime-helper"],
-			uses_libs: ["foo"],
-			sdk_version: "current",
-			optional_uses_libs: [
-				"bar",
-				"baz",
-			],
-		}
-
-		android_app {
-			name: "app_with_stub_deps",
-			srcs: ["a.java"],
 			libs: ["qux", "quuz.stubs"],
 			static_libs: ["static-runtime-helper"],
 			uses_libs: ["foo"],
@@ -2797,7 +2826,6 @@
 	run(t, ctx, config)
 
 	app := ctx.ModuleForTests("app", "android_common")
-	appWithStubDeps := ctx.ModuleForTests("app_with_stub_deps", "android_common")
 	prebuilt := ctx.ModuleForTests("prebuilt", "android_common")
 
 	// Test that implicit dependencies on java_sdk_library instances are passed to the manifest.
@@ -2828,7 +2856,7 @@
 		t.Errorf("wanted %q in %q", w, cmd)
 	}
 
-	// Test that all present libraries are preopted, including implicit SDK dependencies
+	// Test that all present libraries are preopted, including implicit SDK dependencies, possibly stubs
 	cmd = app.Rule("dexpreopt").RuleParams.Command
 	w := `--target-classpath-for-sdk any` +
 		` /system/framework/foo.jar` +
@@ -2840,11 +2868,6 @@
 		t.Errorf("wanted %q in %q", w, cmd)
 	}
 
-	// TODO(skvadrik) fix dexpreopt for stub libraries for which the implementation is present
-	if appWithStubDeps.MaybeRule("dexpreopt").RuleParams.Command != "" {
-		t.Errorf("dexpreopt should be disabled for apps with dependencies on stub libraries")
-	}
-
 	cmd = prebuilt.Rule("dexpreopt").RuleParams.Command
 	if w := `--target-classpath-for-sdk any /system/framework/foo.jar:/system/framework/bar.jar`; !strings.Contains(cmd, w) {
 		t.Errorf("wanted %q in %q", w, cmd)
@@ -2852,6 +2875,7 @@
 }
 
 func TestCodelessApp(t *testing.T) {
+	t.Parallel()
 	testCases := []struct {
 		name   string
 		bp     string
@@ -2928,6 +2952,7 @@
 }
 
 func TestEmbedNotice(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testJavaWithFS(t, cc.GatherRequiredDepsForTest(android.Android)+`
 		android_app {
 			name: "foo",
@@ -3037,6 +3062,7 @@
 }
 
 func TestUncompressDex(t *testing.T) {
+	t.Parallel()
 	testCases := []struct {
 		name string
 		bp   string
@@ -3164,6 +3190,7 @@
 }
 
 func TestRuntimeResourceOverlay(t *testing.T) {
+	t.Parallel()
 	fs := map[string][]byte{
 		"baz/res/res/values/strings.xml": nil,
 		"bar/res/res/values/strings.xml": nil,
@@ -3268,6 +3295,7 @@
 }
 
 func TestRuntimeResourceOverlay_JavaDefaults(t *testing.T) {
+	t.Parallel()
 	ctx, config := testJava(t, `
 		java_defaults {
 			name: "rro_defaults",
@@ -3327,6 +3355,7 @@
 }
 
 func TestOverrideRuntimeResourceOverlay(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testJava(t, `
 		runtime_resource_overlay {
 			name: "foo_overlay",
diff --git a/java/device_host_converter_test.go b/java/device_host_converter_test.go
index 3c9a0f3..208ea57 100644
--- a/java/device_host_converter_test.go
+++ b/java/device_host_converter_test.go
@@ -22,6 +22,7 @@
 )
 
 func TestDeviceForHost(t *testing.T) {
+	t.Parallel()
 	bp := `
 		java_library {
 			name: "device_module",
@@ -102,6 +103,7 @@
 }
 
 func TestHostForDevice(t *testing.T) {
+	t.Parallel()
 	bp := `
 		java_library_host {
 			name: "host_module",
diff --git a/java/dexpreopt.go b/java/dexpreopt.go
index f1b7178..20dbc66 100644
--- a/java/dexpreopt.go
+++ b/java/dexpreopt.go
@@ -94,7 +94,7 @@
 	}
 
 	// Don't preopt APEX variant module
-	if am, ok := ctx.Module().(android.ApexModule); ok && !am.IsForPlatform() {
+	if apexInfo := ctx.Provider(android.ApexInfoProvider).(android.ApexInfo); !apexInfo.IsForPlatform() {
 		return true
 	}
 
diff --git a/java/dexpreopt_bootjars.go b/java/dexpreopt_bootjars.go
index 7877031..9f49786 100644
--- a/java/dexpreopt_bootjars.go
+++ b/java/dexpreopt_bootjars.go
@@ -266,12 +266,13 @@
 	}
 
 	// Check that this module satisfies constraints for a particular boot image.
-	apex, isApexModule := module.(android.ApexModule)
-	fromUpdatableApex := isApexModule && apex.Updatable()
+	_, isApexModule := module.(android.ApexModule)
+	apexInfo := ctx.ModuleProvider(module, android.ApexInfoProvider).(android.ApexInfo)
+	fromUpdatableApex := isApexModule && apexInfo.Updatable
 	if image.name == artBootImageName {
-		if isApexModule && len(apex.InApexes()) > 0 && allHavePrefix(apex.InApexes(), "com.android.art.") {
+		if isApexModule && len(apexInfo.InApexes) > 0 && allHavePrefix(apexInfo.InApexes, "com.android.art.") {
 			// ok: found the jar in the ART apex
-		} else if isApexModule && apex.IsForPlatform() && isHostdex(module) {
+		} else if isApexModule && apexInfo.IsForPlatform() && isHostdex(module) {
 			// exception (skip and continue): special "hostdex" platform variant
 			return -1, nil
 		} else if name == "jacocoagent" && ctx.Config().IsEnvTrue("EMMA_INSTRUMENT_FRAMEWORK") {
@@ -279,7 +280,7 @@
 			return -1, nil
 		} else if fromUpdatableApex {
 			// error: this jar is part of an updatable apex other than ART
-			ctx.Errorf("module %q from updatable apexes %q is not allowed in the ART boot image", name, apex.InApexes())
+			ctx.Errorf("module %q from updatable apexes %q is not allowed in the ART boot image", name, apexInfo.InApexes)
 		} else {
 			// error: this jar is part of the platform or a non-updatable apex
 			ctx.Errorf("module %q is not allowed in the ART boot image", name)
@@ -289,7 +290,7 @@
 			// ok: this jar is part of the platform or a non-updatable apex
 		} else {
 			// error: this jar is part of an updatable apex
-			ctx.Errorf("module %q from updatable apexes %q is not allowed in the framework boot image", name, apex.InApexes())
+			ctx.Errorf("module %q from updatable apexes %q is not allowed in the framework boot image", name, apexInfo.InApexes)
 		}
 	} else {
 		panic("unknown boot image: " + image.name)
diff --git a/java/dexpreopt_bootjars_test.go b/java/dexpreopt_bootjars_test.go
index 4a8d3cd..00bd80c 100644
--- a/java/dexpreopt_bootjars_test.go
+++ b/java/dexpreopt_bootjars_test.go
@@ -84,6 +84,7 @@
 }
 
 func TestDexpreoptBootJars(t *testing.T) {
+	t.Parallel()
 	ruleFile := "boot-foo.art"
 
 	expectedInputs := []string{
@@ -114,6 +115,7 @@
 
 // Changes to the boot.zip structure may break the ART APK scanner.
 func TestDexpreoptBootZip(t *testing.T) {
+	t.Parallel()
 	ruleFile := "boot.zip"
 
 	ctx := android.PathContextForTesting(testConfig(nil, "", nil))
diff --git a/java/dexpreopt_test.go b/java/dexpreopt_test.go
index 5550a4c..0bb3ac9 100644
--- a/java/dexpreopt_test.go
+++ b/java/dexpreopt_test.go
@@ -19,6 +19,7 @@
 )
 
 func TestDexpreoptEnabled(t *testing.T) {
+	t.Parallel()
 	tests := []struct {
 		name    string
 		bp      string
diff --git a/java/droiddoc.go b/java/droiddoc.go
index 33f422d..b3bb5ab 100644
--- a/java/droiddoc.go
+++ b/java/droiddoc.go
@@ -1064,6 +1064,10 @@
 		return android.Paths{d.stubsSrcJar}, nil
 	case ".docs.zip":
 		return android.Paths{d.docZip}, nil
+	case ".api.txt":
+		return android.Paths{d.apiFilePath}, nil
+	case ".removed-api.txt":
+		return android.Paths{d.removedApiFile}, nil
 	case ".annotations.zip":
 		return android.Paths{d.annotationsZip}, nil
 	case ".api_versions.xml":
diff --git a/java/hiddenapi_singleton.go b/java/hiddenapi_singleton.go
index 61a9b97..b140b89 100644
--- a/java/hiddenapi_singleton.go
+++ b/java/hiddenapi_singleton.go
@@ -161,10 +161,9 @@
 				// For a java lib included in an APEX, only take the one built for
 				// the platform variant, and skip the variants for APEXes.
 				// Otherwise, the hiddenapi tool will complain about duplicated classes
-				if a, ok := module.(android.ApexModule); ok {
-					if android.InAnyApex(module.Name()) && !a.IsForPlatform() {
-						return
-					}
+				apexInfo := ctx.ModuleProvider(module, android.ApexInfoProvider).(android.ApexInfo)
+				if !apexInfo.IsForPlatform() {
+					return
 				}
 
 				bootDexJars = append(bootDexJars, jar)
diff --git a/java/hiddenapi_singleton_test.go b/java/hiddenapi_singleton_test.go
index dbdab7a..97dd125 100644
--- a/java/hiddenapi_singleton_test.go
+++ b/java/hiddenapi_singleton_test.go
@@ -58,6 +58,7 @@
 }
 
 func TestHiddenAPISingleton(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testHiddenAPIBootJars(t, `
 		java_library {
 			name: "foo",
@@ -75,6 +76,7 @@
 }
 
 func TestHiddenAPISingletonWithPrebuilt(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testHiddenAPIBootJars(t, `
 		java_import {
 			name: "foo",
@@ -92,6 +94,7 @@
 }
 
 func TestHiddenAPISingletonWithPrebuiltUseSource(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testHiddenAPIBootJars(t, `
 		java_library {
 			name: "foo",
@@ -121,6 +124,7 @@
 }
 
 func TestHiddenAPISingletonWithPrebuiltOverrideSource(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testHiddenAPIBootJars(t, `
 		java_library {
 			name: "foo",
@@ -150,6 +154,7 @@
 }
 
 func TestHiddenAPISingletonSdks(t *testing.T) {
+	t.Parallel()
 	testCases := []struct {
 		name             string
 		unbundledBuild   bool
diff --git a/java/jacoco_test.go b/java/jacoco_test.go
index 91f0553..d77c916 100644
--- a/java/jacoco_test.go
+++ b/java/jacoco_test.go
@@ -17,6 +17,7 @@
 import "testing"
 
 func TestJacocoFilterToSpecs(t *testing.T) {
+	t.Parallel()
 	testCases := []struct {
 		name, in, out string
 	}{
@@ -66,6 +67,7 @@
 }
 
 func TestJacocoFiltersToZipCommand(t *testing.T) {
+	t.Parallel()
 	testCases := []struct {
 		name               string
 		includes, excludes []string
diff --git a/java/java.go b/java/java.go
index 1d7eaa7..2553a30 100644
--- a/java/java.go
+++ b/java/java.go
@@ -451,6 +451,8 @@
 
 	// Collect the module directory for IDE info in java/jdeps.go.
 	modulePaths []string
+
+	hideApexVariantFromMake bool
 }
 
 func (j *Module) addHostProperties() {
@@ -638,8 +640,9 @@
 	// Force enable the instrumentation for java code that is built for APEXes ...
 	// except for the jacocoagent itself (because instrumenting jacocoagent using jacocoagent
 	// doesn't make sense) or framework libraries (e.g. libraries found in the InstrumentFrameworkModules list) unless EMMA_INSTRUMENT_FRAMEWORK is true.
+	apexInfo := ctx.Provider(android.ApexInfoProvider).(android.ApexInfo)
 	isJacocoAgent := ctx.ModuleName() == "jacocoagent"
-	if android.DirectlyInAnyApex(ctx, ctx.ModuleName()) && !isJacocoAgent && !j.IsForPlatform() {
+	if j.DirectlyInAnyApex() && !isJacocoAgent && !apexInfo.IsForPlatform() {
 		if !inList(ctx.ModuleName(), config.InstrumentFrameworkModules) {
 			return true
 		} else if ctx.Config().IsEnvTrue("EMMA_INSTRUMENT_FRAMEWORK") {
@@ -735,9 +738,21 @@
 		return ret
 	}
 
-	ctx.AddVariationDependencies(nil, libTag, rewriteSyspropLibs(j.properties.Libs, "libs")...)
+	libDeps := ctx.AddVariationDependencies(nil, libTag, rewriteSyspropLibs(j.properties.Libs, "libs")...)
 	ctx.AddVariationDependencies(nil, staticLibTag, rewriteSyspropLibs(j.properties.Static_libs, "static_libs")...)
 
+	// For library dependencies that are component libraries (like stubs), add the implementation
+	// as a dependency (dexpreopt needs to be against the implementation library, not stubs).
+	for _, dep := range libDeps {
+		if dep != nil {
+			if component, ok := dep.(SdkLibraryComponentDependency); ok {
+				if lib := component.OptionalSdkLibraryImplementation(); lib != nil {
+					ctx.AddVariationDependencies(nil, usesLibTag, *lib)
+				}
+			}
+		}
+	}
+
 	ctx.AddFarVariationDependencies(ctx.Config().BuildOSCommonTarget.Variations(), pluginTag, j.properties.Plugins...)
 	ctx.AddFarVariationDependencies(ctx.Config().BuildOSCommonTarget.Variations(), exportedPluginTag, j.properties.Exported_plugins...)
 
@@ -1590,7 +1605,8 @@
 	j.implementationAndResourcesJar = implementationAndResourcesJar
 
 	// Enable dex compilation for the APEX variants, unless it is disabled explicitly
-	if android.DirectlyInAnyApex(ctx, ctx.ModuleName()) && !j.IsForPlatform() {
+	apexInfo := ctx.Provider(android.ApexInfoProvider).(android.ApexInfo)
+	if j.DirectlyInAnyApex() && !apexInfo.IsForPlatform() {
 		if j.dexProperties.Compile_dex == nil {
 			j.dexProperties.Compile_dex = proptools.BoolPtr(true)
 		}
@@ -1672,7 +1688,7 @@
 		j.linter.compileSdkVersion = lintSDKVersionString(j.sdkVersion())
 		j.linter.javaLanguageLevel = flags.javaVersion.String()
 		j.linter.kotlinLanguageLevel = "1.3"
-		if j.ApexVariationName() != "" && ctx.Config().UnbundledBuildApps() {
+		if !apexInfo.IsForPlatform() && ctx.Config().UnbundledBuildApps() {
 			j.linter.buildModuleReportZip = true
 		}
 		j.linter.lint(ctx)
@@ -1934,7 +1950,7 @@
 
 func shouldUncompressDex(ctx android.ModuleContext, dexpreopter *dexpreopter) bool {
 	// Store uncompressed (and aligned) any dex files from jars in APEXes.
-	if am, ok := ctx.Module().(android.ApexModule); ok && !am.IsForPlatform() {
+	if apexInfo := ctx.Provider(android.ApexInfoProvider).(android.ApexInfo); !apexInfo.IsForPlatform() {
 		return true
 	}
 
@@ -1956,6 +1972,11 @@
 }
 
 func (j *Library) GenerateAndroidBuildActions(ctx android.ModuleContext) {
+	apexInfo := ctx.Provider(android.ApexInfoProvider).(android.ApexInfo)
+	if !apexInfo.IsForPlatform() {
+		j.hideApexVariantFromMake = true
+	}
+
 	j.checkSdkVersions(ctx)
 	j.dexpreopter.installPath = android.PathForModuleInstall(ctx, "framework", j.Stem()+".jar")
 	j.dexpreopter.isSDKLibrary = j.deviceProperties.IsSDKLibrary
@@ -1970,7 +1991,7 @@
 	// Collect the module directory for IDE info in java/jdeps.go.
 	j.modulePaths = append(j.modulePaths, ctx.ModuleDir())
 
-	exclusivelyForApex := android.InAnyApex(ctx.ModuleName()) && !j.IsForPlatform()
+	exclusivelyForApex := !apexInfo.IsForPlatform()
 	if (Bool(j.properties.Installable) || ctx.Host()) && !exclusivelyForApex {
 		var extraInstallDeps android.Paths
 		if j.InstallMixin != nil {
@@ -2562,6 +2583,8 @@
 	combinedClasspathFile android.Path
 	exportedSdkLibs       dexpreopt.LibraryPaths
 	exportAidlIncludeDirs android.Paths
+
+	hideApexVariantFromMake bool
 }
 
 func (j *Import) sdkVersion() sdkSpec {
@@ -2617,6 +2640,10 @@
 }
 
 func (j *Import) GenerateAndroidBuildActions(ctx android.ModuleContext) {
+	if !ctx.Provider(android.ApexInfoProvider).(android.ApexInfo).IsForPlatform() {
+		j.hideApexVariantFromMake = true
+	}
+
 	jars := android.PathsForModuleSrc(ctx, j.properties.Jars)
 
 	jarName := j.Stem() + ".jar"
@@ -2699,6 +2726,17 @@
 	}
 }
 
+func (j *Import) OutputFiles(tag string) (android.Paths, error) {
+	switch tag {
+	case ".jar":
+		return android.Paths{j.combinedClasspathFile}, nil
+	default:
+		return nil, fmt.Errorf("unsupported module reference tag %q", tag)
+	}
+}
+
+var _ android.OutputFileProducer = (*Import)(nil)
+
 var _ Dependency = (*Import)(nil)
 
 func (j *Import) HeaderJars() android.Paths {
@@ -2849,6 +2887,8 @@
 	maybeStrippedDexJarFile android.Path
 
 	dexpreopter
+
+	hideApexVariantFromMake bool
 }
 
 func (j *DexImport) Prebuilt() *android.Prebuilt {
@@ -2884,6 +2924,11 @@
 		ctx.PropertyErrorf("jars", "exactly one jar must be provided")
 	}
 
+	apexInfo := ctx.Provider(android.ApexInfoProvider).(android.ApexInfo)
+	if !apexInfo.IsForPlatform() {
+		j.hideApexVariantFromMake = true
+	}
+
 	j.dexpreopter.installPath = android.PathForModuleInstall(ctx, "framework", j.Stem()+".jar")
 	j.dexpreopter.uncompressedDex = shouldUncompressDex(ctx, &j.dexpreopter)
 
@@ -2928,7 +2973,7 @@
 
 	j.maybeStrippedDexJarFile = dexOutputFile
 
-	if j.IsForPlatform() {
+	if apexInfo.IsForPlatform() {
 		ctx.InstallFile(android.PathForModuleInstall(ctx, "framework"),
 			j.Stem()+".jar", dexOutputFile)
 	}
diff --git a/java/java_test.go b/java/java_test.go
index f16639a..245654d 100644
--- a/java/java_test.go
+++ b/java/java_test.go
@@ -177,6 +177,7 @@
 }
 
 func TestJavaLinkType(t *testing.T) {
+	t.Parallel()
 	testJava(t, `
 		java_library {
 			name: "foo",
@@ -265,6 +266,7 @@
 }
 
 func TestSimple(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testJava(t, `
 		java_library {
 			name: "foo",
@@ -309,6 +311,7 @@
 }
 
 func TestExportedPlugins(t *testing.T) {
+	t.Parallel()
 	type Result struct {
 		library    string
 		processors string
@@ -392,6 +395,7 @@
 }
 
 func TestSdkVersionByPartition(t *testing.T) {
+	t.Parallel()
 	testJavaError(t, "sdk_version must have a value when the module is located at vendor or product", `
 		java_library {
 			name: "foo",
@@ -427,6 +431,7 @@
 }
 
 func TestArchSpecific(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testJava(t, `
 		java_library {
 			name: "foo",
@@ -446,6 +451,7 @@
 }
 
 func TestBinary(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testJava(t, `
 		java_library_host {
 			name: "foo",
@@ -474,6 +480,7 @@
 }
 
 func TestHostBinaryNoJavaDebugInfoOverride(t *testing.T) {
+	t.Parallel()
 	bp := `
 		java_library {
 			name: "target_library",
@@ -509,6 +516,7 @@
 }
 
 func TestPrebuilts(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testJava(t, `
 		java_library {
 			name: "foo",
@@ -604,6 +612,7 @@
 }
 
 func TestJavaSdkLibraryImport(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testJava(t, `
 		java_library {
 			name: "foo",
@@ -660,6 +669,7 @@
 }
 
 func TestJavaSdkLibraryImport_WithSource(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testJava(t, `
 		java_sdk_library {
 			name: "sdklib",
@@ -699,6 +709,7 @@
 }
 
 func TestJavaSdkLibraryImport_Preferred(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testJava(t, `
 		java_sdk_library {
 			name: "sdklib",
@@ -736,6 +747,7 @@
 }
 
 func TestDefaults(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testJava(t, `
 		java_defaults {
 			name: "defaults",
@@ -811,6 +823,7 @@
 }
 
 func TestResources(t *testing.T) {
+	t.Parallel()
 	var table = []struct {
 		name  string
 		prop  string
@@ -917,6 +930,7 @@
 }
 
 func TestIncludeSrcs(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testJavaWithFS(t, `
 		java_library {
 			name: "foo",
@@ -984,6 +998,7 @@
 }
 
 func TestGeneratedSources(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testJavaWithFS(t, `
 		java_library {
 			name: "foo",
@@ -1020,6 +1035,7 @@
 }
 
 func TestTurbine(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testJava(t, `
 		java_library {
 			name: "foo",
@@ -1069,6 +1085,7 @@
 }
 
 func TestSharding(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testJava(t, `
 		java_library {
 			name: "bar",
@@ -1087,6 +1104,7 @@
 }
 
 func TestDroiddoc(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testJavaWithFS(t, `
 		droiddoc_exported_dir {
 		    name: "droiddoc-templates-sdk",
@@ -1165,6 +1183,7 @@
 }
 
 func TestDroiddocArgsAndFlagsCausesError(t *testing.T) {
+	t.Parallel()
 	testJavaError(t, "flags is set. Cannot set args", `
 		droiddoc_exported_dir {
 		    name: "droiddoc-templates-sdk",
@@ -1211,6 +1230,7 @@
 }
 
 func TestDroidstubs(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testJavaWithFS(t, `
 		droiddoc_exported_dir {
 		    name: "droiddoc-templates-sdk",
@@ -1267,6 +1287,7 @@
 }
 
 func TestDroidstubsWithSystemModules(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testJava(t, `
 		droidstubs {
 		    name: "stubs-source-system-modules",
@@ -1326,6 +1347,7 @@
 }
 
 func TestJarGenrules(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testJava(t, `
 		java_library {
 			name: "foo",
@@ -1380,6 +1402,7 @@
 }
 
 func TestExcludeFileGroupInSrcs(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testJava(t, `
 		java_library {
 			name: "foo",
@@ -1406,19 +1429,45 @@
 }
 
 func TestJavaLibrary(t *testing.T) {
+	t.Parallel()
 	config := testConfig(nil, "", map[string][]byte{
 		"libcore/Android.bp": []byte(`
 				java_library {
 						name: "core",
 						sdk_version: "none",
 						system_modules: "none",
-				}`),
+				}
+
+				filegroup {
+					name: "core-jar",
+					srcs: [":core{.jar}"],
+				}
+`),
+	})
+	ctx := testContext()
+	run(t, ctx, config)
+}
+
+func TestJavaImport(t *testing.T) {
+	config := testConfig(nil, "", map[string][]byte{
+		"libcore/Android.bp": []byte(`
+				java_import {
+						name: "core",
+						sdk_version: "none",
+				}
+
+				filegroup {
+					name: "core-jar",
+					srcs: [":core{.jar}"],
+				}
+`),
 	})
 	ctx := testContext()
 	run(t, ctx, config)
 }
 
 func TestJavaSdkLibrary(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testJava(t, `
 		droiddoc_exported_dir {
 			name: "droiddoc-templates-sdk",
@@ -1557,6 +1606,7 @@
 }
 
 func TestJavaSdkLibrary_DoNotAccessImplWhenItIsNotBuilt(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testJava(t, `
 		java_sdk_library {
 			name: "foo",
@@ -1582,6 +1632,7 @@
 }
 
 func TestJavaSdkLibrary_UseSourcesFromAnotherSdkLibrary(t *testing.T) {
+	t.Parallel()
 	testJava(t, `
 		java_sdk_library {
 			name: "foo",
@@ -1600,6 +1651,7 @@
 }
 
 func TestJavaSdkLibrary_AccessOutputFiles_MissingScope(t *testing.T) {
+	t.Parallel()
 	testJavaError(t, `"foo" does not provide api scope system`, `
 		java_sdk_library {
 			name: "foo",
@@ -1618,6 +1670,7 @@
 }
 
 func TestJavaSdkLibrary_Deps(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testJava(t, `
 		java_sdk_library {
 			name: "sdklib",
@@ -1640,6 +1693,7 @@
 }
 
 func TestJavaSdkLibraryImport_AccessOutputFiles(t *testing.T) {
+	t.Parallel()
 	testJava(t, `
 		java_sdk_library_import {
 			name: "foo",
@@ -1663,6 +1717,7 @@
 }
 
 func TestJavaSdkLibraryImport_AccessOutputFiles_Invalid(t *testing.T) {
+	t.Parallel()
 	bp := `
 		java_sdk_library_import {
 			name: "foo",
@@ -1711,6 +1766,7 @@
 }
 
 func TestJavaSdkLibrary_InvalidScopes(t *testing.T) {
+	t.Parallel()
 	testJavaError(t, `module "foo": enabled api scope "system" depends on disabled scope "public"`, `
 		java_sdk_library {
 			name: "foo",
@@ -1729,6 +1785,7 @@
 }
 
 func TestJavaSdkLibrary_SdkVersion_ForScope(t *testing.T) {
+	t.Parallel()
 	testJava(t, `
 		java_sdk_library {
 			name: "foo",
@@ -1743,6 +1800,7 @@
 }
 
 func TestJavaSdkLibrary_ModuleLib(t *testing.T) {
+	t.Parallel()
 	testJava(t, `
 		java_sdk_library {
 			name: "foo",
@@ -1759,6 +1817,7 @@
 }
 
 func TestJavaSdkLibrary_SystemServer(t *testing.T) {
+	t.Parallel()
 	testJava(t, `
 		java_sdk_library {
 			name: "foo",
@@ -1775,6 +1834,7 @@
 }
 
 func TestJavaSdkLibrary_MissingScope(t *testing.T) {
+	t.Parallel()
 	testJavaError(t, `requires api scope module-lib from foo but it only has \[\] available`, `
 		java_sdk_library {
 			name: "foo",
@@ -1794,6 +1854,7 @@
 }
 
 func TestJavaSdkLibrary_FallbackScope(t *testing.T) {
+	t.Parallel()
 	testJava(t, `
 		java_sdk_library {
 			name: "foo",
@@ -1814,6 +1875,7 @@
 }
 
 func TestJavaSdkLibrary_DefaultToStubs(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testJava(t, `
 		java_sdk_library {
 			name: "foo",
@@ -1889,6 +1951,7 @@
 }
 
 func TestCompilerFlags(t *testing.T) {
+	t.Parallel()
 	for _, testCase := range compilerFlagsTestCases {
 		ctx := &mockContext{result: true}
 		CheckKotlincFlags(ctx, []string{testCase.in})
@@ -1919,6 +1982,7 @@
 }
 
 func TestPatchModule(t *testing.T) {
+	t.Parallel()
 	t.Run("Java language level 8", func(t *testing.T) {
 		// Test with legacy javac -source 1.8 -target 1.8
 		bp := `
@@ -1984,6 +2048,7 @@
 }
 
 func TestJavaSystemModules(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testJava(t, `
 		java_system_modules {
 			name: "system-modules",
@@ -2018,6 +2083,7 @@
 }
 
 func TestJavaSystemModulesImport(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testJava(t, `
 		java_system_modules_import {
 			name: "system-modules",
@@ -2048,6 +2114,7 @@
 }
 
 func TestJavaLibraryWithSystemModules(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testJava(t, `
 		java_library {
 		    name: "lib-with-source-system-modules",
@@ -2104,6 +2171,7 @@
 }
 
 func TestAidlExportIncludeDirsFromImports(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testJava(t, `
 		java_library {
 			name: "foo",
@@ -2128,6 +2196,7 @@
 }
 
 func TestDataNativeBinaries(t *testing.T) {
+	t.Parallel()
 	ctx, config := testJava(t, `
 		java_test_host {
 			name: "foo",
diff --git a/java/jdeps_test.go b/java/jdeps_test.go
index 874d1d7..46e7296 100644
--- a/java/jdeps_test.go
+++ b/java/jdeps_test.go
@@ -22,6 +22,7 @@
 )
 
 func TestCollectJavaLibraryPropertiesAddLibsDeps(t *testing.T) {
+	t.Parallel()
 	expected := []string{"Foo", "Bar"}
 	module := LibraryFactory().(*Library)
 	module.properties.Libs = append(module.properties.Libs, expected...)
@@ -35,6 +36,7 @@
 }
 
 func TestCollectJavaLibraryPropertiesAddStaticLibsDeps(t *testing.T) {
+	t.Parallel()
 	expected := []string{"Foo", "Bar"}
 	module := LibraryFactory().(*Library)
 	module.properties.Static_libs = append(module.properties.Static_libs, expected...)
@@ -48,6 +50,7 @@
 }
 
 func TestCollectJavaLibraryPropertiesAddScrs(t *testing.T) {
+	t.Parallel()
 	expected := []string{"Foo", "Bar"}
 	module := LibraryFactory().(*Library)
 	module.expandIDEInfoCompiledSrcs = append(module.expandIDEInfoCompiledSrcs, expected...)
@@ -61,6 +64,7 @@
 }
 
 func TestCollectJavaLibraryPropertiesAddAidlIncludeDirs(t *testing.T) {
+	t.Parallel()
 	expected := []string{"Foo", "Bar"}
 	module := LibraryFactory().(*Library)
 	module.deviceProperties.Aidl.Include_dirs = append(module.deviceProperties.Aidl.Include_dirs, expected...)
@@ -74,6 +78,7 @@
 }
 
 func TestCollectJavaLibraryPropertiesAddJarjarRules(t *testing.T) {
+	t.Parallel()
 	expected := "Jarjar_rules.txt"
 	module := LibraryFactory().(*Library)
 	module.expandJarjarRules = android.PathForTesting(expected)
diff --git a/java/kotlin_test.go b/java/kotlin_test.go
index 60ca1c4..530f7fe 100644
--- a/java/kotlin_test.go
+++ b/java/kotlin_test.go
@@ -22,6 +22,7 @@
 )
 
 func TestKotlin(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testJava(t, `
 		java_library {
 			name: "foo",
@@ -84,6 +85,7 @@
 }
 
 func TestKapt(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testJava(t, `
 		java_library {
 			name: "foo",
@@ -163,6 +165,7 @@
 }
 
 func TestKaptEncodeFlags(t *testing.T) {
+	t.Parallel()
 	// Compares the kaptEncodeFlags against the results of the example implementation at
 	// https://kotlinlang.org/docs/reference/kapt.html#apjavac-options-encoding
 	tests := []struct {
diff --git a/java/lint.go b/java/lint.go
index 3a210cc..3df582f 100644
--- a/java/lint.go
+++ b/java/lint.go
@@ -451,10 +451,13 @@
 			return
 		}
 
-		if apex, ok := m.(android.ApexModule); ok && apex.NotAvailableForPlatform() && apex.IsForPlatform() {
-			// There are stray platform variants of modules in apexes that are not available for
-			// the platform, and they sometimes can't be built.  Don't depend on them.
-			return
+		if apex, ok := m.(android.ApexModule); ok && apex.NotAvailableForPlatform() {
+			apexInfo := ctx.ModuleProvider(m, android.ApexInfoProvider).(android.ApexInfo)
+			if apexInfo.IsForPlatform() {
+				// There are stray platform variants of modules in apexes that are not available for
+				// the platform, and they sometimes can't be built.  Don't depend on them.
+				return
+			}
 		}
 
 		if l, ok := m.(lintOutputsIntf); ok {
diff --git a/java/plugin_test.go b/java/plugin_test.go
index c7913d3..3eb0215 100644
--- a/java/plugin_test.go
+++ b/java/plugin_test.go
@@ -20,6 +20,7 @@
 )
 
 func TestNoPlugin(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testJava(t, `
 		java_library {
 			name: "foo",
@@ -44,6 +45,7 @@
 }
 
 func TestPlugin(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testJava(t, `
 		java_library {
 			name: "foo",
@@ -83,6 +85,7 @@
 }
 
 func TestPluginGeneratesApi(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testJava(t, `
 		java_library {
 			name: "foo",
diff --git a/java/sdk_library.go b/java/sdk_library.go
index 60924a6..119eb65 100644
--- a/java/sdk_library.go
+++ b/java/sdk_library.go
@@ -870,6 +870,12 @@
 	return e.sdkLibraryComponentProperties.SdkLibraryToImplicitlyTrack
 }
 
+// to satisfy SdkLibraryComponentDependency
+func (e *EmbeddableSdkLibraryComponent) OptionalSdkLibraryImplementation() *string {
+	// Currently implementation library name is the same as the SDK library name.
+	return e.sdkLibraryComponentProperties.SdkLibraryToImplicitlyTrack
+}
+
 // Implemented by modules that are (or possibly could be) a component of a java_sdk_library
 // (including the java_sdk_library) itself.
 type SdkLibraryComponentDependency interface {
@@ -880,6 +886,9 @@
 	//
 	// Returns the name of the optional implicit SDK library or nil, if there isn't one.
 	OptionalImplicitSdkLibrary() *string
+
+	// The name of the implementation library for the optional SDK library or nil, if there isn't one.
+	OptionalSdkLibraryImplementation() *string
 }
 
 // Make sure that all the module types that are components of java_sdk_library/_import
@@ -1410,22 +1419,14 @@
 	return android.Paths{jarPath.Path()}
 }
 
-// Get the apex names for module, nil if it is for platform.
-func getApexNamesForModule(module android.Module) []string {
-	if apex, ok := module.(android.ApexModule); ok {
-		return apex.InApexes()
-	}
-
-	return nil
-}
-
 // Check to see if the other module is within the same set of named APEXes as this module.
 //
 // If either this or the other module are on the platform then this will return
 // false.
-func withinSameApexesAs(module android.ApexModule, other android.Module) bool {
-	names := module.InApexes()
-	return len(names) > 0 && reflect.DeepEqual(names, getApexNamesForModule(other))
+func withinSameApexesAs(ctx android.BaseModuleContext, other android.Module) bool {
+	apexInfo := ctx.Provider(android.ApexInfoProvider).(android.ApexInfo)
+	otherApexInfo := ctx.OtherModuleProvider(other, android.ApexInfoProvider).(android.ApexInfo)
+	return len(otherApexInfo.InApexes) > 0 && reflect.DeepEqual(apexInfo.InApexes, otherApexInfo.InApexes)
 }
 
 func (module *SdkLibrary) sdkJars(ctx android.BaseModuleContext, sdkVersion sdkSpec, headerJars bool) android.Paths {
@@ -1444,7 +1445,7 @@
 		// Only allow access to the implementation library in the following condition:
 		// * No sdk_version specified on the referencing module.
 		// * The referencing module is in the same apex as this.
-		if sdkVersion.kind == sdkPrivate || withinSameApexesAs(module, ctx.Module()) {
+		if sdkVersion.kind == sdkPrivate || withinSameApexesAs(ctx, module) {
 			if headerJars {
 				return module.HeaderJars()
 			} else {
@@ -1961,7 +1962,7 @@
 	// For consistency with SdkLibrary make the implementation jar available to libraries that
 	// are within the same APEX.
 	implLibraryModule := module.implLibraryModule
-	if implLibraryModule != nil && withinSameApexesAs(module, ctx.Module()) {
+	if implLibraryModule != nil && withinSameApexesAs(ctx, module) {
 		if headerJars {
 			return implLibraryModule.HeaderJars()
 		} else {
@@ -2057,6 +2058,8 @@
 
 	outputFilePath android.OutputPath
 	installDirPath android.InstallPath
+
+	hideApexVariantFromMake bool
 }
 
 type sdkLibraryXmlProperties struct {
@@ -2114,13 +2117,13 @@
 }
 
 // File path to the runtime implementation library
-func (module *sdkLibraryXml) implPath() string {
+func (module *sdkLibraryXml) implPath(ctx android.ModuleContext) string {
 	implName := proptools.String(module.properties.Lib_name)
-	if apexName := module.ApexVariationName(); apexName != "" {
+	if apexInfo := ctx.Provider(android.ApexInfoProvider).(android.ApexInfo); !apexInfo.IsForPlatform() {
 		// TODO(b/146468504): ApexVariationName() is only a soong module name, not apex name.
 		// In most cases, this works fine. But when apex_name is set or override_apex is used
 		// this can be wrong.
-		return fmt.Sprintf("/apex/%s/javalib/%s.jar", apexName, implName)
+		return fmt.Sprintf("/apex/%s/javalib/%s.jar", apexInfo.ApexVariationName, implName)
 	}
 	partition := "system"
 	if module.SocSpecific() {
@@ -2136,8 +2139,10 @@
 }
 
 func (module *sdkLibraryXml) GenerateAndroidBuildActions(ctx android.ModuleContext) {
+	module.hideApexVariantFromMake = !ctx.Provider(android.ApexInfoProvider).(android.ApexInfo).IsForPlatform()
+
 	libName := proptools.String(module.properties.Lib_name)
-	xmlContent := fmt.Sprintf(permissionsTemplate, libName, module.implPath())
+	xmlContent := fmt.Sprintf(permissionsTemplate, libName, module.implPath(ctx))
 
 	module.outputFilePath = android.PathForModuleOut(ctx, libName+".xml").OutputPath
 	rule := android.NewRuleBuilder()
@@ -2151,7 +2156,7 @@
 }
 
 func (module *sdkLibraryXml) AndroidMkEntries() []android.AndroidMkEntries {
-	if !module.IsForPlatform() {
+	if module.hideApexVariantFromMake {
 		return []android.AndroidMkEntries{android.AndroidMkEntries{
 			Disabled: true,
 		}}
diff --git a/java/sdk_test.go b/java/sdk_test.go
index 776069d..374da11 100644
--- a/java/sdk_test.go
+++ b/java/sdk_test.go
@@ -27,6 +27,7 @@
 )
 
 func TestClasspath(t *testing.T) {
+	t.Parallel()
 	var classpathTestcases = []struct {
 		name       string
 		unbundled  bool
diff --git a/makedeps/deps_test.go b/makedeps/deps_test.go
index ac2f699..17e77c4 100644
--- a/makedeps/deps_test.go
+++ b/makedeps/deps_test.go
@@ -23,6 +23,7 @@
 )
 
 func TestParse(t *testing.T) {
+	t.Parallel()
 	testCases := []struct {
 		name   string
 		input  string
@@ -339,6 +340,7 @@
 }
 
 func TestDepPrint(t *testing.T) {
+	t.Parallel()
 	testCases := []struct {
 		name   string
 		input  Deps
diff --git a/partner/androidmk/androidmk_test.go b/partner/androidmk/androidmk_test.go
index 6bae836..2a0ddc8 100644
--- a/partner/androidmk/androidmk_test.go
+++ b/partner/androidmk/androidmk_test.go
@@ -54,6 +54,7 @@
 }
 
 func TestEndToEnd(t *testing.T) {
+	t.Parallel()
 	for i, test := range testCases {
 		expected, err := bpfix.Reformat(test.expected)
 		if err != nil {
diff --git a/python/python_test.go b/python/python_test.go
index 23db24e..455d84a 100644
--- a/python/python_test.go
+++ b/python/python_test.go
@@ -326,6 +326,7 @@
 )
 
 func TestPythonModule(t *testing.T) {
+	t.Parallel()
 	for _, d := range data {
 		t.Run(d.desc, func(t *testing.T) {
 			config := android.TestConfig(buildDir, nil, "", d.mockFiles)
diff --git a/remoteexec/remoteexec_test.go b/remoteexec/remoteexec_test.go
index 56985d3..2fd3687 100644
--- a/remoteexec/remoteexec_test.go
+++ b/remoteexec/remoteexec_test.go
@@ -22,6 +22,7 @@
 )
 
 func TestTemplate(t *testing.T) {
+	t.Parallel()
 	tests := []struct {
 		name   string
 		params *REParams
@@ -67,6 +68,7 @@
 }
 
 func TestNoVarTemplate(t *testing.T) {
+	t.Parallel()
 	params := &REParams{
 		Labels:      map[string]string{"type": "compile", "lang": "cpp", "compiler": "clang"},
 		Inputs:      []string{"$in"},
@@ -83,6 +85,7 @@
 }
 
 func TestTemplateDeterminism(t *testing.T) {
+	t.Parallel()
 	r := &REParams{
 		Labels:      map[string]string{"type": "compile", "lang": "cpp", "compiler": "clang"},
 		Inputs:      []string{"$in"},
diff --git a/rust/binary_test.go b/rust/binary_test.go
index b44a5bc..692a066 100644
--- a/rust/binary_test.go
+++ b/rust/binary_test.go
@@ -23,6 +23,7 @@
 
 // Test that rustlibs default linkage is correct for binaries.
 func TestBinaryLinkage(t *testing.T) {
+	t.Parallel()
 	ctx := testRust(t, `
 		rust_binary {
 			name: "fizz-buzz",
@@ -86,6 +87,7 @@
 
 // Test that the path returned by HostToolPath is correct
 func TestHostToolPath(t *testing.T) {
+	t.Parallel()
 	ctx := testRust(t, `
 		rust_binary_host {
 			name: "fizz-buzz",
@@ -100,6 +102,7 @@
 
 // Test that the flags being passed to rust_binary modules are as expected
 func TestBinaryFlags(t *testing.T) {
+	t.Parallel()
 	ctx := testRust(t, `
 		rust_binary_host {
 			name: "fizz-buzz",
@@ -143,6 +146,7 @@
 }
 
 func TestLinkObjects(t *testing.T) {
+	t.Parallel()
 	ctx := testRust(t, `
 		rust_binary {
 			name: "fizz-buzz",
@@ -162,6 +166,7 @@
 
 // Test that stripped versions are correctly generated and used.
 func TestStrippedBinary(t *testing.T) {
+	t.Parallel()
 	ctx := testRust(t, `
 		rust_binary {
 			name: "foo",
diff --git a/rust/bindgen_test.go b/rust/bindgen_test.go
index 9cccf13..7ff996d 100644
--- a/rust/bindgen_test.go
+++ b/rust/bindgen_test.go
@@ -20,6 +20,7 @@
 )
 
 func TestRustBindgen(t *testing.T) {
+	t.Parallel()
 	ctx := testRust(t, `
 		rust_bindgen {
 			name: "libbindgen",
@@ -66,6 +67,7 @@
 }
 
 func TestRustBindgenCustomBindgen(t *testing.T) {
+	t.Parallel()
 	ctx := testRust(t, `
 		rust_bindgen {
 			name: "libbindgen",
diff --git a/rust/builder_test.go b/rust/builder_test.go
index 5c11cb7..cda03a9 100644
--- a/rust/builder_test.go
+++ b/rust/builder_test.go
@@ -17,6 +17,7 @@
 import "testing"
 
 func TestSourceProviderCollision(t *testing.T) {
+	t.Parallel()
 	testRustError(t, "multiple source providers generate the same filename output: bindings.rs", `
 		rust_binary {
 			name: "source_collider",
diff --git a/rust/clippy_test.go b/rust/clippy_test.go
index 7815aab..786dc15 100644
--- a/rust/clippy_test.go
+++ b/rust/clippy_test.go
@@ -21,6 +21,7 @@
 )
 
 func TestClippy(t *testing.T) {
+	t.Parallel()
 
 	bp := `
 		// foo uses the default value of clippy_lints
diff --git a/rust/compiler_test.go b/rust/compiler_test.go
index a25523c..70f0dff 100644
--- a/rust/compiler_test.go
+++ b/rust/compiler_test.go
@@ -23,6 +23,7 @@
 
 // Test that feature flags are being correctly generated.
 func TestFeaturesToFlags(t *testing.T) {
+	t.Parallel()
 	ctx := testRust(t, `
 		rust_library_host_dylib {
 			name: "libfoo",
@@ -44,6 +45,7 @@
 
 // Test that we reject multiple source files.
 func TestEnforceSingleSourceFile(t *testing.T) {
+	t.Parallel()
 
 	singleSrcError := "srcs can only contain one path for a rust file and source providers prefixed by \":\""
 
@@ -78,6 +80,7 @@
 }
 
 func TestInstallDir(t *testing.T) {
+	t.Parallel()
 	ctx := testRust(t, `
 		rust_library_dylib {
 			name: "libfoo",
@@ -108,6 +111,7 @@
 }
 
 func TestLints(t *testing.T) {
+	t.Parallel()
 
 	bp := `
 		// foo uses the default value of lints
@@ -180,6 +184,7 @@
 
 // Test that devices are linking the stdlib dynamically
 func TestStdDeviceLinkage(t *testing.T) {
+	t.Parallel()
 	ctx := testRust(t, `
 		rust_binary {
 			name: "fizz",
diff --git a/rust/coverage_test.go b/rust/coverage_test.go
index 90155ca..ced548d 100644
--- a/rust/coverage_test.go
+++ b/rust/coverage_test.go
@@ -23,6 +23,7 @@
 
 // Test that coverage flags are being correctly generated.
 func TestCoverageFlags(t *testing.T) {
+	t.Parallel()
 	ctx := testRustCov(t, `
 		rust_library {
 			name: "libfoo_cov",
@@ -98,6 +99,7 @@
 
 // Test coverage files are included correctly
 func TestCoverageZip(t *testing.T) {
+	t.Parallel()
 	ctx := testRustCov(t, `
 		rust_library {
 			name: "libfoo",
@@ -174,6 +176,7 @@
 }
 
 func TestCoverageDeps(t *testing.T) {
+	t.Parallel()
 	ctx := testRustCov(t, `
 		rust_binary {
 			name: "fizz",
diff --git a/rust/library_test.go b/rust/library_test.go
index fec3992..fdab78d 100644
--- a/rust/library_test.go
+++ b/rust/library_test.go
@@ -23,6 +23,7 @@
 
 // Test that variants are being generated correctly, and that crate-types are correct.
 func TestLibraryVariants(t *testing.T) {
+	t.Parallel()
 
 	ctx := testRust(t, `
 		rust_library_host {
@@ -71,6 +72,7 @@
 
 // Test that dylibs are not statically linking the standard library.
 func TestDylibPreferDynamic(t *testing.T) {
+	t.Parallel()
 	ctx := testRust(t, `
 		rust_library_host_dylib {
 			name: "libfoo",
@@ -86,6 +88,7 @@
 }
 
 func TestValidateLibraryStem(t *testing.T) {
+	t.Parallel()
 	testRustError(t, "crate_name must be defined.", `
 			rust_library_host {
 				name: "libfoo",
@@ -123,6 +126,7 @@
 }
 
 func TestSharedLibrary(t *testing.T) {
+	t.Parallel()
 	ctx := testRust(t, `
 		rust_ffi_shared {
 			name: "libfoo",
@@ -145,6 +149,7 @@
 }
 
 func TestStaticLibraryLinkage(t *testing.T) {
+	t.Parallel()
 	ctx := testRust(t, `
 		rust_ffi_static {
 			name: "libfoo",
@@ -162,6 +167,7 @@
 
 // Test that variants pull in the right type of rustlib autodep
 func TestAutoDeps(t *testing.T) {
+	t.Parallel()
 
 	ctx := testRust(t, `
                 rust_library_host {
@@ -209,6 +215,7 @@
 
 // Test that stripped versions are correctly generated and used.
 func TestStrippedLibrary(t *testing.T) {
+	t.Parallel()
 	ctx := testRust(t, `
 		rust_library_dylib {
 			name: "libfoo",
@@ -240,6 +247,7 @@
 }
 
 func TestLibstdLinkage(t *testing.T) {
+	t.Parallel()
 	ctx := testRust(t, `
 		rust_library {
 			name: "libfoo",
diff --git a/rust/protobuf_test.go b/rust/protobuf_test.go
index bd11a5a..cfe56a3 100644
--- a/rust/protobuf_test.go
+++ b/rust/protobuf_test.go
@@ -20,6 +20,7 @@
 )
 
 func TestRustProtobuf(t *testing.T) {
+	t.Parallel()
 	ctx := testRust(t, `
 		rust_protobuf {
 			name: "librust_proto",
diff --git a/rust/rust_test.go b/rust/rust_test.go
index 4842a4c..26e943a 100644
--- a/rust/rust_test.go
+++ b/rust/rust_test.go
@@ -135,6 +135,7 @@
 
 // Test that we can extract the link path from a lib path.
 func TestLinkPathFromFilePath(t *testing.T) {
+	t.Parallel()
 	barPath := android.PathForTesting("out/soong/.intermediates/external/libbar/libbar/linux_glibc_x86_64_shared/libbar.so")
 	libName := linkPathFromFilePath(barPath)
 	expectedResult := "out/soong/.intermediates/external/libbar/libbar/linux_glibc_x86_64_shared/"
@@ -146,6 +147,7 @@
 
 // Test to make sure dependencies are being picked up correctly.
 func TestDepsTracking(t *testing.T) {
+	t.Parallel()
 	ctx := testRust(t, `
 		rust_ffi_host_static {
 			name: "libstatic",
@@ -207,6 +209,7 @@
 }
 
 func TestSourceProviderDeps(t *testing.T) {
+	t.Parallel()
 	ctx := testRust(t, `
 		rust_binary {
 			name: "fizz-buzz-dep",
@@ -294,6 +297,7 @@
 }
 
 func TestSourceProviderTargetMismatch(t *testing.T) {
+	t.Parallel()
 	// This might error while building the dependency tree or when calling depsToPaths() depending on the lunched
 	// target, which results in two different errors. So don't check the error, just confirm there is one.
 	testRustError(t, ".*", `
@@ -316,6 +320,7 @@
 
 // Test to make sure proc_macros use host variants when building device modules.
 func TestProcMacroDeviceDeps(t *testing.T) {
+	t.Parallel()
 	ctx := testRust(t, `
 		rust_library_host_rlib {
 			name: "libbar",
@@ -343,6 +348,7 @@
 
 // Test that no_stdlibs suppresses dependencies on rust standard libraries
 func TestNoStdlibs(t *testing.T) {
+	t.Parallel()
 	ctx := testRust(t, `
 		rust_binary {
 			name: "fizz-buzz",
@@ -358,6 +364,7 @@
 
 // Test that libraries provide both 32-bit and 64-bit variants.
 func TestMultilib(t *testing.T) {
+	t.Parallel()
 	ctx := testRust(t, `
 		rust_library_rlib {
 			name: "libfoo",
diff --git a/rust/source_provider_test.go b/rust/source_provider_test.go
index 6e68ae6..f16d694 100644
--- a/rust/source_provider_test.go
+++ b/rust/source_provider_test.go
@@ -21,6 +21,7 @@
 var stemRequiredError = "source_stem property is undefined but required for rust_bindgen modules"
 
 func TestSourceProviderRequiredFields(t *testing.T) {
+	t.Parallel()
 	testRustError(t, stemRequiredError, `
 		rust_bindgen {
 			name: "libbindgen",
diff --git a/rust/test_test.go b/rust/test_test.go
index fea2ad0..bb4695a 100644
--- a/rust/test_test.go
+++ b/rust/test_test.go
@@ -22,6 +22,7 @@
 )
 
 func TestRustTest(t *testing.T) {
+	t.Parallel()
 	ctx := testRust(t, `
 		rust_test_host {
 			name: "my_test",
@@ -37,6 +38,7 @@
 }
 
 func TestRustTestLinkage(t *testing.T) {
+	t.Parallel()
 	ctx := testRust(t, `
 		rust_test {
 			name: "my_test",
diff --git a/sdk/bp_test.go b/sdk/bp_test.go
index e1edc51..4cd54c7 100644
--- a/sdk/bp_test.go
+++ b/sdk/bp_test.go
@@ -180,6 +180,7 @@
 }
 
 func TestTransformRemoveProperty(t *testing.T) {
+	t.Parallel()
 
 	helper := &TestHelper{t}
 
@@ -195,6 +196,7 @@
 }
 
 func TestTransformRemovePropertySet(t *testing.T) {
+	t.Parallel()
 
 	helper := &TestHelper{t}
 
diff --git a/sdk/cc_sdk_test.go b/sdk/cc_sdk_test.go
index c214e75..e0cba09 100644
--- a/sdk/cc_sdk_test.go
+++ b/sdk/cc_sdk_test.go
@@ -40,6 +40,7 @@
 // Contains tests for SDK members provided by the cc package.
 
 func TestSingleDeviceOsAssumption(t *testing.T) {
+	t.Parallel()
 	// Mock a module with DeviceSupported() == true.
 	s := &sdk{}
 	android.InitAndroidArchModule(s, android.DeviceSupported, android.MultilibCommon)
@@ -54,6 +55,7 @@
 }
 
 func TestSdkIsCompileMultilibBoth(t *testing.T) {
+	t.Parallel()
 	result := testSdkWithCc(t, `
 		sdk {
 			name: "mysdk",
@@ -84,6 +86,7 @@
 }
 
 func TestSdkCompileMultilibOverride(t *testing.T) {
+	t.Parallel()
 	result := testSdkWithCc(t, `
 		sdk {
 			name: "mysdk",
@@ -175,6 +178,7 @@
 }
 
 func TestBasicSdkWithCc(t *testing.T) {
+	t.Parallel()
 	result := testSdkWithCc(t, `
 		sdk {
 			name: "mysdk",
@@ -281,6 +285,7 @@
 
 // Make sure the sdk can use host specific cc libraries static/shared and both.
 func TestHostSdkWithCc(t *testing.T) {
+	t.Parallel()
 	testSdkWithCc(t, `
 		sdk {
 			name: "mysdk",
@@ -304,6 +309,7 @@
 
 // Make sure the sdk can use cc libraries static/shared and both.
 func TestSdkWithCc(t *testing.T) {
+	t.Parallel()
 	testSdkWithCc(t, `
 		sdk {
 			name: "mysdk",
@@ -334,6 +340,7 @@
 }
 
 func TestSnapshotWithObject(t *testing.T) {
+	t.Parallel()
 	result := testSdkWithCc(t, `
 		sdk {
 			name: "mysdk",
@@ -405,6 +412,7 @@
 }
 
 func TestSnapshotWithCcDuplicateHeaders(t *testing.T) {
+	t.Parallel()
 	result := testSdkWithCc(t, `
 		sdk {
 			name: "mysdk",
@@ -446,6 +454,7 @@
 // handling is tested with the sanitize clauses (but note there's a lot of
 // built-in logic in sanitize.go that can affect those flags).
 func TestSnapshotWithCcSharedLibraryCommonProperties(t *testing.T) {
+	t.Parallel()
 	result := testSdkWithCc(t, `
 		sdk {
 			name: "mysdk",
@@ -559,6 +568,7 @@
 }
 
 func TestSnapshotWithCcBinary(t *testing.T) {
+	t.Parallel()
 	result := testSdkWithCc(t, `
 		module_exports {
 			name: "mymodule_exports",
@@ -623,6 +633,7 @@
 }
 
 func TestMultipleHostOsTypesSnapshotWithCcBinary(t *testing.T) {
+	t.Parallel()
 	result := testSdkWithCc(t, `
 		module_exports {
 			name: "myexports",
@@ -749,6 +760,7 @@
 }
 
 func TestSnapshotWithSingleHostOsType(t *testing.T) {
+	t.Parallel()
 	ctx, config := testSdkContext(`
 		cc_defaults {
 			name: "mydefaults",
@@ -912,6 +924,7 @@
 // Test that we support the necessary flags for the linker binary, which is
 // special in several ways.
 func TestSnapshotWithCcStaticNocrtBinary(t *testing.T) {
+	t.Parallel()
 	result := testSdkWithCc(t, `
 		module_exports {
 			name: "mymodule_exports",
@@ -1014,6 +1027,7 @@
 }
 
 func TestSnapshotWithCcSharedLibrary(t *testing.T) {
+	t.Parallel()
 	result := testSdkWithCc(t, `
 		sdk {
 			name: "mysdk",
@@ -1107,6 +1121,7 @@
 }
 
 func TestSnapshotWithCcSharedLibrarySharedLibs(t *testing.T) {
+	t.Parallel()
 	result := testSdkWithCc(t, `
 		sdk {
 			name: "mysdk",
@@ -1301,6 +1316,7 @@
 }
 
 func TestHostSnapshotWithCcSharedLibrary(t *testing.T) {
+	t.Parallel()
 	result := testSdkWithCc(t, `
 		sdk {
 			name: "mysdk",
@@ -1418,6 +1434,7 @@
 }
 
 func TestMultipleHostOsTypesSnapshotWithCcSharedLibrary(t *testing.T) {
+	t.Parallel()
 	result := testSdkWithCc(t, `
 		sdk {
 			name: "mysdk",
@@ -1543,6 +1560,7 @@
 }
 
 func TestSnapshotWithCcStaticLibrary(t *testing.T) {
+	t.Parallel()
 	result := testSdkWithCc(t, `
 		module_exports {
 			name: "myexports",
@@ -1627,6 +1645,7 @@
 }
 
 func TestHostSnapshotWithCcStaticLibrary(t *testing.T) {
+	t.Parallel()
 	result := testSdkWithCc(t, `
 		module_exports {
 			name: "myexports",
@@ -1741,6 +1760,7 @@
 }
 
 func TestSnapshotWithCcLibrary(t *testing.T) {
+	t.Parallel()
 	result := testSdkWithCc(t, `
 		module_exports {
 			name: "myexports",
@@ -1838,6 +1858,7 @@
 }
 
 func TestHostSnapshotWithMultiLib64(t *testing.T) {
+	t.Parallel()
 	result := testSdkWithCc(t, `
 		module_exports {
 			name: "myexports",
@@ -1945,6 +1966,7 @@
 }
 
 func TestSnapshotWithCcHeadersLibrary(t *testing.T) {
+	t.Parallel()
 	result := testSdkWithCc(t, `
 		sdk {
 			name: "mysdk",
@@ -1993,6 +2015,7 @@
 }
 
 func TestHostSnapshotWithCcHeadersLibrary(t *testing.T) {
+	t.Parallel()
 	result := testSdkWithCc(t, `
 		sdk {
 			name: "mysdk",
@@ -2075,6 +2098,7 @@
 }
 
 func TestDeviceAndHostSnapshotWithCcHeadersLibrary(t *testing.T) {
+	t.Parallel()
 	result := testSdkWithCc(t, `
 		sdk {
 			name: "mysdk",
@@ -2170,6 +2194,7 @@
 }
 
 func TestSystemSharedLibPropagation(t *testing.T) {
+	t.Parallel()
 	result := testSdkWithCc(t, `
 		sdk {
 			name: "mysdk",
@@ -2407,6 +2432,7 @@
 }
 
 func TestStubsLibrary(t *testing.T) {
+	t.Parallel()
 	result := testSdkWithCc(t, `
 		sdk {
 			name: "mysdk",
@@ -2485,6 +2511,7 @@
 }
 
 func TestDeviceAndHostSnapshotWithStubsLibrary(t *testing.T) {
+	t.Parallel()
 	result := testSdkWithCc(t, `
 		sdk {
 			name: "mysdk",
@@ -2601,6 +2628,7 @@
 }
 
 func TestUniqueHostSoname(t *testing.T) {
+	t.Parallel()
 	result := testSdkWithCc(t, `
 		sdk {
 			name: "mysdk",
diff --git a/sdk/exports_test.go b/sdk/exports_test.go
index aa1200f..173ccb9 100644
--- a/sdk/exports_test.go
+++ b/sdk/exports_test.go
@@ -20,6 +20,7 @@
 
 // Ensure that module_exports generates a module_exports_snapshot module.
 func TestModuleExportsSnapshot(t *testing.T) {
+	t.Parallel()
 	packageBp := `
 		module_exports {
 			name: "myexports",
diff --git a/sdk/java_sdk_test.go b/sdk/java_sdk_test.go
index d6828c9..f86ab57 100644
--- a/sdk/java_sdk_test.go
+++ b/sdk/java_sdk_test.go
@@ -92,6 +92,7 @@
 // Contains tests for SDK members provided by the java package.
 
 func TestSdkDependsOnSourceEvenWhenPrebuiltPreferred(t *testing.T) {
+	t.Parallel()
 	result := testSdkWithJava(t, `
 		sdk {
 			name: "mysdk",
@@ -141,6 +142,7 @@
 }
 
 func TestBasicSdkWithJavaLibrary(t *testing.T) {
+	t.Parallel()
 	result := testSdkWithJava(t, `
 		sdk {
 			name: "mysdk",
@@ -220,6 +222,7 @@
 }
 
 func TestSnapshotWithJavaHeaderLibrary(t *testing.T) {
+	t.Parallel()
 	result := testSdkWithJava(t, `
 		sdk {
 			name: "mysdk",
@@ -272,6 +275,7 @@
 }
 
 func TestHostSnapshotWithJavaHeaderLibrary(t *testing.T) {
+	t.Parallel()
 	result := testSdkWithJava(t, `
 		sdk {
 			name: "mysdk",
@@ -332,6 +336,7 @@
 }
 
 func TestDeviceAndHostSnapshotWithJavaHeaderLibrary(t *testing.T) {
+	t.Parallel()
 	result := testSdkWithJava(t, `
 		sdk {
 			name: "mysdk",
@@ -398,6 +403,7 @@
 }
 
 func TestSnapshotWithJavaImplLibrary(t *testing.T) {
+	t.Parallel()
 	result := testSdkWithJava(t, `
 		module_exports {
 			name: "myexports",
@@ -451,6 +457,7 @@
 }
 
 func TestHostSnapshotWithJavaImplLibrary(t *testing.T) {
+	t.Parallel()
 	result := testSdkWithJava(t, `
 		module_exports {
 			name: "myexports",
@@ -511,6 +518,7 @@
 }
 
 func TestSnapshotWithJavaTest(t *testing.T) {
+	t.Parallel()
 	result := testSdkWithJava(t, `
 		module_exports {
 			name: "myexports",
@@ -561,6 +569,7 @@
 }
 
 func TestHostSnapshotWithJavaTest(t *testing.T) {
+	t.Parallel()
 	result := testSdkWithJava(t, `
 		module_exports {
 			name: "myexports",
@@ -633,6 +642,7 @@
 // directly or indirectly from an APEX as droidstubs can never be a part of an
 // apex.
 func TestBasicSdkWithDroidstubs(t *testing.T) {
+	t.Parallel()
 	testSdkWithDroidstubs(t, `
 		sdk {
 				name: "mysdk",
@@ -663,6 +673,7 @@
 }
 
 func TestSnapshotWithDroidstubs(t *testing.T) {
+	t.Parallel()
 	result := testSdkWithDroidstubs(t, `
 		module_exports {
 			name: "myexports",
@@ -708,6 +719,7 @@
 }
 
 func TestHostSnapshotWithDroidstubs(t *testing.T) {
+	t.Parallel()
 	result := testSdkWithDroidstubs(t, `
 		module_exports {
 			name: "myexports",
@@ -762,6 +774,7 @@
 }
 
 func TestSnapshotWithJavaSystemModules(t *testing.T) {
+	t.Parallel()
 	result := testSdkWithJava(t, `
 		sdk {
 			name: "mysdk",
@@ -856,6 +869,7 @@
 }
 
 func TestHostSnapshotWithJavaSystemModules(t *testing.T) {
+	t.Parallel()
 	result := testSdkWithJava(t, `
 		sdk {
 			name: "mysdk",
@@ -934,6 +948,7 @@
 }
 
 func TestDeviceAndHostSnapshotWithOsSpecificMembers(t *testing.T) {
+	t.Parallel()
 	result := testSdkWithJava(t, `
 		module_exports {
 			name: "myexports",
@@ -1061,6 +1076,7 @@
 }
 
 func TestSnapshotWithJavaSdkLibrary(t *testing.T) {
+	t.Parallel()
 	result := testSdkWithJava(t, `
 		sdk {
 			name: "mysdk",
@@ -1165,6 +1181,7 @@
 }
 
 func TestSnapshotWithJavaSdkLibrary_SdkVersion_None(t *testing.T) {
+	t.Parallel()
 	result := testSdkWithJava(t, `
 		sdk {
 			name: "mysdk",
@@ -1229,6 +1246,7 @@
 }
 
 func TestSnapshotWithJavaSdkLibrary_SdkVersion_ForScope(t *testing.T) {
+	t.Parallel()
 	result := testSdkWithJava(t, `
 		sdk {
 			name: "mysdk",
@@ -1296,6 +1314,7 @@
 }
 
 func TestSnapshotWithJavaSdkLibrary_ApiScopes(t *testing.T) {
+	t.Parallel()
 	result := testSdkWithJava(t, `
 		sdk {
 			name: "mysdk",
@@ -1386,6 +1405,7 @@
 }
 
 func TestSnapshotWithJavaSdkLibrary_ModuleLib(t *testing.T) {
+	t.Parallel()
 	result := testSdkWithJava(t, `
 		sdk {
 			name: "mysdk",
@@ -1497,6 +1517,7 @@
 }
 
 func TestSnapshotWithJavaSdkLibrary_SystemServer(t *testing.T) {
+	t.Parallel()
 	result := testSdkWithJava(t, `
 		sdk {
 			name: "mysdk",
@@ -1587,6 +1608,7 @@
 }
 
 func TestSnapshotWithJavaSdkLibrary_NamingScheme(t *testing.T) {
+	t.Parallel()
 	result := testSdkWithJava(t, `
 		sdk {
 			name: "mysdk",
diff --git a/sdk/sdk_test.go b/sdk/sdk_test.go
index 2e6c62a..a6afdc5 100644
--- a/sdk/sdk_test.go
+++ b/sdk/sdk_test.go
@@ -35,6 +35,7 @@
 }
 
 func TestDepNotInRequiredSdks(t *testing.T) {
+	t.Parallel()
 	testSdkError(t, `module "myjavalib".*depends on "otherlib".*that isn't part of the required SDKs:.*`, `
 		sdk {
 			name: "mysdk",
@@ -95,6 +96,7 @@
 // Ensure that prebuilt modules have the same effective visibility as the source
 // modules.
 func TestSnapshotVisibility(t *testing.T) {
+	t.Parallel()
 	packageBp := `
 		package {
 			default_visibility: ["//other/foo"],
@@ -302,6 +304,7 @@
 }
 
 func TestSDkInstall(t *testing.T) {
+	t.Parallel()
 	sdk := `
 		sdk {
 			name: "mysdk",
@@ -346,6 +349,7 @@
 var _ propertiesContainer = (*testPropertiesStruct)(nil)
 
 func TestCommonValueOptimization(t *testing.T) {
+	t.Parallel()
 	common := &testPropertiesStruct{name: "common"}
 	structs := []propertiesContainer{
 		&testPropertiesStruct{
@@ -443,6 +447,7 @@
 }
 
 func TestCommonValueOptimization_InvalidArchSpecificVariants(t *testing.T) {
+	t.Parallel()
 	common := &testPropertiesStruct{name: "common"}
 	structs := []propertiesContainer{
 		&testPropertiesStruct{
diff --git a/sh/sh_binary_test.go b/sh/sh_binary_test.go
index 0aa607b..e9086be 100644
--- a/sh/sh_binary_test.go
+++ b/sh/sh_binary_test.go
@@ -61,6 +61,7 @@
 }
 
 func TestShTestSubDir(t *testing.T) {
+	t.Parallel()
 	ctx, config := testShBinary(t, `
 		sh_test {
 			name: "foo",
@@ -81,6 +82,7 @@
 }
 
 func TestShTest(t *testing.T) {
+	t.Parallel()
 	ctx, config := testShBinary(t, `
 		sh_test {
 			name: "foo",
@@ -111,6 +113,7 @@
 }
 
 func TestShTest_dataModules(t *testing.T) {
+	t.Parallel()
 	ctx, config := testShBinary(t, `
 		sh_test {
 			name: "foo",
@@ -170,6 +173,7 @@
 }
 
 func TestShTestHost(t *testing.T) {
+	t.Parallel()
 	ctx, _ := testShBinary(t, `
 		sh_test_host {
 			name: "foo",
@@ -190,6 +194,7 @@
 }
 
 func TestShTestHost_dataDeviceModules(t *testing.T) {
+	t.Parallel()
 	ctx, config := testShBinary(t, `
 		sh_test_host {
 			name: "foo",
diff --git a/symbol_inject/elf_test.go b/symbol_inject/elf_test.go
index aceee44..316c69a 100644
--- a/symbol_inject/elf_test.go
+++ b/symbol_inject/elf_test.go
@@ -20,6 +20,7 @@
 )
 
 func TestElfSymbolTable(t *testing.T) {
+	t.Parallel()
 	testCases := []struct {
 		file         *mockElfFile
 		symbol       string
diff --git a/symbol_inject/macho_test.go b/symbol_inject/macho_test.go
index 50df131..d5b962d 100644
--- a/symbol_inject/macho_test.go
+++ b/symbol_inject/macho_test.go
@@ -21,6 +21,7 @@
 )
 
 func TestMachoSymbolTable(t *testing.T) {
+	t.Parallel()
 	testCases := []struct {
 		file         *macho.File
 		symbol       string
diff --git a/symbol_inject/pe_test.go b/symbol_inject/pe_test.go
index df7bac3..16b2009 100644
--- a/symbol_inject/pe_test.go
+++ b/symbol_inject/pe_test.go
@@ -21,6 +21,7 @@
 )
 
 func TestPESymbolTable(t *testing.T) {
+	t.Parallel()
 	testCases := []struct {
 		file         *pe.File
 		symbol       string
diff --git a/symbol_inject/symbol_inject_test.go b/symbol_inject/symbol_inject_test.go
index 6607e65..ab874b9 100644
--- a/symbol_inject/symbol_inject_test.go
+++ b/symbol_inject/symbol_inject_test.go
@@ -21,6 +21,7 @@
 )
 
 func TestCopyAndInject(t *testing.T) {
+	t.Parallel()
 	s := "abcdefghijklmnopqrstuvwxyz"
 	testCases := []struct {
 		offset   uint64
diff --git a/sysprop/sysprop_test.go b/sysprop/sysprop_test.go
index 711129c..7df0f3d 100644
--- a/sysprop/sysprop_test.go
+++ b/sysprop/sysprop_test.go
@@ -158,6 +158,7 @@
 }
 
 func TestSyspropLibrary(t *testing.T) {
+	t.Parallel()
 	ctx := test(t, `
 		sysprop_library {
 			name: "sysprop-platform",
diff --git a/ui/build/cleanbuild_test.go b/ui/build/cleanbuild_test.go
index 89f4ad9..be60362 100644
--- a/ui/build/cleanbuild_test.go
+++ b/ui/build/cleanbuild_test.go
@@ -27,6 +27,7 @@
 )
 
 func TestCleanOldFiles(t *testing.T) {
+	t.Parallel()
 	dir, err := ioutil.TempDir("", "testcleanoldfiles")
 	if err != nil {
 		t.Fatal(err)
diff --git a/ui/build/config_test.go b/ui/build/config_test.go
index 7b14c47..35c6ed4 100644
--- a/ui/build/config_test.go
+++ b/ui/build/config_test.go
@@ -39,6 +39,7 @@
 }
 
 func TestConfigParseArgsJK(t *testing.T) {
+	t.Parallel()
 	ctx := testContext()
 
 	testCases := []struct {
@@ -111,6 +112,7 @@
 }
 
 func TestConfigParseArgsVars(t *testing.T) {
+	t.Parallel()
 	ctx := testContext()
 
 	testCases := []struct {
@@ -638,6 +640,7 @@
 }
 
 func TestConfigSplitArgs(t *testing.T) {
+	t.Parallel()
 	tests := []struct {
 		// ********* Setup *********
 		// Test description.
diff --git a/ui/build/environment_test.go b/ui/build/environment_test.go
index 37f500f..d8f83f4 100644
--- a/ui/build/environment_test.go
+++ b/ui/build/environment_test.go
@@ -21,6 +21,7 @@
 )
 
 func TestEnvUnset(t *testing.T) {
+	t.Parallel()
 	initial := &Environment{"TEST=1", "TEST2=0"}
 	initial.Unset("TEST")
 	got := initial.Environ()
@@ -30,6 +31,7 @@
 }
 
 func TestEnvUnsetMissing(t *testing.T) {
+	t.Parallel()
 	initial := &Environment{"TEST2=0"}
 	initial.Unset("TEST")
 	got := initial.Environ()
@@ -39,6 +41,7 @@
 }
 
 func TestEnvSet(t *testing.T) {
+	t.Parallel()
 	initial := &Environment{}
 	initial.Set("TEST", "0")
 	got := initial.Environ()
@@ -48,6 +51,7 @@
 }
 
 func TestEnvSetDup(t *testing.T) {
+	t.Parallel()
 	initial := &Environment{"TEST=1"}
 	initial.Set("TEST", "0")
 	got := initial.Environ()
@@ -57,6 +61,7 @@
 }
 
 func TestEnvAllow(t *testing.T) {
+	t.Parallel()
 	initial := &Environment{"TEST=1", "TEST2=0", "TEST3=2"}
 	initial.Allow("TEST3", "TEST")
 	got := initial.Environ()
@@ -73,6 +78,7 @@
 `
 
 func TestEnvAppendFromKati(t *testing.T) {
+	t.Parallel()
 	initial := &Environment{"CLANG=/usr/bin/clang", "TEST=0"}
 	err := initial.appendFromKati(strings.NewReader(testKatiEnvFileContents))
 	if err != nil {
diff --git a/ui/build/paths/logs_test.go b/ui/build/paths/logs_test.go
index 3b1005f..d5921a8 100644
--- a/ui/build/paths/logs_test.go
+++ b/ui/build/paths/logs_test.go
@@ -26,6 +26,7 @@
 )
 
 func TestSendLog(t *testing.T) {
+	t.Parallel()
 	t.Run("Short name", func(t *testing.T) {
 		d, err := ioutil.TempDir("", "s")
 		if err != nil {
@@ -105,6 +106,7 @@
 }
 
 func TestSendLogError(t *testing.T) {
+	t.Parallel()
 	d, err := ioutil.TempDir("", "log_socket")
 	if err != nil {
 		t.Fatal(err)
diff --git a/ui/build/proc_sync_test.go b/ui/build/proc_sync_test.go
index 857bea3..1b52fce 100644
--- a/ui/build/proc_sync_test.go
+++ b/ui/build/proc_sync_test.go
@@ -108,6 +108,7 @@
 
 // simple test
 func TestGetLock(t *testing.T) {
+	t.Parallel()
 	lockfile := lockOrFail(t)
 	defer removeTestLock(lockfile)
 }
@@ -119,6 +120,7 @@
 var busyStatus = 2
 
 func TestTrylock(t *testing.T) {
+	t.Parallel()
 	lockpath := os.Getenv(lockPathVariable)
 	if len(lockpath) < 1 {
 		checkTrylockMainProcess(t)
@@ -204,6 +206,7 @@
 }
 
 func TestLockFirstTrySucceeds(t *testing.T) {
+	t.Parallel()
 	noopLogger := logger.New(ioutil.Discard)
 	lock := testLockCountingTo(0)
 	waiter := newCountWaiter(0)
@@ -216,6 +219,7 @@
 	}
 }
 func TestLockThirdTrySucceeds(t *testing.T) {
+	t.Parallel()
 	noopLogger := logger.New(ioutil.Discard)
 	lock := testLockCountingTo(2)
 	waiter := newCountWaiter(2)
@@ -228,6 +232,7 @@
 	}
 }
 func TestLockTimedOut(t *testing.T) {
+	t.Parallel()
 	noopLogger := logger.New(ioutil.Discard)
 	lock := testLockCountingTo(3)
 	waiter := newCountWaiter(2)
diff --git a/ui/build/rbe_test.go b/ui/build/rbe_test.go
index 8ff96bc..fa371bb 100644
--- a/ui/build/rbe_test.go
+++ b/ui/build/rbe_test.go
@@ -26,6 +26,7 @@
 )
 
 func TestDumpRBEMetrics(t *testing.T) {
+	t.Parallel()
 	ctx := testContext()
 	tests := []struct {
 		description string
@@ -81,6 +82,7 @@
 }
 
 func TestDumpRBEMetricsErrors(t *testing.T) {
+	t.Parallel()
 	ctx := testContext()
 	tests := []struct {
 		description      string
diff --git a/ui/build/util_test.go b/ui/build/util_test.go
index b22e997..a06c3e9 100644
--- a/ui/build/util_test.go
+++ b/ui/build/util_test.go
@@ -25,6 +25,7 @@
 )
 
 func TestEnsureEmptyDirs(t *testing.T) {
+	t.Parallel()
 	ctx := testContext()
 	defer logger.Recover(func(err error) {
 		t.Error(err)
@@ -52,6 +53,7 @@
 }
 
 func TestCopyFile(t *testing.T) {
+	t.Parallel()
 	tmpDir, err := ioutil.TempDir("", "test_copy_file")
 	if err != nil {
 		t.Fatalf("failed to create temporary directory to hold test text files: %v", err)
@@ -86,6 +88,7 @@
 }
 
 func TestCopyFileErrors(t *testing.T) {
+	t.Parallel()
 	tmpDir, err := ioutil.TempDir("", "test_copy_file_errors")
 	if err != nil {
 		t.Fatalf("failed to create temporary directory to hold test text files: %v", err)
diff --git a/ui/logger/logger_test.go b/ui/logger/logger_test.go
index 044e6f0..7b3791c 100644
--- a/ui/logger/logger_test.go
+++ b/ui/logger/logger_test.go
@@ -29,6 +29,7 @@
 )
 
 func TestCreateFileWithRotation(t *testing.T) {
+	t.Parallel()
 	dir, err := ioutil.TempDir("", "test-rotation")
 	if err != nil {
 		t.Fatalf("Failed to get TempDir: %v", err)
@@ -96,6 +97,7 @@
 }
 
 func TestPanic(t *testing.T) {
+	t.Parallel()
 	if os.Getenv("ACTUALLY_PANIC") == "1" {
 		panicValue := "foo"
 		log := New(&bytes.Buffer{})
@@ -128,6 +130,7 @@
 }
 
 func TestFatal(t *testing.T) {
+	t.Parallel()
 	if os.Getenv("ACTUALLY_FATAL") == "1" {
 		log := New(&bytes.Buffer{})
 		defer func() {
@@ -150,6 +153,7 @@
 }
 
 func TestNonFatal(t *testing.T) {
+	t.Parallel()
 	if os.Getenv("ACTUAL_TEST") == "1" {
 		log := New(&bytes.Buffer{})
 		defer log.Cleanup()
@@ -166,6 +170,7 @@
 }
 
 func TestRecoverFatal(t *testing.T) {
+	t.Parallel()
 	log := New(&bytes.Buffer{})
 	defer func() {
 		if p := recover(); p != nil {
@@ -182,6 +187,7 @@
 }
 
 func TestRecoverNonFatal(t *testing.T) {
+	t.Parallel()
 	log := New(&bytes.Buffer{})
 	defer func() {
 		if p := recover(); p == nil {
@@ -198,6 +204,7 @@
 }
 
 func TestRuntimePanic(t *testing.T) {
+	t.Parallel()
 	defer func() {
 		if p := recover(); p == nil {
 			t.Errorf("Panic not thrown")
diff --git a/ui/metrics/time_test.go b/ui/metrics/time_test.go
index d73080a..16d6a20 100644
--- a/ui/metrics/time_test.go
+++ b/ui/metrics/time_test.go
@@ -22,6 +22,7 @@
 )
 
 func TestEnd(t *testing.T) {
+	t.Parallel()
 	startTime := time.Date(2020, time.July, 13, 13, 0, 0, 0, time.UTC)
 	dur := time.Nanosecond * 10
 	initialNow := _now
diff --git a/ui/status/critical_path_test.go b/ui/status/critical_path_test.go
index 965e0ad..e44298b 100644
--- a/ui/status/critical_path_test.go
+++ b/ui/status/critical_path_test.go
@@ -51,6 +51,7 @@
 }
 
 func TestCriticalPath(t *testing.T) {
+	t.Parallel()
 	tests := []struct {
 		name     string
 		msgs     func(*testCriticalPath)
diff --git a/ui/status/kati_test.go b/ui/status/kati_test.go
index f2cb813..24a38b3 100644
--- a/ui/status/kati_test.go
+++ b/ui/status/kati_test.go
@@ -43,6 +43,7 @@
 func (l *lastOutput) Flush() {}
 
 func TestKatiNormalCase(t *testing.T) {
+	t.Parallel()
 	status := &Status{}
 	output := &lastOutput{}
 	status.AddOutput(output)
@@ -110,6 +111,7 @@
 }
 
 func TestKatiExtraIncludes(t *testing.T) {
+	t.Parallel()
 	status := &Status{}
 	output := &lastOutput{}
 	status.AddOutput(output)
@@ -156,6 +158,7 @@
 }
 
 func TestKatiFailOnError(t *testing.T) {
+	t.Parallel()
 	status := &Status{}
 	output := &lastOutput{}
 	status.AddOutput(output)
diff --git a/ui/status/ninja_test.go b/ui/status/ninja_test.go
index c400c97..232be55 100644
--- a/ui/status/ninja_test.go
+++ b/ui/status/ninja_test.go
@@ -26,6 +26,7 @@
 
 // Tests that closing the ninja reader when nothing has opened the other end of the fifo is fast.
 func TestNinjaReader_Close(t *testing.T) {
+	t.Parallel()
 	tempDir, err := ioutil.TempDir("", "ninja_test")
 	if err != nil {
 		t.Fatal(err)
diff --git a/ui/status/status_test.go b/ui/status/status_test.go
index 9494582..2a90c7b 100644
--- a/ui/status/status_test.go
+++ b/ui/status/status_test.go
@@ -53,6 +53,7 @@
 }
 
 func TestBasicUse(t *testing.T) {
+	t.Parallel()
 	status := &Status{}
 	counts := &counterOutput{}
 	status.AddOutput(counts)
@@ -101,6 +102,7 @@
 
 // For when a tool claims to have 2 actions, but finishes after one.
 func TestFinishEarly(t *testing.T) {
+	t.Parallel()
 	status := &Status{}
 	counts := &counterOutput{}
 	status.AddOutput(counts)
@@ -129,6 +131,7 @@
 
 // For when a tool claims to have 1 action, but starts two.
 func TestExtraActions(t *testing.T) {
+	t.Parallel()
 	status := &Status{}
 	counts := &counterOutput{}
 	status.AddOutput(counts)
@@ -149,6 +152,7 @@
 
 // When a tool calls Finish() with a running Action
 func TestRunningWhenFinished(t *testing.T) {
+	t.Parallel()
 	status := &Status{}
 	counts := &counterOutput{}
 	status.AddOutput(counts)
diff --git a/ui/terminal/status_test.go b/ui/terminal/status_test.go
index aa69dff..da10912 100644
--- a/ui/terminal/status_test.go
+++ b/ui/terminal/status_test.go
@@ -25,6 +25,7 @@
 )
 
 func TestStatusOutput(t *testing.T) {
+	t.Parallel()
 	tests := []struct {
 		name   string
 		calls  func(stat status.StatusOutput)
@@ -266,6 +267,7 @@
 }
 
 func TestSmartStatusOutputWidthChange(t *testing.T) {
+	t.Parallel()
 	os.Setenv(tableHeightEnVar, "")
 
 	smart := &fakeSmartTerminal{termWidth: 40}
diff --git a/ui/terminal/util_test.go b/ui/terminal/util_test.go
index 82bde7c..b01b133 100644
--- a/ui/terminal/util_test.go
+++ b/ui/terminal/util_test.go
@@ -19,6 +19,7 @@
 )
 
 func TestStripAnsiEscapes(t *testing.T) {
+	t.Parallel()
 	testcases := []struct {
 		input  string
 		output string
diff --git a/xml/xml_test.go b/xml/xml_test.go
index abcb108..d9a6cee 100644
--- a/xml/xml_test.go
+++ b/xml/xml_test.go
@@ -78,6 +78,7 @@
 
 // Minimal test
 func TestPrebuiltEtcXml(t *testing.T) {
+	t.Parallel()
 	ctx := testXml(t, `
 		prebuilt_etc_xml {
 			name: "foo.xml",
diff --git a/zip/zip_test.go b/zip/zip_test.go
index 302a749..9e1ef90 100644
--- a/zip/zip_test.go
+++ b/zip/zip_test.go
@@ -102,6 +102,7 @@
 }
 
 func TestZip(t *testing.T) {
+	t.Parallel()
 	testCases := []struct {
 		name               string
 		args               *FileArgsBuilder
@@ -530,6 +531,7 @@
 }
 
 func TestReadRespFile(t *testing.T) {
+	t.Parallel()
 	testCases := []struct {
 		name, in string
 		out      []string
@@ -602,6 +604,7 @@
 }
 
 func TestSrcJar(t *testing.T) {
+	t.Parallel()
 	mockFs := pathtools.MockFs(map[string][]byte{
 		"wrong_package.java":       []byte("package foo;"),
 		"foo/correct_package.java": []byte("package foo;"),