Revert "Revert "Revert some flaky unloading""
Still some issues with 136-daemon-jni-shutdown
bug:28406866
This reverts commit 9e726e874580f1e8b2e0bfa63d2e9a3ac911cd1c.
Change-Id: I76e7ba47e30cf97ecd074d5c2aff41cda8edac59
diff --git a/runtime/common_runtime_test.cc b/runtime/common_runtime_test.cc
index 5bdb36c..f58af5a 100644
--- a/runtime/common_runtime_test.cc
+++ b/runtime/common_runtime_test.cc
@@ -418,6 +418,26 @@
(*icu_cleanup_fn)();
Runtime::Current()->GetHeap()->VerifyHeap(); // Check for heap corruption after the test
+
+ // Manually closing the JNI libraries.
+ // Runtime does not support repeatedly doing JNI->CreateVM, thus we need to manually clean up the
+ // dynamic linking loader so that gtests would not fail.
+ // Bug: 25785594
+ if (runtime_->IsStarted()) {
+ {
+ // We retrieve the handle by calling dlopen on the library. To close it, we need to call
+ // dlclose twice, the first time to undo our dlopen and the second time to actually unload it.
+ // See man dlopen.
+ void* handle = dlopen("libjavacore.so", RTLD_LAZY);
+ dlclose(handle);
+ CHECK_EQ(0, dlclose(handle));
+ }
+ {
+ void* handle = dlopen("libopenjdkd.so", RTLD_LAZY);
+ dlclose(handle);
+ CHECK_EQ(0, dlclose(handle));
+ }
+ }
}
static std::string GetDexFileName(const std::string& jar_prefix, bool host) {
diff --git a/runtime/java_vm_ext.cc b/runtime/java_vm_ext.cc
index c216412..d983a9f 100644
--- a/runtime/java_vm_ext.cc
+++ b/runtime/java_vm_ext.cc
@@ -74,10 +74,6 @@
if (self != nullptr) {
self->GetJniEnv()->DeleteWeakGlobalRef(class_loader_);
}
-
- if (!needs_native_bridge_) {
- android::CloseNativeLibrary(handle_);
- }
}
jweak GetClassLoader() const {
@@ -275,7 +271,8 @@
REQUIRES(!Locks::jni_libraries_lock_)
SHARED_REQUIRES(Locks::mutator_lock_) {
ScopedObjectAccessUnchecked soa(Thread::Current());
- std::vector<SharedLibrary*> unload_libraries;
+ typedef void (*JNI_OnUnloadFn)(JavaVM*, void*);
+ std::vector<JNI_OnUnloadFn> unload_functions;
{
MutexLock mu(soa.Self(), *Locks::jni_libraries_lock_);
for (auto it = libraries_.begin(); it != libraries_.end(); ) {
@@ -286,7 +283,15 @@
// the native libraries of the boot class loader.
if (class_loader != nullptr &&
soa.Self()->IsJWeakCleared(class_loader)) {
- unload_libraries.push_back(library);
+ void* const sym = library->FindSymbol("JNI_OnUnload", nullptr);
+ if (sym == nullptr) {
+ VLOG(jni) << "[No JNI_OnUnload found in \"" << library->GetPath() << "\"]";
+ } else {
+ VLOG(jni) << "[JNI_OnUnload found for \"" << library->GetPath() << "\"]";
+ JNI_OnUnloadFn jni_on_unload = reinterpret_cast<JNI_OnUnloadFn>(sym);
+ unload_functions.push_back(jni_on_unload);
+ }
+ delete library;
it = libraries_.erase(it);
} else {
++it;
@@ -294,17 +299,9 @@
}
}
// Do this without holding the jni libraries lock to prevent possible deadlocks.
- typedef void (*JNI_OnUnloadFn)(JavaVM*, void*);
- for (auto library : unload_libraries) {
- void* const sym = library->FindSymbol("JNI_OnUnload", nullptr);
- if (sym == nullptr) {
- VLOG(jni) << "[No JNI_OnUnload found in \"" << library->GetPath() << "\"]";
- } else {
- VLOG(jni) << "[JNI_OnUnload found for \"" << library->GetPath() << "\"]: Calling...";
- JNI_OnUnloadFn jni_on_unload = reinterpret_cast<JNI_OnUnloadFn>(sym);
- jni_on_unload(soa.Vm(), nullptr);
- }
- delete library;
+ for (JNI_OnUnloadFn fn : unload_functions) {
+ VLOG(jni) << "Calling JNI_OnUnload";
+ (*fn)(soa.Vm(), nullptr);
}
}
