diff --git a/test/003-omnibus-opcodes/build b/test/003-omnibus-opcodes/build
index faa2983..56e8784 100644
--- a/test/003-omnibus-opcodes/build
+++ b/test/003-omnibus-opcodes/build
@@ -23,8 +23,8 @@
 ${JAVAC} -d classes `find src2 -name '*.java'`
 
 if [ ${USE_JACK} = "true" ]; then
-  ${JILL} classes --output classes.jack
-  ${JACK} --import classes.jack --output-dex .
+  jar cf classes.jill.jar -C classes .
+  ${JACK} --import classes.jill.jar --output-dex .
 else
   ${DX} -JXmx256m --debug --dex --output=classes.dex classes
   fi
diff --git a/test/005-annotations/build b/test/005-annotations/build
index 057b351..93bee50 100644
--- a/test/005-annotations/build
+++ b/test/005-annotations/build
@@ -29,8 +29,8 @@
 rm 'classes/android/test/anno/ClassWithInnerAnnotationClass$MissingInnerAnnotationClass.class'
 
 if [ ${USE_JACK} = "true" ]; then
-  ${JILL} classes --output classes.jack
-  ${JACK} --import classes.jack --output-dex .
+  jar cf classes.jill.jar -C classes .
+  ${JACK} --import classes.jill.jar --output-dex .
 else
   ${DX} -JXmx256m --debug --dex --output=classes.dex classes
 fi
diff --git a/test/022-interface/build b/test/022-interface/build
index 3f8915c..5cfc7f2 100644
--- a/test/022-interface/build
+++ b/test/022-interface/build
@@ -20,8 +20,8 @@
 # Use classes that are compiled with ecj that exposes an invokeinterface
 # issue when interfaces override methods in Object
 if [ ${USE_JACK} = "true" ]; then
-  ${JILL} classes --output classes.jack
-  ${JACK} --import classes.jack --output-dex .
+  jar cf classes.jill.jar -C classes .
+  ${JACK} --import classes.jill.jar --output-dex .
 else
   ${DX} --debug --dex --dump-to=classes.lst --output=classes.dex classes
 fi
diff --git a/test/085-old-style-inner-class/build b/test/085-old-style-inner-class/build
index 6f50a76..21dc662 100644
--- a/test/085-old-style-inner-class/build
+++ b/test/085-old-style-inner-class/build
@@ -23,8 +23,8 @@
 ${JAVAC} -source 1.4 -target 1.4 -d classes `find src -name '*.java'`
 
 if [ ${USE_JACK} = "true" ]; then
-  ${JILL} classes --output classes.jack
-  ${JACK} --import classes.jack --output-dex .
+  jar cf classes.jill.jar -C classes .
+  ${JACK} --import classes.jill.jar --output-dex .
 else
   # Suppress stderr to keep the inner class warnings out of the expected output.
   ${DX} --debug --dex --dump-to=classes.lst --output=classes.dex --dump-width=1000 classes 2>/dev/null
diff --git a/test/091-override-package-private-method/build b/test/091-override-package-private-method/build
index 5a340dc..069c763 100755
--- a/test/091-override-package-private-method/build
+++ b/test/091-override-package-private-method/build
@@ -25,13 +25,13 @@
 
 if [ ${USE_JACK} = "true" ]; then
   # Create .jack files from classes generated with javac.
-  ${JILL} classes --output classes.jack
-  ${JILL} classes-ex --output classes-ex.jack
+  jar cf classes.jill.jar -C classes .
+  jar cf classes-ex.jill.jar -C classes-ex .
 
   # Create DEX files from .jack files.
-  ${JACK} --import classes.jack --output-dex .
+  ${JACK} --import classes.jill.jar --output-dex .
   zip $TEST_NAME.jar classes.dex
-  ${JACK} --import classes-ex.jack --output-dex .
+  ${JACK} --import classes-ex.jill.jar --output-dex .
   zip ${TEST_NAME}-ex.jar classes.dex
 else
   if [ ${NEED_DEX} = "true" ]; then
diff --git a/test/097-duplicate-method/build b/test/097-duplicate-method/build
index a855873..4525549 100644
--- a/test/097-duplicate-method/build
+++ b/test/097-duplicate-method/build
@@ -23,10 +23,10 @@
   ${JACK} --output-jack src.jack src
 
   ${JASMIN} -d classes src/*.j
-  ${JILL} classes --output jasmin.jack
+  jar cf jasmin.jill.jar -C classes .
 
   # We set jack.import.type.policy=keep-first to consider class definitions from jasmin first.
-  ${JACK} --import jasmin.jack --import src.jack -D jack.import.type.policy=keep-first --output-dex .
+  ${JACK} --import jasmin.jill.jar --import src.jack -D jack.import.type.policy=keep-first --output-dex .
 else
   ${JAVAC} -d classes src/*.java
   ${JASMIN} -d classes src/*.j
diff --git a/test/111-unresolvable-exception/build b/test/111-unresolvable-exception/build
index e772fb8..58ac26d 100644
--- a/test/111-unresolvable-exception/build
+++ b/test/111-unresolvable-exception/build
@@ -22,8 +22,8 @@
 rm classes/TestException.class
 
 if [ ${USE_JACK} = "true" ]; then
-  ${JILL} classes --output classes.jack
-  ${JACK} --import classes.jack --output-dex .
+  jar cf classes.jill.jar -C classes .
+  ${JACK} --import classes.jill.jar --output-dex .
 else
   ${DX} -JXmx256m --debug --dex --dump-to=classes.lst --output=classes.dex classes
 fi
diff --git a/test/113-multidex/build b/test/113-multidex/build
index 8ef5c0e..3137df3 100644
--- a/test/113-multidex/build
+++ b/test/113-multidex/build
@@ -29,13 +29,13 @@
 
 if [ ${USE_JACK} = "true" ]; then
   # Create .jack files from classes generated with javac.
-  ${JILL} classes --output classes.jack
-  ${JILL} classes2 --output classes2.jack
+  jar cf classes.jill.jar -C classes .
+  jar cf classes2.jill.jar -C classes2 .
 
   # Create DEX files from .jack files.
-  ${JACK} --import classes.jack --output-dex .
+  ${JACK} --import classes.jill.jar --output-dex .
   mv classes.dex classes-1.dex
-  ${JACK} --import classes2.jack --output-dex .
+  ${JACK} --import classes2.jill.jar --output-dex .
   mv classes.dex classes2.dex
   mv classes-1.dex classes.dex
 else
diff --git a/test/121-modifiers/build b/test/121-modifiers/build
index 85b69e9..771dd51 100644
--- a/test/121-modifiers/build
+++ b/test/121-modifiers/build
@@ -31,9 +31,9 @@
 # mv Main.class A.class A\$B.class A\$C.class classes/
 
 if [ ${USE_JACK} = "true" ]; then
-  ${JILL} classes --output classes.jack
+  jar cf classes.jill.jar -C classes .
   # Workaround b/19561685: disable sanity checks to produce a DEX file with invalid modifiers.
-  ${JACK} --sanity-checks off --import classes.jack --output-dex .
+  ${JACK} --sanity-checks off --import classes.jill.jar --output-dex .
 else
   ${DX} --debug --dex --dump-to=classes.lst --output=classes.dex classes
 fi
diff --git a/test/124-missing-classes/build b/test/124-missing-classes/build
index b92ecf9..0a340a2 100644
--- a/test/124-missing-classes/build
+++ b/test/124-missing-classes/build
@@ -27,8 +27,8 @@
 rm 'classes/Main$MissingInnerClass.class'
 
 if [ ${USE_JACK} = "true" ]; then
-  ${JILL} classes --output classes.jack
-  ${JACK} --import classes.jack --output-dex .
+  jar cf classes.jill.jar -C classes .
+  ${JACK} --import classes.jill.jar --output-dex .
 else
   ${DX} -JXmx256m --debug --dex --output=classes.dex classes
 fi
diff --git a/test/126-miranda-multidex/build b/test/126-miranda-multidex/build
index b7f2118..35f0276 100644
--- a/test/126-miranda-multidex/build
+++ b/test/126-miranda-multidex/build
@@ -29,13 +29,13 @@
 
 if [ ${USE_JACK} = "true" ]; then
   # Create .jack files from classes generated with javac.
-  ${JILL} classes --output classes.jack
-  ${JILL} classes2 --output classes2.jack
+  jar cf classes.jill.jar -C classes .
+  jar cf classes2.jill.jar -C classes2 .
 
   # Create DEX files from .jack files.
-  ${JACK} --import classes.jack --output-dex .
+  ${JACK} --import classes.jill.jar --output-dex .
   mv classes.dex classes-1.dex
-  ${JACK} --import classes2.jack --output-dex .
+  ${JACK} --import classes2.jill.jar --output-dex .
   mv classes.dex classes2.dex
   mv classes-1.dex classes.dex
 else
diff --git a/test/127-checker-secondarydex/build b/test/127-checker-secondarydex/build
index 0d9f4d6..8393f34 100755
--- a/test/127-checker-secondarydex/build
+++ b/test/127-checker-secondarydex/build
@@ -25,13 +25,13 @@
 
 if [ ${USE_JACK} = "true" ]; then
   # Create .jack files from classes generated with javac.
-  ${JILL} classes --output classes.jack
-  ${JILL} classes-ex --output classes-ex.jack
+  jar cf classes.jill.jar -C classes .
+  jar cf classes-ex.jill.jar -C classes-ex .
 
   # Create DEX files from .jack files.
-  ${JACK} --import classes.jack --output-dex .
+  ${JACK} --import classes.jill.jar --output-dex .
   zip $TEST_NAME.jar classes.dex
-  ${JACK} --import classes-ex.jack --output-dex .
+  ${JACK} --import classes-ex.jill.jar --output-dex .
   zip ${TEST_NAME}-ex.jar classes.dex
 else
   if [ ${NEED_DEX} = "true" ]; then
diff --git a/test/529-checker-unresolved/build b/test/529-checker-unresolved/build
index 8c3c4f8..c3df20f 100644
--- a/test/529-checker-unresolved/build
+++ b/test/529-checker-unresolved/build
@@ -30,13 +30,13 @@
 
 if [ ${USE_JACK} = "true" ]; then
   # Create .jack files from classes generated with javac.
-  ${JILL} classes --output classes.jack
-  ${JILL} classes-ex --output classes-ex.jack
+  jar cf classes.jill.jar -C classes .
+  jar cf classes-ex.jill.jar -C classes-ex .
 
   # Create DEX files from .jack files.
-  ${JACK} --import classes.jack --output-dex .
+  ${JACK} --import classes.jill.jar --output-dex .
   zip $TEST_NAME.jar classes.dex
-  ${JACK} --import classes-ex.jack --output-dex .
+  ${JACK} --import classes-ex.jill.jar --output-dex .
   zip ${TEST_NAME}-ex.jar classes.dex
 else
   if [ ${NEED_DEX} = "true" ]; then
diff --git a/test/Android.run-test.mk b/test/Android.run-test.mk
index b3560b6..364be59 100644
--- a/test/Android.run-test.mk
+++ b/test/Android.run-test.mk
@@ -42,8 +42,7 @@
 
 ifeq ($(ANDROID_COMPILE_WITH_JACK),true)
   TEST_ART_RUN_TEST_DEPENDENCIES += \
-    $(JACK) \
-    $(JILL_JAR)
+    $(JACK)
   TEST_ART_RUN_TEST_ORDERONLY_DEPENDENCIES += setup-jack-server
 endif
 
@@ -72,8 +71,8 @@
 	  DXMERGER=$(abspath $(HOST_OUT_EXECUTABLES)/dexmerger) \
 	  JACK_VERSION=$(JACK_DEFAULT_VERSION) \
 	  JACK=$(abspath $(JACK)) \
+	  JACK_VERSION=$(JACK_DEFAULT_VERSION) \
 	  JACK_CLASSPATH=$(TARGET_JACK_CLASSPATH) \
-	  JILL_JAR=$(abspath $(JILL_JAR)) \
 	  $(LOCAL_PATH)/run-test $$(PRIVATE_RUN_TEST_OPTIONS) --output-path $$(abspath $$(dir $$@)) $(1)
 	$(hide) touch $$@
 
@@ -962,8 +961,8 @@
 	    DXMERGER=$(abspath $(HOST_OUT_EXECUTABLES)/dexmerger) \
 	    JACK_VERSION=$(JACK_DEFAULT_VERSION) \
 	    JACK=$(abspath $(JACK)) \
+	    JACK_VERSION=$(JACK_DEFAULT_VERSION) \
 	    JACK_CLASSPATH=$$(PRIVATE_JACK_CLASSPATH) \
-	    JILL_JAR=$(abspath $(JILL_JAR)) \
 	    art/test/run-test $$(PRIVATE_RUN_TEST_OPTIONS) $(12) \
 	      && $$(call ART_TEST_PASSED,$$@) || $$(call ART_TEST_FAILED,$$@)
 	$$(hide) (echo $(MAKECMDGOALS) | grep -q $$@ && \
diff --git a/test/run-test b/test/run-test
index faa597e..f1875d7 100755
--- a/test/run-test
+++ b/test/run-test
@@ -88,13 +88,7 @@
   export JACK_CLASSPATH="${OUT_DIR:-$ANDROID_BUILD_TOP/out}/host/common/obj/JAVA_LIBRARIES/core-libart-hostdex_intermediates/classes.jack:${OUT_DIR:-$ANDROID_BUILD_TOP/out}/host/common/obj/JAVA_LIBRARIES/core-oj-hostdex_intermediates/classes.jack"
 fi
 
-# If JILL_JAR is not set, assume it is located in the prebuilts directory.
-if [ -z "$JILL_JAR" ]; then
-  export JILL_JAR="$ANDROID_BUILD_TOP/prebuilts/sdk/tools/jill.jar"
-fi
-
 export JACK="$JACK -g -cp $JACK_CLASSPATH"
-export JILL="java -jar $JILL_JAR"
 
 info="info.txt"
 build="build"