diff --git a/core/base_rules.mk b/core/base_rules.mk
index f33ebf1..6fc5eaf 100644
--- a/core/base_rules.mk
+++ b/core/base_rules.mk
@@ -43,13 +43,6 @@
 
 my_module_tags := $(LOCAL_MODULE_TAGS)
 
-LOCAL_JACK_ENABLED := $(strip $(LOCAL_JACK_ENABLED))
-ifneq ($(LOCAL_JACK_ENABLED),full)
-ifneq ($(LOCAL_JACK_ENABLED),incremental)
-LOCAL_JACK_ENABLED :=
-endif
-endif
-
 ###########################################################
 ## Validate and define fallbacks for input LOCAL_* variables.
 ###########################################################
diff --git a/core/configure_local_jack.mk b/core/configure_local_jack.mk
new file mode 100644
index 0000000..159fac4
--- /dev/null
+++ b/core/configure_local_jack.mk
@@ -0,0 +1,22 @@
+#
+# Copyright (C) 2008 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+LOCAL_JACK_ENABLED := $(strip $(LOCAL_JACK_ENABLED))
+ifneq ($(LOCAL_JACK_ENABLED),full)
+ifneq ($(LOCAL_JACK_ENABLED),incremental)
+LOCAL_JACK_ENABLED :=
+endif
+endif
diff --git a/core/host_dalvik_static_java_library.mk b/core/host_dalvik_static_java_library.mk
index bdce583..410b251 100644
--- a/core/host_dalvik_static_java_library.mk
+++ b/core/host_dalvik_static_java_library.mk
@@ -21,6 +21,8 @@
 #
 ifeq ($(HOST_OS),linux)
 
+LOCAL_UNINSTALLABLE_MODULE := true
+LOCAL_IS_STATIC_JAVA_LIBRARY := true
 USE_CORE_LIB_BOOTCLASSPATH := true
 LOCAL_JAVA_LIBRARIES += core-libart-hostdex
 
@@ -51,5 +53,5 @@
 	$(java-to-jack)
 
 USE_CORE_LIB_BOOTCLASSPATH :=
-
+LOCAL_IS_STATIC_JAVA_LIBRARY :=
 endif
diff --git a/core/host_java_library.mk b/core/host_java_library.mk
index b751c5f..513d185 100644
--- a/core/host_java_library.mk
+++ b/core/host_java_library.mk
@@ -58,13 +58,13 @@
 $(full_classes_emma_jar) : $(full_classes_compiled_jar) | $(EMMA_JAR)
 	$(transform-classes.jar-to-emma)
 
-$(LOCAL_BUILT_MODULE) : $(full_classes_emma_jar)
+$(built_javalib_jar) : $(full_classes_emma_jar)
 	@echo Copying: $@
 	$(hide) $(ACP) -fp $< $@
 
 else # LOCAL_EMMA_INSTRUMENT
-# Directly build into LOCAL_BUILT_MODULE.
-full_classes_compiled_jar := $(LOCAL_BUILT_MODULE)
+# Directly build into $(built_javalib_jar).
+full_classes_compiled_jar := $(built_javalib_jar)
 endif # LOCAL_EMMA_INSTRUMENT
 
 $(full_classes_compiled_jar): PRIVATE_JAVAC_DEBUG_FLAGS := -g
diff --git a/core/host_java_library_common.mk b/core/host_java_library_common.mk
index cd9e679..d077634 100644
--- a/core/host_java_library_common.mk
+++ b/core/host_java_library_common.mk
@@ -23,6 +23,22 @@
 LOCAL_IS_HOST_MODULE := true
 LOCAL_BUILT_MODULE_STEM := javalib.jar
 
+intermediates := $(call local-intermediates-dir)
+intermediates.COMMON := $(call local-intermediates-dir,COMMON)
+
+built_javalib_jar := $(intermediates)/javalib.jar
+
+#################################
+include $(BUILD_SYSTEM)/configure_local_jack.mk
+#################################
+
+ifdef LOCAL_JACK_ENABLED
+ifdef LOCAL_IS_STATIC_JAVA_LIBRARY
+LOCAL_BUILT_MODULE_STEM := classes.jack
+LOCAL_INTERMEDIATE_TARGETS += $(built_javalib_jar)
+endif
+endif
+
 # base_rules.mk looks at this
 all_res_assets :=
 
@@ -39,9 +55,6 @@
 endif
 endif
 
-intermediates := $(call local-intermediates-dir)
-intermediates.COMMON := $(call local-intermediates-dir,COMMON)
-
 LOCAL_INTERMEDIATE_SOURCE_DIR := $(intermediates.COMMON)/src
 LOCAL_JAVA_LIBRARIES := $(sort $(LOCAL_JAVA_LIBRARIES))
 
diff --git a/core/java.mk b/core/java.mk
index f5b5c45..6eb2247 100644
--- a/core/java.mk
+++ b/core/java.mk
@@ -538,17 +538,14 @@
 endif
 
 findbugs_xml := $(intermediates.COMMON)/findbugs.xml
-$(findbugs_xml) : PRIVATE_JAR_FILE := $(full_classes_jar)
 $(findbugs_xml) : PRIVATE_AUXCLASSPATH := $(addprefix -auxclasspath ,$(strip \
 								$(call normalize-path-list,$(filter %.jar,\
 										$(full_java_libs)))))
-# We can't depend directly on full_classes_jar because the PRIVATE_
-# vars won't be set up correctly.
-$(findbugs_xml) : $(LOCAL_BUILT_MODULE)
+$(findbugs_xml) : $(full_classes_jar)
 	@echo Findbugs: $@
 	$(hide) $(FINDBUGS) -textui -effort:min -xml:withMessages \
 		$(PRIVATE_AUXCLASSPATH) \
-		$(PRIVATE_JAR_FILE) \
+		$< \
 		> $@
 
 ALL_FINDBUGS_FILES += $(findbugs_xml)
diff --git a/core/java_library.mk b/core/java_library.mk
index 5ba8267..5a2d19b 100644
--- a/core/java_library.mk
+++ b/core/java_library.mk
@@ -24,10 +24,20 @@
 
 LOCAL_BUILT_MODULE_STEM := javalib.jar
 
+#################################
+include $(BUILD_SYSTEM)/configure_local_jack.mk
+#################################
+
+ifdef LOCAL_JACK_ENABLED
+ifdef LOCAL_IS_STATIC_JAVA_LIBRARY
+LOCAL_BUILT_MODULE_STEM := classes.jack
+endif
+endif
+
 intermediates.COMMON := $(call local-intermediates-dir,COMMON)
 
 # This file will be the one that other modules should depend on.
-common_javalib.jar := $(intermediates.COMMON)/$(LOCAL_BUILT_MODULE_STEM)
+common_javalib.jar := $(intermediates.COMMON)/javalib.jar
 LOCAL_INTERMEDIATE_TARGETS += $(common_javalib.jar)
 
 ifeq ($(LOCAL_PROGUARD_ENABLED),disabled)
@@ -59,7 +69,11 @@
 	@echo "target Static Jar: $(PRIVATE_MODULE) ($@)"
 	$(copy-file-to-target)
 
-$(LOCAL_BUILT_MODULE): $(common_javalib.jar)
+ifdef LOCAL_JACK_ENABLED
+$(LOCAL_BUILT_MODULE) : $(full_classes_jack)
+else
+$(LOCAL_BUILT_MODULE) : $(common_javalib.jar)
+endif
 	$(copy-file-to-target)
 
 else # !LOCAL_IS_STATIC_JAVA_LIBRARY
diff --git a/core/notice_files.mk b/core/notice_files.mk
index e63cd84..43a5435 100644
--- a/core/notice_files.mk
+++ b/core/notice_files.mk
@@ -43,7 +43,7 @@
       # javalib.jar is the default name for the build module (and isn't meaningful)
       # If that's what we have, substitute the module name instead.  These files
       # aren't included on the device, so this name is synthetic anyway.
-      ifeq ($(module_leaf),javalib.jar)
+      ifneq ($(filter javalib.jar classes.jack,$(module_leaf)),)
         module_leaf := $(LOCAL_MODULE).jar
       endif
       module_installed_filename := \
diff --git a/core/package_internal.mk b/core/package_internal.mk
index 3c488f6..40669a0 100644
--- a/core/package_internal.mk
+++ b/core/package_internal.mk
@@ -57,12 +57,9 @@
 endif
 LOCAL_MODULE_CLASS := APPS
 
-LOCAL_JACK_ENABLED := $(strip $(LOCAL_JACK_ENABLED))
-ifneq ($(LOCAL_JACK_ENABLED),full)
-ifneq ($(LOCAL_JACK_ENABLED),incremental)
-LOCAL_JACK_ENABLED :=
-endif
-endif
+#################################
+include $(BUILD_SYSTEM)/configure_local_jack.mk
+#################################
 
 # Package LOCAL_MODULE_TAGS default to optional
 LOCAL_MODULE_TAGS := $(strip $(LOCAL_MODULE_TAGS))
diff --git a/core/static_java_library.mk b/core/static_java_library.mk
index c5d1b46..9b7b46a 100644
--- a/core/static_java_library.mk
+++ b/core/static_java_library.mk
@@ -59,6 +59,10 @@
 
 LOCAL_PROGUARD_FLAGS := $(addprefix -include ,$(proguard_options_file)) $(LOCAL_PROGUARD_FLAGS)
 
+#################################
+include $(BUILD_SYSTEM)/configure_local_jack.mk
+#################################
+
 ifdef LOCAL_JACK_ENABLED
 ifndef LOCAL_JACK_PROGUARD_FLAGS
     LOCAL_JACK_PROGUARD_FLAGS := $(LOCAL_PROGUARD_FLAGS)