auto import from //depot/cupcake/@135843
diff --git a/core/java.mk b/core/java.mk
new file mode 100644
index 0000000..65c525d
--- /dev/null
+++ b/core/java.mk
@@ -0,0 +1,178 @@
+# Requires:
+# LOCAL_MODULE_SUFFIX
+# LOCAL_MODULE_CLASS
+# all_res_assets
+
+# Make sure there's something to build.
+# It's possible to build a package that doesn't contain any classes.
+ifeq (,$(strip $(LOCAL_SRC_FILES)$(all_res_assets)))
+$(error $(LOCAL_PATH): Target java module does not define any source or resource files)
+endif
+
+LOCAL_NO_STANDARD_LIBRARIES:=$(strip $(LOCAL_NO_STANDARD_LIBRARIES))
+LOCAL_SDK_VERSION:=$(strip $(LOCAL_SDK_VERSION))
+
+ifneq ($(LOCAL_SDK_VERSION),)
+ ifeq ($(LOCAL_NO_STANDARD_LIBRARIES),true)
+ $(error $(LOCAL_PATH): Must not define both LOCAL_NO_STANDARD_LIBRARIES and LOCAL_SDK_VERSION)
+ else
+ ifeq ($(strip $(filter $(LOCAL_SDK_VERSION),$(TARGET_AVAILABLE_SDK_VERSIONS))),)
+ $(error $(LOCAL_PATH): Invalid LOCAL_SDK_VERSION '$(LOCAL_SDK_VERSION)' \
+ Choices are: $(TARGET_AVAILABLE_SDK_VERSIONS))
+ else
+ LOCAL_JAVA_LIBRARIES := android_stubs_$(LOCAL_SDK_VERSION) $(LOCAL_JAVA_LIBRARIES)
+ endif
+ endif
+else
+ ifneq ($(LOCAL_NO_STANDARD_LIBRARIES),true)
+ LOCAL_JAVA_LIBRARIES := core ext framework $(LOCAL_JAVA_LIBRARIES)
+ endif
+endif
+
+LOCAL_BUILT_MODULE_STEM := $(strip $(LOCAL_BUILT_MODULE_STEM))
+ifeq ($(LOCAL_BUILT_MODULE_STEM),)
+$(error $(LOCAL_PATH): Target java template must define LOCAL_BUILT_MODULE_STEM)
+endif
+ifneq ($(filter classes-compiled.jar classes.jar,$(LOCAL_BUILT_MODULE_STEM)),)
+$(error LOCAL_BUILT_MODULE_STEM may not be "$(LOCAL_BUILT_MODULE_STEM)")
+endif
+
+#######################################
+include $(BUILD_SYSTEM)/base_rules.mk
+#######################################
+
+# We use intermediates.COMMON because the classes.jar/.dex files will be
+# common even if LOCAL_BUILT_MODULE isn't.
+#
+# Override some target variables that base_rules set up for us.
+$(LOCAL_INTERMEDIATE_TARGETS): \
+ PRIVATE_CLASS_INTERMEDIATES_DIR := $(intermediates.COMMON)/classes
+$(LOCAL_INTERMEDIATE_TARGETS): \
+ PRIVATE_SOURCE_INTERMEDIATES_DIR := $(intermediates.COMMON)/src
+
+# Since we're using intermediates.COMMON, make sure that it gets cleaned
+# properly.
+$(cleantarget): PRIVATE_CLEAN_FILES += $(intermediates.COMMON)
+
+# If the module includes java code (i.e., it's not framework-res), compile it.
+full_classes_jar :=
+built_dex :=
+ifneq (,$(strip $(all_java_sources)))
+
+# If LOCAL_BUILT_MODULE_STEM wasn't overridden by our caller,
+# full_classes_jar will be the same module as LOCAL_BUILT_MODULE.
+# Otherwise, the caller will define it as a prerequisite of
+# LOCAL_BUILT_MODULE, so it will inherit the necessary PRIVATE_*
+# variable definitions.
+full_classes_jar := $(intermediates.COMMON)/classes.jar
+
+# Emma source code coverage
+ifneq ($(EMMA_INSTRUMENT),true)
+LOCAL_NO_EMMA_INSTRUMENT := true
+LOCAL_NO_EMMA_COMPILE := true
+endif
+
+ifneq ($(LOCAL_NO_EMMA_COMPILE),true)
+# If you instrument class files that have local variable debug information in
+# them emma does not correctly maintain the local variable table.
+# This will cause an error when you try to convert the class files for Android.
+# The workaround for this to compile the java classes with only
+# line and source debug information, not local information.
+full_classes_compiled_name_jar := classes-no-debug-var.jar
+$(full_classes_compiled_jar): PRIVATE_JAVAC_DEBUG_FLAGS := -g:{lines,source}
+else
+# when emma is off, compile with the default flags, which contain full debug
+# info
+full_classes_compiled_name_jar := classes-full-debug.jar
+$(full_classes_compiled_jar): PRIVATE_JAVAC_DEBUG_FLAGS := -g
+endif
+
+# Compile the java files to a .jar file.
+# This intentionally depends on java_sources, not all_java_sources.
+# Deps for generated source files must be handled separately,
+# via deps on the target that generates the sources.
+full_classes_compiled_jar := $(intermediates.COMMON)/$(full_classes_compiled_name_jar)
+$(full_classes_compiled_jar): $(java_sources) $(full_java_lib_deps)
+ $(transform-java-to-classes.jar)
+
+emma_intermediates_dir := $(intermediates.COMMON)/emma_out
+# the 'lib/$(full_classes_compiled_name_jar)' portion of this path is fixed in
+# the emma tool
+full_classes_emma_jar := $(emma_intermediates_dir)/lib/$(full_classes_compiled_name_jar)
+
+ifeq ($(LOCAL_IS_STATIC_JAVA_LIBRARY),true)
+# Skip adding emma instrumentation to class files if this is a static library,
+# since it will be instrumented by the package that includes it
+LOCAL_NO_EMMA_INSTRUMENT:= true
+endif
+
+ifneq ($(LOCAL_NO_EMMA_INSTRUMENT),true)
+$(full_classes_emma_jar): PRIVATE_EMMA_COVERAGE_FILE := $(intermediates.COMMON)/coverage.em
+$(full_classes_emma_jar): PRIVATE_EMMA_INTERMEDIATES_DIR := $(emma_intermediates_dir)
+# this rule will generate both $(PRIVATE_EMMA_COVERAGE_FILE) and
+# $(full_classes_emma_jar)
+$(full_classes_emma_jar): $(full_classes_compiled_jar)
+ $(transform-classes.jar-to-emma)
+$(PRIVATE_EMMA_COVERAGE_FILE): $(full_classes_emma_jar)
+else
+$(full_classes_emma_jar): $(full_classes_compiled_jar) | $(ACP)
+ @echo Copying $<
+ $(copy-file-to-target)
+endif
+
+# Run jarjar if necessary, otherwise just copy the file. This is the last
+# part of this step, so the output of this command is full_classes_jar.
+full_classes_jarjar_jar := $(full_classes_jar)
+ifneq ($(strip $(LOCAL_JARJAR_RULES)),)
+$(full_classes_jarjar_jar): PRIVATE_JARJAR_RULES := $(LOCAL_JARJAR_RULES)
+$(full_classes_jarjar_jar): $(full_classes_emma_jar) | jarjar
+ @echo JarJar: $@
+ $(hide) $(JARJAR) process $(PRIVATE_JARJAR_RULES) $< $@
+else
+$(full_classes_jarjar_jar): $(full_classes_emma_jar) | $(ACP)
+ @echo Copying: $@
+ $(hide) $(ACP) $< $@
+endif
+
+
+built_dex := $(intermediates.COMMON)/classes.dex
+
+# Override PRIVATE_INTERMEDIATES_DIR so that install-dex-debug
+# will work even when intermediates != intermediates.COMMON.
+$(built_dex): PRIVATE_INTERMEDIATES_DIR := $(intermediates.COMMON)
+$(built_dex): PRIVATE_DX_FLAGS := $(LOCAL_DX_FLAGS)
+$(built_dex): $(full_classes_jar) $(DX)
+ $(transform-classes.jar-to-dex)
+ifneq ($(GENERATE_DEX_DEBUG),)
+ $(install-dex-debug)
+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)
+ @echo Findbugs: $@
+ $(hide) $(FINDBUGS) -textui -effort:min -xml:withMessages \
+ $(PRIVATE_AUXCLASSPATH) \
+ $(PRIVATE_JAR_FILE) \
+ > $@
+
+ALL_FINDBUGS_FILES += $(findbugs_xml)
+
+findbugs_html := $(PRODUCT_OUT)/findbugs/$(LOCAL_MODULE).html
+$(findbugs_html) : PRIVATE_XML_FILE := $(findbugs_xml)
+$(LOCAL_MODULE)-findbugs : $(findbugs_html)
+$(findbugs_html) : $(findbugs_xml)
+ @mkdir -p $(dir $@)
+ @echo UnionBugs: $@
+ $(hide) prebuilt/common/findbugs/bin/unionBugs $(PRIVATE_XML_FILE) \
+ | prebuilt/common/findbugs/bin/convertXmlToText -html:fancy.xsl \
+ > $@
+
+$(LOCAL_MODULE)-findbugs : $(findbugs_html)
+
+endif