lowrampatch.patch

diff --git a/core/definitions.mk b/core/definitions.mk
index b6869011a..441ff1005 100644
--- a/core/definitions.mk
+++ b/core/definitions.mk
@@ -2188,7 +2188,7 @@ endef
 # Call jack
 #
 define call-jack
- JACK_VERSION=$(PRIVATE_JACK_VERSION) $(JACK) $(DEFAULT_JACK_EXTRA_ARGS)
+ JACK_VERSION=$(PRIVATE_JACK_VERSION) flock $(BUILD_DROIDDOC) $(JACK) $(DEFAULT_JACK_EXTRA_ARGS)
 endef
 
 # Common definition to invoke javac on the host and target.
@@ -2329,6 +2329,7 @@ $(call call-jack) \
     $(if $(PRIVATE_JACK_PROGUARD_FLAGS),--config-proguard $@.flags) \
     $$tmpEcjArg \
     || ( rm -rf $(PRIVATE_CLASSES_JACK); exit 41 )
+$(hide) $(JACK)-admin server-gc
 $(hide) mv $(PRIVATE_JACK_INTERMEDIATES_DIR)/classes*.dex $(dir $@)
 $(hide) rm -f $(PRIVATE_JACK_INTERMEDIATES_DIR)/java-source-list
 $(if $(PRIVATE_EXTRA_JAR_ARGS),$(hide) rm -rf $@.res.tmp)
@@ -2372,6 +2373,7 @@ $(hide) if [ -s $@.java-source-list-uniq ] ; then \
 	    $(if $(PRIVATE_JACK_INCREMENTAL_DIR),--incremental-folder $(PRIVATE_JACK_INCREMENTAL_DIR)) \
 	    @$@.java-source-list-uniq; \
 fi
+$(hide) $(JACK)-admin server-gc
 touch $@
 endef
 
@@ -2391,6 +2393,7 @@ define transform-jar-to-jack
 	    --import $< \
 	    --import-resource $@.tmpjill.res \
 	    --output-jack $@
+	$(hide) $(JACK)-admin server-gc
 	$(hide) rm -rf $@.tmpjill.res
 endef
 
@@ -2509,6 +2512,7 @@ $(call call-jack) \
     $(if $(PRIVATE_JACK_PROGUARD_FLAGS),--config-proguard $@.flags) \
     $$tmpEcjArg \
     || ( rm -f $@ ; exit 41 )
+$(hide) $(JACK)-admin server-gc
 $(hide) rm -f $(PRIVATE_JACK_INTERMEDIATES_DIR)/java-source-list
 $(if $(PRIVATE_EXTRA_JAR_ARGS),$(hide) rm -rf $@.res.tmp)
 $(hide) mv $(PRIVATE_JACK_INTERMEDIATES_DIR)/java-source-list-uniq $(PRIVATE_JACK_INTERMEDIATES_DIR).java-source-list
diff --git a/core/droiddoc.mk b/core/droiddoc.mk
index 2285b2cba..cc1be399e 100644
--- a/core/droiddoc.mk
+++ b/core/droiddoc.mk
@@ -173,6 +173,7 @@ $(full_target): \
 	$(call prepare-doc-source-list,$(PRIVATE_SRC_LIST_FILE),$(PRIVATE_JAVA_FILES), \
 			$(PRIVATE_SOURCE_INTERMEDIATES_DIR) $(PRIVATE_ADDITIONAL_JAVA_DIR))
 	$(hide) ( \
+		flock $(BUILD_DROIDDOC) \
 		javadoc \
                 -encoding UTF-8 \
                 \@$(PRIVATE_SRC_LIST_FILE) \
@@ -210,6 +211,7 @@ $(full_target): $(full_src_files) $(full_java_lib_deps)
 	$(call prepare-doc-source-list,$(PRIVATE_SRC_LIST_FILE),$(PRIVATE_JAVA_FILES), \
 			$(PRIVATE_SOURCE_INTERMEDIATES_DIR) $(PRIVATE_ADDITIONAL_JAVA_DIR))
 	$(hide) ( \
+		flock $(BUILD_DROIDDOC) \
 		javadoc \
                 -encoding UTF-8 \
                 $(PRIVATE_DROIDDOC_OPTIONS) \