diff --git a/core/Makefile b/core/Makefile
index 9aae8ca..8dbd5ed 100644
--- a/core/Makefile
+++ b/core/Makefile
@@ -1093,7 +1093,7 @@
 	@echo "DumpPublicKey: $@ <= $(PRIVATE_OTA_PUBLIC_KEYS) $(extra_keys)"
 	@rm -rf $@
 	@mkdir -p $(dir $@)
-	java -jar $(DUMPKEY_JAR) $(PRIVATE_OTA_PUBLIC_KEYS) $(extra_keys) > $@
+	$(JAVA) -jar $(DUMPKEY_JAR) $(PRIVATE_OTA_PUBLIC_KEYS) $(extra_keys) > $@
 
 RECOVERYIMAGE_ID_FILE := $(PRODUCT_OUT)/recovery.id
 
diff --git a/core/combo/javac.mk b/core/combo/javac.mk
index 7f66ea8..99bd0ee 100644
--- a/core/combo/javac.mk
+++ b/core/combo/javac.mk
@@ -23,6 +23,10 @@
 JAVACC := $(ALTERNATE_JAVAC)
 endif
 
+JAVA := java
+JAVADOC := javadoc
+JAR := jar
+
 # The actual compiler can be wrapped by setting the JAVAC_WRAPPER var.
 ifdef JAVAC_WRAPPER
     ifneq ($(JAVAC_WRAPPER),$(firstword $(JAVACC)))
diff --git a/core/config.mk b/core/config.mk
index 66511c1..6ca45c0 100644
--- a/core/config.mk
+++ b/core/config.mk
@@ -517,7 +517,7 @@
 DX_COMMAND := $(DX) -JXms16M -JXmx2048M
 else
 DX := $(DX_ALT_JAR)
-DX_COMMAND := java -Xms16M -Xmx2048M -jar $(DX)
+DX_COMMAND := $(JAVA) -Xms16M -Xmx2048M -jar $(DX)
 endif
 
 MAINDEXCLASSES := $(HOST_OUT_EXECUTABLES)/mainDexClasses
@@ -676,7 +676,7 @@
 EMMA_JAR := external/emma/lib/emma$(COMMON_JAVA_PACKAGE_SUFFIX)
 
 # Tool to merge AndroidManifest.xmls
-ANDROID_MANIFEST_MERGER := java -classpath prebuilts/devtools/tools/lib/manifest-merger.jar com.android.manifmerger.Main merge
+ANDROID_MANIFEST_MERGER := $(JAVA) -classpath prebuilts/devtools/tools/lib/manifest-merger.jar com.android.manifmerger.Main merge
 
 COLUMN:= column
 
@@ -700,7 +700,7 @@
 
 # Is the host JDK 64-bit version?
 HOST_JDK_IS_64BIT_VERSION :=
-ifneq ($(filter 64-Bit, $(shell java -version 2>&1)),)
+ifneq ($(filter 64-Bit, $(shell $(JAVA) -version 2>&1)),)
 HOST_JDK_IS_64BIT_VERSION := true
 endif
 endif  # CALLED_FROM_SETUP not true
diff --git a/core/definitions.mk b/core/definitions.mk
index 15ef6f4..fe8d644 100644
--- a/core/definitions.mk
+++ b/core/definitions.mk
@@ -2243,9 +2243,9 @@
 $(if $(PRIVATE_JAR_MANIFEST), \
     $(hide) sed -e "s/%BUILD_NUMBER%/$(BUILD_NUMBER_FROM_FILE)/" \
             $(PRIVATE_JAR_MANIFEST) > $(dir $@)/manifest.mf && \
-        jar -cfm $@ $(dir $@)/manifest.mf \
+        $(JAR) -cfm $@ $(dir $@)/manifest.mf \
             -C $(PRIVATE_CLASS_INTERMEDIATES_DIR) ., \
-    $(hide) jar -cf $@ -C $(PRIVATE_CLASS_INTERMEDIATES_DIR) .)
+    $(hide) $(JAR) -cf $@ -C $(PRIVATE_CLASS_INTERMEDIATES_DIR) .)
 $(if $(PRIVATE_EXTRA_JAR_ARGS),$(call add-java-resources-to,$@))
 endef
 
@@ -2516,7 +2516,7 @@
 endef
 
 define transform-classes.jar-to-emma
-$(hide) java -classpath $(EMMA_JAR) emma instr -outmode fullcopy -outfile \
+$(hide) $(JAVA) -classpath $(EMMA_JAR) emma instr -outmode fullcopy -outfile \
     $(PRIVATE_EMMA_COVERAGE_FILE) -ip $< -d $(PRIVATE_EMMA_INTERMEDIATES_DIR) \
     $(addprefix -ix , $(PRIVATE_EMMA_COVERAGE_FILTER))
 endef
@@ -2539,7 +2539,7 @@
 $(hide) rm -f $@ $@.tmp
 @rm -rf $(dir $@)/desugar_dumped_classes
 @mkdir $(dir $@)/desugar_dumped_classes
-$(hide) java \
+$(hide) $(JAVA) \
     $(if $(EXPERIMENTAL_USE_OPENJDK9),--add-opens java.base/java.lang.invoke=ALL-UNNAMED,) \
     -Djdk.internal.lambda.dumpProxyClasses=$(abspath $(dir $@))/desugar_dumped_classes \
     -jar $(DESUGAR) \
@@ -2577,7 +2577,7 @@
 define create-empty-package-at
 @mkdir -p $(dir $(1))
 $(hide) touch $(dir $(1))zipdummy
-$(hide) (cd $(dir $(1)) && jar cf $(notdir $(1)) zipdummy)
+$(hide) $(JAR) cf $(1) -C $(dir $(1)) zipdummy
 $(hide) zip -qd $(1) zipdummy
 $(hide) rm $(dir $(1))zipdummy
 endef
@@ -2671,7 +2671,7 @@
 #
 define add-java-resources-to
 $(call dump-words-to-file, $(PRIVATE_EXTRA_JAR_ARGS), $(1).jar-arg-list)
-$(hide) jar uf $(1) @$(1).jar-arg-list
+$(hide) $(JAR) uf $(1) @$(1).jar-arg-list
 @rm -f $(1).jar-arg-list
 endef
 
@@ -2683,7 +2683,7 @@
         | sed -e "s?^$(PRIVATE_JACK_INTERMEDIATES_DIR)/? -C \"$(PRIVATE_JACK_INTERMEDIATES_DIR)\" \"?" -e "s/$$/\"/" \
         > $(dir $@)jack_res_jar_flags; \
     if [ -s $(dir $@)jack_res_jar_flags ] ; then \
-        jar uf $@ @$(dir $@)jack_res_jar_flags; \
+        $(JAR) uf $@ @$(dir $@)jack_res_jar_flags; \
     fi; \
 fi
 endef
@@ -2698,7 +2698,7 @@
 # $(1): the package file we are signing.
 define sign-package-arg
 $(hide) mv $(1) $(1).unsigned
-$(hide) java -Djava.library.path=$(SIGNAPK_JNI_LIBRARY_PATH) \
+$(hide) $(JAVA) -Djava.library.path=$(SIGNAPK_JNI_LIBRARY_PATH) \
     $(if $(EXPERIMENTAL_USE_OPENJDK9),--add-exports java.base/sun.security.pkcs=ALL-UNNAMED,) \
     $(if $(EXPERIMENTAL_USE_OPENJDK9),--add-exports java.base/sun.security.x509=ALL-UNNAMED,) \
     -jar $(SIGNAPK_JAR) \
diff --git a/core/droiddoc.mk b/core/droiddoc.mk
index eb12630..48a930d 100644
--- a/core/droiddoc.mk
+++ b/core/droiddoc.mk
@@ -179,7 +179,7 @@
 	$(call prepare-doc-source-list,$(PRIVATE_SRC_LIST_FILE),$(PRIVATE_JAVA_FILES), \
 			$(PRIVATE_SOURCE_INTERMEDIATES_DIR) $(PRIVATE_ADDITIONAL_JAVA_DIR))
 	$(hide) ( \
-		javadoc \
+		$(JAVADOC) \
                 -encoding UTF-8 \
                 -source 1.8 \
                 \@$(PRIVATE_SRC_LIST_FILE) \
@@ -216,7 +216,7 @@
 	$(call prepare-doc-source-list,$(PRIVATE_SRC_LIST_FILE),$(PRIVATE_JAVA_FILES), \
 			$(PRIVATE_SOURCE_INTERMEDIATES_DIR) $(PRIVATE_ADDITIONAL_JAVA_DIR))
 	$(hide) ( \
-		javadoc \
+		$(JAVADOC) \
                 -encoding UTF-8 \
                 $(PRIVATE_DROIDDOC_OPTIONS) \
                 \@$(PRIVATE_SRC_LIST_FILE) \
diff --git a/core/host_dalvik_java_library.mk b/core/host_dalvik_java_library.mk
index 7101229..4f3069f 100644
--- a/core/host_dalvik_java_library.mk
+++ b/core/host_dalvik_java_library.mk
@@ -119,7 +119,7 @@
 $(full_classes_jarjar_jar): PRIVATE_JARJAR_RULES := $(LOCAL_JARJAR_RULES)
 $(full_classes_jarjar_jar): $(full_classes_desugar_jar) $(LOCAL_JARJAR_RULES) | $(JARJAR)
 	@echo JarJar: $@
-	$(hide) java -jar $(JARJAR) process $(PRIVATE_JARJAR_RULES) $< $@
+	$(hide) $(JAVA) -jar $(JARJAR) process $(PRIVATE_JARJAR_RULES) $< $@
 else
 full_classes_jarjar_jar := $(full_classes_desugar_jar)
 endif
diff --git a/core/host_java_library.mk b/core/host_java_library.mk
index d30c90d..939ff37 100644
--- a/core/host_java_library.mk
+++ b/core/host_java_library.mk
@@ -90,7 +90,7 @@
 $(full_classes_jarjar_jar): PRIVATE_JARJAR_RULES := $(LOCAL_JARJAR_RULES)
 $(full_classes_jarjar_jar): $(full_classes_compiled_jar) $(LOCAL_JARJAR_RULES) | $(JARJAR)
 	@echo JarJar: $@
-	$(hide) java -jar $(JARJAR) process $(PRIVATE_JARJAR_RULES) $< $@
+	$(hide) $(JAVA) -jar $(JARJAR) process $(PRIVATE_JARJAR_RULES) $< $@
 else
 full_classes_jarjar_jar := $(full_classes_compiled_jar)
 endif
diff --git a/core/java.mk b/core/java.mk
index 8dc4b22..e456993 100644
--- a/core/java.mk
+++ b/core/java.mk
@@ -463,7 +463,7 @@
 $(full_classes_processed_jar): $(full_classes_compiled_jar) $(LOCAL_JAR_PROCESSOR)
 	@echo Processing $@ with $(PRIVATE_JAR_PROCESSOR)
 	$(hide) rm -f $@ $(PRIVATE_TMP_OUT)
-	$(hide) java -jar $(PRIVATE_JAR_PROCESSOR) $(PRIVATE_JAR_PROCESSOR_ARGS)
+	$(hide) $(JAVA) -jar $(PRIVATE_JAR_PROCESSOR) $(PRIVATE_JAR_PROCESSOR_ARGS)
 	$(hide) mv $(PRIVATE_TMP_OUT) $@
 
 else
@@ -489,7 +489,7 @@
 $(full_classes_jarjar_jar): PRIVATE_JARJAR_RULES := $(LOCAL_JARJAR_RULES)
 $(full_classes_jarjar_jar): $(full_classes_desugar_jar) $(LOCAL_JARJAR_RULES) | $(JARJAR)
 	@echo JarJar: $@
-	$(hide) java -jar $(JARJAR) process $(PRIVATE_JARJAR_RULES) $< $@
+	$(hide) $(JAVA) -jar $(JARJAR) process $(PRIVATE_JARJAR_RULES) $< $@
 else
 full_classes_jarjar_jar := $(full_classes_desugar_jar)
 endif
diff --git a/core/package_internal.mk b/core/package_internal.mk
index 6255ef1..8b3c375 100644
--- a/core/package_internal.mk
+++ b/core/package_internal.mk
@@ -355,7 +355,7 @@
 	@rm -rf $(PRIVATE_INTERMEDIATES) $(PRIVATE_SRC_OUT) && \
 	  mkdir -p $(PRIVATE_INTERMEDIATES) $(PRIVATE_SRC_OUT) \
 	      $(PRIVATE_XML_OUT) $(PRIVATE_RES_OUT) $(PRIVATE_ANNO_SRC_DIR)
-	$(hide) java -classpath $(DATA_BINDING_COMPILER) android.databinding.tool.MakeCopy \
+	$(hide) $(JAVA) -classpath $(DATA_BINDING_COMPILER) android.databinding.tool.MakeCopy \
 	  $(PRIVATE_MANIFEST) $(PRIVATE_SRC_OUT) $(PRIVATE_XML_OUT) $(PRIVATE_RES_OUT) $(PRIVATE_RES_IN)
 	$(hide) touch $@
 
diff --git a/core/static_java_library.mk b/core/static_java_library.mk
index 343b949..db64a8d 100644
--- a/core/static_java_library.mk
+++ b/core/static_java_library.mk
@@ -199,7 +199,7 @@
 	# Note: Use "cp -n" to honor the resource overlay rules, if multiple res dirs exist.
 	$(hide) $(foreach res,$(PRIVATE_RESOURCE_DIR),cp -Rfn $(res)/* $(dir $@)aar/res;)
 	$(hide) cp $(PRIVATE_R_TXT) $(dir $@)aar/R.txt
-	$(hide) jar -cMf $@ \
+	$(hide) $(JAR) -cMf $@ \
 	  -C $(dir $@)aar .
 
 # Register the aar file.
diff --git a/core/tasks/sdk-addon.mk b/core/tasks/sdk-addon.mk
index 362b229..610e0ce 100644
--- a/core/tasks/sdk-addon.mk
+++ b/core/tasks/sdk-addon.mk
@@ -35,7 +35,7 @@
 define stub-addon-jar
 $(call stub-addon-jar-file,$(1)): $(1) | mkstubs
 	$(info Stubbing addon jar using $(PRODUCT_SDK_ADDON_STUB_DEFS))
-	$(hide) java -jar $(call module-installed-files,mkstubs) $(if $(hide),,--v) \
+	$(hide) $(JAVA) -jar $(call module-installed-files,mkstubs) $(if $(hide),,--v) \
 		"$$<" "$$@" @$(PRODUCT_SDK_ADDON_STUB_DEFS)
 endef