Make: Don't rely on presence of tools.jar in toolchain.
Some cts, doclava and javassist code uses private APIs that require
tools.jar to be on the classpath when building with the standard
OpenJDK 8 toolchain. However, OpenJDK 9 toolchains do not have this
file nor require it to be on the classpath. The reliance on the
presence of tools.jar means that AOSP can currently not build on
such toolchains.
After this CL, when EXPERIMENTAL_USE_OPENJDK9 is set, the value of
HOST_JDK_TOOLS_JAR is empty.
That flag can be set via:
export EXPERIMENTAL_USE_OPENJDK9=true
and unset via:
unset EXPERIMENTAL_USE_OPENJDK9
Test: make checkbuild (using OpenJDK 8 toolchain)
Test: manually confirmed that device boots
Bug: 38177295
Change-Id: Icc5451b51e44a574fd21024d434ed1fa8711de17
diff --git a/core/config.mk b/core/config.mk
index badb9b1..c5801a1 100644
--- a/core/config.mk
+++ b/core/config.mk
@@ -662,13 +662,21 @@
# We may not have the right JAVA_HOME/PATH set up yet when this is run from envsetup.sh.
ifneq ($(CALLED_FROM_SETUP),true)
-HOST_JDK_TOOLS_JAR:= $(shell $(BUILD_SYSTEM)/find-jdk-tools-jar.sh)
+
+# Path to tools.jar, or empty if EXPERIMENTAL_USE_OPENJDK9 is set
+HOST_JDK_TOOLS_JAR :=
+# TODO: Remove HOST_JDK_TOOLS_JAR and all references to it once OpenJDK 8
+# toolchains are no longer supported (i.e. when what is now
+# EXPERIMENTAL_USE_OPENJDK9 becomes the standard). http://b/38418220
+ifeq ($(EXPERIMENTAL_USE_OPENJDK9),)
+HOST_JDK_TOOLS_JAR := $(shell $(BUILD_SYSTEM)/find-jdk-tools-jar.sh)
ifneq ($(HOST_JDK_TOOLS_JAR),)
ifeq ($(wildcard $(HOST_JDK_TOOLS_JAR)),)
$(error Error: could not find jdk tools.jar at $(HOST_JDK_TOOLS_JAR), please check if your JDK was installed correctly)
endif
endif
+endif # ifeq ($(EXPERIMENTAL_USE_OPENJDK9),)
# Is the host JDK 64-bit version?
HOST_JDK_IS_64BIT_VERSION :=
@@ -684,9 +692,13 @@
MD5SUM:=md5sum
endif
-APICHECK_CLASSPATH := $(HOST_JDK_TOOLS_JAR)
-APICHECK_CLASSPATH := $(APICHECK_CLASSPATH):$(HOST_OUT_JAVA_LIBRARIES)/doclava$(COMMON_JAVA_PACKAGE_SUFFIX)
-APICHECK_CLASSPATH := $(APICHECK_CLASSPATH):$(HOST_OUT_JAVA_LIBRARIES)/jsilver$(COMMON_JAVA_PACKAGE_SUFFIX)
+APICHECK_CLASSPATH_ENTRIES := \
+ $(HOST_OUT_JAVA_LIBRARIES)/doclava$(COMMON_JAVA_PACKAGE_SUFFIX) \
+ $(HOST_OUT_JAVA_LIBRARIES)/jsilver$(COMMON_JAVA_PACKAGE_SUFFIX) \
+ $(HOST_JDK_TOOLS_JAR) \
+ )
+APICHECK_CLASSPATH := $(subst $(space),:,$(strip $(APICHECK_CLASSPATH_ENTRIES)))
+
APICHECK_COMMAND := $(APICHECK) -JXmx1024m -J"classpath $(APICHECK_CLASSPATH)"
# The default key if not set as LOCAL_CERTIFICATE
