javac 9 -target 1.9: Move bootclasspath jars onto classpath.
When building with OpenJDK 9's javac with -source 1.9 -target 1.9,
a runtime image (with system modules) is used via the --system
command line flag, instead of --bootclasspath.
The runtime image only contains the default libraries (libcore)
but is missing other libraries that might be on the bootclasspath
for a particular build target.
This CL fixes compilation for this case by adding the missing
jars onto the classpath instead.
This already used to work but was broken by CL [1]. I attempted
to conditionally revert some of that CL's changes to java_common.mk
for the case of language level 1.9, but couldn't get it to work.
Therefore this CL follows a different approach.
[1] http://r.android.com/519552
Bug: 38177569
Test: Treehugger
Test: Ran "EXPERIMENTAL_USE_OPENJDK9=true make checkbuild docs"
and spot-checked some javac invocations to confirm that the
system modules libs were not included in the bootclasspath,
but other libs were.
Change-Id: I48fd11aac9b310bfa58dee0f9cfb3ef33f10bca8
diff --git a/core/java_common.mk b/core/java_common.mk
index 436f3a3..ac8b0d2 100644
--- a/core/java_common.mk
+++ b/core/java_common.mk
@@ -358,7 +358,9 @@
$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_BOOTCLASSPATH := $(full_java_bootclasspath_libs)
$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_EMPTY_BOOTCLASSPATH := $(empty_bootclasspath)
-$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_SYSTEM_MODULES := $(my_system_modules_dir)
+$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_SYSTEM_MODULES := $(my_system_modules)
+$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_SYSTEM_MODULES_DIR := $(my_system_modules_dir)
+$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_SYSTEM_MODULES_LIBS := $(call java-lib-files,$(SOONG_SYSTEM_MODULES_LIBS_$(my_system_modules)))
$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_PATCH_MODULE := $(LOCAL_PATCH_MODULE)
ifndef LOCAL_IS_HOST_MODULE
