RFR (XXS): 8139935: Bootcycle builds are broken on jdk9/hs due to JVMCI changes

[Christian Thalinger]

https://bugs.openjdk.java.net/browse/JDK-8139935

The reason this “works” for a non-bootcycle build is because a JDK 9 javac won't enforce the “hidden packages” rules when running on a non-JDK 9 platform.

diff -r a8a8604f890f make/gensrc/Gensrc-jdk.vm.ci.gmk
--- a/make/gensrc/Gensrc-jdk.vm.ci.gmk	Sat Oct 17 19:40:30 2015 -0400
+++ b/make/gensrc/Gensrc-jdk.vm.ci.gmk	Tue Oct 20 09:57:02 2015 -1000
@@ -77,6 +77,7 @@ PROCESSOR_PATH := $(call PathList, \
 	$(MKDIR) -p $(@D)
 	$(eval $(call ListPathsSafely,PROC_SRCS,$(@D)/_gensrc_proc_files))
 	$(JAVA_SMALL) $(NEW_JAVAC) \
+	    -XDignore.symbol.file \
 	    -sourcepath $(SOURCEPATH) \
 	    -implicit:none \
 	    -proc:only \

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