JDK9: Build wb.jar which depends on JDK9 API

[Vladimir Ivanov]

Hi,

Quick question: I have to use Java9 API in sun.misc.WhiteBox, but right 
now it is built using BOOT_JDK. Does the following change [1] look good?

The following dependency seems too conservative (depends on hotspot 
which is not necessary):

   build-test-lib: $(JAVA_TARGETS)

but I haven't found how to enumerate only JDK modules:

Thanks!
Best regards,
Vladimir Ivanov

[1] diff --git a/make/Main.gmk b/make/Main.gmk
--- a/make/Main.gmk
+++ b/make/Main.gmk
@@ -452,6 +452,8 @@

    test-make: clean-test-make

+  build-test-lib: $(JAVA_TARGETS)
+
    build-test-hotspot-jtreg-native: buildtools-jdk

    build-test-jdk-jtreg-native: buildtools-jdk
diff --git a/make/test/BuildTestLib.gmk b/make/test/BuildTestLib.gmk
--- a/make/test/BuildTestLib.gmk
+++ b/make/test/BuildTestLib.gmk
@@ -35,14 +35,8 @@
  TEST_LIB_SOURCE_DIR := $(TOPDIR)/test/lib
  TEST_LIB_SUPPORT := $(SUPPORT_OUTPUTDIR)/test/lib

-# Unfortunately, test-lib.jar does not compile properly without warnings.
-$(eval $(call SetupJavaCompiler, BOOT_JAVAC_NOWARNINGS, \
-    JAVAC := $(JAVAC), \
-    FLAGS := -XDignore.symbol.file=true -g, \
-))
-
  $(eval $(call SetupJavaCompilation, BUILD_WB_JAR, \
-    SETUP := BOOT_JAVAC, \
+    SETUP := GENERATE_USINGJDKBYTECODE, \
      SRC := $(TEST_LIB_SOURCE_DIR)/sun, \
      BIN := $(TEST_LIB_SUPPORT), \
      JAR := $(TEST_LIB_SUPPORT)/wb.jar, \
@@ -52,7 +46,7 @@

  # test-lib.jar will contain only hprof classes until JDK-8081381 is 
resolved
  $(eval $(call SetupJavaCompilation, BUILD_TEST_LIB_JAR, \
-    SETUP := BOOT_JAVAC_NOWARNINGS, \
+    SETUP := GENERATE_USINGJDKBYTECODE, \
      SRC := $(TEST_LIB_SOURCE_DIR)/share/classes/jdk/test/lib/hprof, \
      BIN := $(TEST_LIB_SUPPORT), \
      JAR := $(TEST_LIB_SUPPORT)/test-lib.jar, \