--- a/jdk/make/java/instrument/Makefile	Wed Dec 28 10:51:24 2011 -0800
+++ b/jdk/make/java/instrument/Makefile	Thu Dec 29 16:39:51 2011 -0800
@@ -38,6 +38,9 @@
 
 FILES_m = mapfile-vers
 
+JAVAC_MAX_WARNINGS = true
+JAVAC_WARNINGS_FATAL = true
+
 include $(BUILDDIR)/common/Defs.gmk
 
 # Use the mapfile-vers (See the mapfile located with this Makefile)