SUGGESTED FIX

--- old/make/linux/makefiles/buildtree.make	Thu Jul  3 09:40:02 2008
+++ new/make/linux/makefiles/buildtree.make	Thu Jul  3 09:40:02 2008
@@ -328,7 +328,7 @@
 WRONG_DATA_MODE_MSG = \
 	echo "JAVA_HOME must point to $(DATA_MODE)bit JDK."
 
-test_gamma:  $(BUILDTREE_MAKE)
+test_gamma:  $(BUILDTREE_MAKE) $(GAMMADIR)/make/test/Queens.java
 	@echo Creating $@ ...
 	$(QUIETLY) ( \
 	echo '#!/bin/sh'; \
@@ -339,7 +339,8 @@
 	echo "then"; \
 	echo "  $(WRONG_DATA_MODE_MSG); exit 0;"; \
 	echo "fi"; \
-	echo 'CLASSPATH="$(GAMMADIR)/make/$(OS_FAMILY):$$CLASSPATH"'; \
+	echo "rm -f Queens.class"; \
+	echo "\$${JAVA_HOME}/bin/javac -d . $(GAMMADIR)/make/test/Queens.java"; \
 	echo '[ -f gamma_g ] && { gamma=gamma_g; }'; \
 	echo './$${gamma:-gamma} $(TESTFLAGS) Queens < /dev/null'; \
 	) > $@
--- old/make/solaris/makefiles/buildtree.make	Thu Jul  3 09:40:03 2008
+++ new/make/solaris/makefiles/buildtree.make	Thu Jul  3 09:40:03 2008
@@ -340,7 +340,7 @@
 WRONG_DATA_MODE_MSG = \
 	echo "JAVA_HOME must point to $(DATA_MODE)bit JDK."
 
-test_gamma:  $(BUILDTREE_MAKE)
+test_gamma:  $(BUILDTREE_MAKE) $(GAMMADIR)/make/test/Queens.java
 	@echo Creating $@ ...
 	$(QUIETLY) ( \
 	echo '#!/bin/ksh'; \
@@ -351,7 +351,8 @@
 	echo "then"; \
 	echo "  $(WRONG_DATA_MODE_MSG); exit 0;"; \
 	echo "fi"; \
-	echo 'CLASSPATH="$(GAMMADIR)/make/$(OS_FAMILY):$$CLASSPATH"'; \
+	echo "rm -f Queens.class"; \
+	echo "\$${JAVA_HOME}/bin/javac -d . $(GAMMADIR)/make/test/Queens.java"; \
 	echo '[ -f gamma_g ] && { gamma=gamma_g; }'; \
 	echo './$${gamma:-gamma} $(TESTFLAGS) Queens < /dev/null'; \
 	) > $@
Binary files old/make/linux/Queens.class and /tmp/dHWay_g differ
Binary files old/make/solaris/Queens.class and /tmp/dg6ayfh differ
                                     

EVALUATION

Removing Queens.class files (2 of them) and creating the file on the fly with javac.
                                     

EVALUATION

http://hg.openjdk.java.net/jdk7/hotspot-svc/hotspot/rev/551f4309f476