--- a/nashorn/make/project.properties	Tue Sep 01 18:19:29 2015 +0200
+++ b/nashorn/make/project.properties	Tue Sep 01 23:08:33 2015 +0530
@@ -302,7 +302,7 @@
   -XX:+HeapDumpOnOutOfMemoryError
 
 # turn on assertions for tests
-run.test.jvmargs.main=${run.test.jvmargs.common} -esa -ea
+run.test.jvmargs.main=${run.test.jvmargs.common} -esa -ea -da:java.lang.invoke.LambdaFormEditor
 
 # Extra jvmargs that might be useful for debugging
 # and performance improvements/monitoring