diff -r d17f37522154 -r 7c537f4298fb src/share/classes/com/sun/tools/javac/comp/Check.java
--- a/src/share/classes/com/sun/tools/javac/comp/Check.java	Mon Jan 10 14:57:59 2011 -0800
+++ b/src/share/classes/com/sun/tools/javac/comp/Check.java	Mon Jan 10 15:08:31 2011 -0800
@@ -2397,7 +2397,7 @@
      */
     void checkNonCyclicElements(JCClassDecl tree) {
         if ((tree.sym.flags_field & ANNOTATION) == 0) return;
-        assert (tree.sym.flags_field & LOCKED) == 0;
+        Assert.check((tree.sym.flags_field & LOCKED) == 0);
         try {
             tree.sym.flags_field |= LOCKED;
             for (JCTree def : tree.defs) {