--- a/langtools/src/share/classes/com/sun/tools/javac/comp/Attr.java	Thu Nov 24 13:38:40 2011 +0000
+++ b/langtools/src/share/classes/com/sun/tools/javac/comp/Attr.java	Mon Nov 28 15:56:42 2011 +0000
@@ -1975,6 +1975,11 @@
         result = check(tree, owntype, VAL, pkind, pt);
     }
 
+    @Override
+    public void visitLambda(JCLambda that) {
+        throw new UnsupportedOperationException("Lambda expression not supported yet");
+    }
+
     public void visitParens(JCParens tree) {
         Type owntype = attribTree(tree.expr, env, pkind, pt);
         result = check(tree, owntype, pkind, pkind, pt);