--- a/langtools/src/share/classes/com/sun/tools/javac/comp/MemberEnter.java	Fri Feb 04 17:30:28 2011 -0800
+++ b/langtools/src/share/classes/com/sun/tools/javac/comp/MemberEnter.java	Mon Feb 07 18:09:46 2011 +0000
@@ -787,10 +787,11 @@
                 && s.owner.kind != MTH
                 && types.isSameType(c.type, syms.deprecatedType))
                 s.flags_field |= Flags.DEPRECATED;
-            // Internally to java.dyn, a @PolymorphicSignature annotation
+            // Internally to java.lang.invoke, a @PolymorphicSignature annotation
             // acts like a classfile attribute.
             if (!c.type.isErroneous() &&
-                    types.isSameType(c.type, syms.polymorphicSignatureType)) {
+                    (types.isSameType(c.type, syms.polymorphicSignatureType) ||
+                     types.isSameType(c.type, syms.transientPolymorphicSignatureType))) {
                 if (!target.hasMethodHandles()) {
                     // Somebody is compiling JDK7 source code to a JDK6 target.
                     // Make it an error, since it is unlikely but important.