--- a/langtools/src/share/classes/com/sun/tools/javac/code/Source.java	Thu Jun 17 16:28:21 2010 -0700
+++ b/langtools/src/share/classes/com/sun/tools/javac/code/Source.java	Fri Jun 18 15:12:04 2010 -0700
@@ -171,6 +171,10 @@
     public boolean allowStringsInSwitch() {
         return compareTo(JDK1_7) >= 0;
     }
+    // JSR 292: recognize @PolymorphicSignature on java/dyn names
+    public boolean allowPolymorphicSignature() {
+        return compareTo(JDK1_7) >= 0;
+    }
     public static SourceVersion toSourceVersion(Source source) {
         switch(source) {
         case JDK1_2: