--- a/langtools/src/share/classes/com/sun/tools/javac/parser/JavacParser.java	Wed Mar 02 21:06:17 2011 -0800
+++ b/langtools/src/share/classes/com/sun/tools/javac/parser/JavacParser.java	Wed Mar 02 21:13:55 2011 -0800
@@ -2357,7 +2357,7 @@
 
         List<JCTypeParameter> typarams = typeParametersOpt();
 
-        JCTree extending = null;
+        JCExpression extending = null;
         if (S.token() == EXTENDS) {
             S.nextToken();
             extending = parseType();