diff -r aa6605d883dc -r 91b4f44c9742 src/share/classes/com/sun/tools/javac/tree/TreeInfo.java
--- a/src/share/classes/com/sun/tools/javac/tree/TreeInfo.java	Fri Dec 03 16:32:31 2010 +0000
+++ b/src/share/classes/com/sun/tools/javac/tree/TreeInfo.java	Fri Dec 03 13:47:59 2010 -0800
@@ -502,7 +502,7 @@
                 else super.visitVarDef(that);
             }
             public void visitTypeParameter(JCTypeParameter that) {
-                if (that.type.tsym == sym) result = that;
+                if (that.type != null && that.type.tsym == sym) result = that;
                 else super.visitTypeParameter(that);
             }
         }