--- old/src/share/classes/sun/reflect/generics/tree/BottomSignature.java	2014-11-27 09:55:08.639648507 +0300
+++ new/src/share/classes/sun/reflect/generics/tree/BottomSignature.java	2014-11-27 09:55:08.435753073 +0300
@@ -28,7 +28,7 @@
 import sun.reflect.generics.visitor.TypeTreeVisitor;
 
 public class BottomSignature implements FieldTypeSignature {
-    private static BottomSignature singleton = new BottomSignature();
+    private static final BottomSignature singleton = new BottomSignature();
 
     private BottomSignature(){}