--- old/src/share/classes/sun/reflect/generics/tree/TypeVariableSignature.java	2014-11-27 09:55:14.768505418 +0300
+++ new/src/share/classes/sun/reflect/generics/tree/TypeVariableSignature.java	2014-11-27 09:55:14.572605882 +0300
@@ -28,7 +28,7 @@
 import sun.reflect.generics.visitor.TypeTreeVisitor;
 
 public class TypeVariableSignature implements FieldTypeSignature {
-    private String identifier;
+    private final String identifier;
 
     private TypeVariableSignature(String id) {identifier = id;}