--- old/src/share/classes/sun/reflect/generics/tree/MethodTypeSignature.java	2014-11-27 09:55:13.241288627 +0300
+++ new/src/share/classes/sun/reflect/generics/tree/MethodTypeSignature.java	2014-11-27 09:55:13.061380891 +0300
@@ -28,10 +28,10 @@
 import sun.reflect.generics.visitor.Visitor;
 
 public class MethodTypeSignature implements Signature {
-    private FormalTypeParameter[] formalTypeParams;
-    private TypeSignature[] parameterTypes;
-    private ReturnType returnType;
-    private FieldTypeSignature[] exceptionTypes;
+    private final FormalTypeParameter[] formalTypeParams;
+    private final TypeSignature[] parameterTypes;
+    private final ReturnType returnType;
+    private final FieldTypeSignature[] exceptionTypes;
 
     private MethodTypeSignature(FormalTypeParameter[] ftps,
                                 TypeSignature[] pts,