--- old/src/share/vm/prims/jvmtiRedefineClasses.cpp	Wed Jan 14 00:02:10 2015
+++ new/src/share/vm/prims/jvmtiRedefineClasses.cpp	Wed Jan 14 00:02:10 2015
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2003, 2014, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2003, 2015, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -3376,7 +3376,9 @@
     // not yet in the vtable, because the vtable setup is in progress.
     // This must be done after we adjust the default_methods and
     // default_vtable_indices for methods already in the vtable.
+    // If redefining Unsafe, walk all the vtables looking for entries.
     if (ik->vtable_length() > 0 && (_the_class_oop->is_interface()
+        || _the_class_oop == SystemDictionary::misc_Unsafe_klass()
         || ik->is_subtype_of(_the_class_oop))) {
       // ik->vtable() creates a wrapper object; rm cleans it up
       ResourceMark rm(_thread);
@@ -3396,7 +3398,9 @@
     // interface, then we have to call adjust_method_entries() for
     // every InstanceKlass that has an itable since there isn't a
     // subclass relationship between an interface and an InstanceKlass.
+    // If redefining Unsafe, walk all the itables looking for entries.
     if (ik->itable_length() > 0 && (_the_class_oop->is_interface()
+        || _the_class_oop == SystemDictionary::misc_Unsafe_klass()
         || ik->is_subclass_of(_the_class_oop))) {
       // ik->itable() creates a wrapper object; rm cleans it up
       ResourceMark rm(_thread);