8016444: Duplicate zombie check in safe_for_sender

Reviewed-by: dholmes, sla

src/cpu/sparc/vm/frame_sparc.cpp

@@ -257,11 +257,6 @@ bool frame::safe_for_sender(JavaThread *thread) {
       return false;
     }
 
-    // Could be a zombie method
-    if (sender_blob->is_zombie() || sender_blob->is_unloaded()) {
-      return false;
-    }
-
     // It should be safe to construct the sender though it might not be valid
 
     frame sender(_SENDER_SP, younger_sp, adjusted_stack);

src/share/vm/memory/referenceProcessorStats.hpp

 /*
- * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2012, 2013, 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