--- old/src/share/vm/oops/instanceRefKlass.cpp	2016-03-10 16:29:21.262040052 +0100
+++ new/src/share/vm/oops/instanceRefKlass.cpp	2016-03-10 16:29:21.129034460 +0100
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997, 2015, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2016, 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
@@ -87,48 +87,3 @@
     guarantee(InstanceKlass::cast(next->klass())->is_reference_instance_klass(), "next field verify failed");
   }
 }
-
-bool InstanceRefKlass::owns_pending_list_lock(JavaThread* thread) {
-  if (java_lang_ref_Reference::pending_list_lock() == NULL) return false;
-  Handle h_lock(thread, java_lang_ref_Reference::pending_list_lock());
-  return ObjectSynchronizer::current_thread_holds_lock(thread, h_lock);
-}
-
-void InstanceRefKlass::acquire_pending_list_lock(BasicLock *pending_list_basic_lock) {
-  // we may enter this with pending exception set
-  PRESERVE_EXCEPTION_MARK;  // exceptions are never thrown, needed for TRAPS argument
-
-  // Create a HandleMark in case we retry a GC multiple times.
-  // Each time we attempt the GC, we allocate the handle below
-  // to hold the pending list lock. We want to free this handle.
-  HandleMark hm;
-
-  Handle h_lock(THREAD, java_lang_ref_Reference::pending_list_lock());
-  ObjectSynchronizer::fast_enter(h_lock, pending_list_basic_lock, false, THREAD);
-  assert(ObjectSynchronizer::current_thread_holds_lock(
-           JavaThread::current(), h_lock),
-         "Locking should have succeeded");
-  if (HAS_PENDING_EXCEPTION) CLEAR_PENDING_EXCEPTION;
-}
-
-void InstanceRefKlass::release_and_notify_pending_list_lock(
-  BasicLock *pending_list_basic_lock) {
-  // we may enter this with pending exception set
-  PRESERVE_EXCEPTION_MARK;  // exceptions are never thrown, needed for TRAPS argument
-
-  // Create a HandleMark in case we retry a GC multiple times.
-  // Each time we attempt the GC, we allocate the handle below
-  // to hold the pending list lock. We want to free this handle.
-  HandleMark hm;
-
-  Handle h_lock(THREAD, java_lang_ref_Reference::pending_list_lock());
-  assert(ObjectSynchronizer::current_thread_holds_lock(
-           JavaThread::current(), h_lock),
-         "Lock should be held");
-  // Notify waiters on pending lists lock if there is any reference.
-  if (java_lang_ref_Reference::pending_list() != NULL) {
-    ObjectSynchronizer::notifyall(h_lock, THREAD);
-  }
-  ObjectSynchronizer::fast_exit(h_lock(), pending_list_basic_lock, THREAD);
-  if (HAS_PENDING_EXCEPTION) CLEAR_PENDING_EXCEPTION;
-}