diff -r e45861098f5a -r fec48bf5a827 hotspot/src/share/vm/gc/g1/g1OopClosures.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/src/share/vm/gc/g1/g1OopClosures.cpp	Wed May 13 15:16:06 2015 +0200
@@ -0,0 +1,58 @@
+/*
+ * Copyright (c) 2014, 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
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+#include "precompiled.hpp"
+#include "gc/g1/g1CollectedHeap.inline.hpp"
+#include "gc/g1/g1OopClosures.inline.hpp"
+#include "gc/g1/g1ParScanThreadState.hpp"
+#include "gc/g1/g1_specialized_oop_closures.hpp"
+#include "memory/iterator.inline.hpp"
+#include "utilities/stack.inline.hpp"
+
+G1ParCopyHelper::G1ParCopyHelper(G1CollectedHeap* g1,  G1ParScanThreadState* par_scan_state) :
+  G1ParClosureSuper(g1, par_scan_state), _scanned_klass(NULL),
+  _cm(_g1->concurrent_mark()) {}
+
+G1ParClosureSuper::G1ParClosureSuper(G1CollectedHeap* g1) :
+  _g1(g1), _par_scan_state(NULL), _worker_id(UINT_MAX) { }
+
+G1ParClosureSuper::G1ParClosureSuper(G1CollectedHeap* g1, G1ParScanThreadState* par_scan_state) :
+  _g1(g1), _par_scan_state(NULL),
+  _worker_id(UINT_MAX) {
+  set_par_scan_thread_state(par_scan_state);
+}
+
+void G1ParClosureSuper::set_par_scan_thread_state(G1ParScanThreadState* par_scan_state) {
+  assert(_par_scan_state == NULL, "_par_scan_state must only be set once");
+  assert(par_scan_state != NULL, "Must set par_scan_state to non-NULL.");
+
+  _par_scan_state = par_scan_state;
+  _worker_id = par_scan_state->queue_num();
+
+  assert(_worker_id < MAX2((uint)ParallelGCThreads, 1u),
+         err_msg("The given worker id %u must be less than the number of threads %u", _worker_id, MAX2((uint)ParallelGCThreads, 1u)));
+}
+
+// Generate G1 specialized oop_oop_iterate functions.
+SPECIALIZED_OOP_OOP_ITERATE_CLOSURES_G1(ALL_KLASS_OOP_OOP_ITERATE_DEFN)