--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/src/share/vm/gc/serial/genMarkSweep.hpp	Wed May 13 15:16:06 2015 +0200
@@ -0,0 +1,53 @@
+/*
+ * Copyright (c) 2001, 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.
+ *
+ */
+
+#ifndef SHARE_VM_GC_SERIAL_GENMARKSWEEP_HPP
+#define SHARE_VM_GC_SERIAL_GENMARKSWEEP_HPP
+
+#include "gc/serial/markSweep.hpp"
+
+class GenMarkSweep : public MarkSweep {
+  friend class VM_MarkSweep;
+  friend class G1MarkSweep;
+ public:
+  static void invoke_at_safepoint(int level, ReferenceProcessor* rp,
+                                  bool clear_all_softrefs);
+
+ private:
+
+  // Mark live objects
+  static void mark_sweep_phase1(int level, bool clear_all_softrefs);
+  // Calculate new addresses
+  static void mark_sweep_phase2();
+  // Update pointers
+  static void mark_sweep_phase3(int level);
+  // Move objects to new positions
+  static void mark_sweep_phase4();
+
+  // Temporary data structures for traversal and storing/restoring marks
+  static void allocate_stacks();
+  static void deallocate_stacks();
+};
+
+#endif // SHARE_VM_GC_SERIAL_GENMARKSWEEP_HPP