--- /dev/null	2018-03-12 09:19:30.040007636 +0100
+++ new/src/hotspot/share/gc/serial/serial_specialized_oop_closures.hpp	2018-04-06 00:21:32.921906217 +0200
@@ -0,0 +1,57 @@
+/*
+ * Copyright (c) 2001, 2017, 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_GC_SERIAL_SERIAL_SPECIALIZED_OOP_CLOSURES_HPP
+#define SHARE_GC_SERIAL_SERIAL_SPECIALIZED_OOP_CLOSURES_HPP
+
+// The following OopClosure types get specialized versions of
+// "oop_oop_iterate" that invoke the closures' do_oop methods
+// non-virtually, using a mechanism defined in this file.  Extend these
+// macros in the obvious way to add specializations for new closures.
+
+// Forward declarations.
+
+// DefNew
+class ScanClosure;
+class FastScanClosure;
+class FilteringClosure;
+
+// MarkSweep
+class MarkAndPushClosure;
+class AdjustPointerClosure;
+
+#define SPECIALIZED_OOP_OOP_ITERATE_CLOSURES_S(f)         \
+  f(ScanClosure,_nv)                                      \
+  f(FastScanClosure,_nv)                                  \
+  f(FilteringClosure,_nv)
+
+#define SPECIALIZED_OOP_OOP_ITERATE_CLOSURES_MS(f)        \
+  f(MarkAndPushClosure,_nv)                               \
+  f(AdjustPointerClosure,_nv)
+
+#define SPECIALIZED_SINCE_SAVE_MARKS_CLOSURES_YOUNG_S(f)  \
+  f(ScanClosure,_nv)                                      \
+  f(FastScanClosure,_nv)
+
+#endif // SHARE_GC_SERIAL_SERIAL_SPECIALIZED_OOP_CLOSURES_HPP