--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hotspot/share/jfr/leakprofiler/chains/rootSetClosure.hpp	Tue May 15 20:24:34 2018 +0200
@@ -0,0 +1,46 @@
+/*
+ * Copyright (c) 2014, 2018, 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_JFR_LEAKPROFILER_CHAINS_ROOTSETCLOSURE_HPP
+#define SHARE_VM_JFR_LEAKPROFILER_CHAINS_ROOTSETCLOSURE_HPP
+
+#include "memory/iterator.hpp"
+#include "oops/oop.hpp"
+
+class EdgeQueue;
+
+class RootSetClosure: public ExtendedOopClosure {
+ private:
+  RootSetClosure(EdgeQueue* edge_queue);
+  EdgeQueue* _edge_queue;
+  void closure_impl(const oop* reference, const oop pointee);
+ public:
+  static void add_to_queue(EdgeQueue* edge_queue);
+  static void process_roots(OopClosure* closure);
+
+  virtual void do_oop(oop* reference);
+  virtual void do_oop(narrowOop* reference);
+};
+
+#endif // SHARE_VM_JFR_LEAKPROFILER_CHAINS_ROOTSETCLOSURE_HPP