--- /dev/null	2017-11-09 09:38:01.297999907 +0100
+++ new/src/hotspot/share/jfr/leakprofiler/checkpoint/rootResolver.hpp	2018-04-09 14:42:16.040828976 +0200
@@ -0,0 +1,52 @@
+/*
+ * 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_CHECKPOINT_ROOTRESOLVER_HPP
+#define SHARE_VM_JFR_LEAKPROFILER_CHECKPOINT_ROOTRESOLVER_HPP
+
+#include "memory/allocation.hpp"
+#include "jfr/leakprofiler/utilities/rootType.hpp"
+#include "oops/oopsHierarchy.hpp"
+
+struct RootCallbackInfo {
+  const void* _high;
+  const void* _low;
+  const void* _context;
+  OldObjectRoot::System _system;
+  OldObjectRoot::Type _type;
+};
+
+class RootCallback {
+ public:
+  virtual bool process(const RootCallbackInfo& info) = 0;
+  virtual int entries() const = 0;
+  virtual const void* at(int idx) const = 0;
+};
+
+class RootResolver : public AllStatic {
+ public:
+  static void resolve(RootCallback& callback);
+};
+
+#endif // SHARE_VM_JFR_LEAKPROFILER_CHECKPOINT_ROOTRESOLVER_HPP