--- /dev/null	2018-03-24 19:23:43.035000297 -0400
+++ new/src/hotspot/share/oops/weakHandle.hpp	2018-03-26 13:40:57.633344453 -0400
@@ -0,0 +1,51 @@
+/*
+ * Copyright (c) 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_VM_OOPS_WEAKHANDLE_HPP
+#define SHARE_VM_OOPS_WEAKHANDLE_HPP
+
+#include "oops/oop.hpp"
+#include "runtime/handles.hpp"
+
+class outputStream;
+
+class WeakHandle {
+private:
+  oop* _obj;
+
+  WeakHandle(oop* w) : _obj(w) {}
+public:
+  WeakHandle() : _obj(NULL) {} // needed for init
+
+  static WeakHandle create(Handle obj);
+  oop resolve() const;
+  oop peek() const;
+  void release() const;
+  bool is_null() const { return _obj == NULL; }
+
+  void print() const;
+  void print_on(outputStream* st) const;
+};
+
+#endif // SHARE_VM_OOPS_WEAKHANDLE_HPP