--- /dev/null	2017-03-07 11:44:12.271151064 +0100
+++ new/src/share/vm/utilities/traits/isDerived.hpp	2017-04-25 16:46:42.115170765 +0200
@@ -0,0 +1,53 @@
+/*
+ * 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_UTILITIES_TRAITS_ISDERIVED_HPP
+#define SHARE_VM_UTILITIES_TRAITS_ISDERIVED_HPP
+
+#include "memory/allocation.hpp"
+#include "utilities/traits/isSame.hpp"
+
+namespace IsDerivedImpl {
+  template <typename DerivedType, typename BaseType>
+  struct Helper: public StackObj {
+    operator BaseType* () const;
+    operator DerivedType* ();
+  };
+}
+
+template <typename DerivedType, typename BaseType>
+struct IsDerived: AllStatic {
+  typedef char yes[1];
+  typedef char no[2];
+
+  template <typename T>
+  static yes& test(DerivedType*, T);
+  static no& test(BaseType*, int);
+
+  enum {
+    value = IsSame<DerivedType, BaseType>::value || sizeof(test(IsDerivedImpl::Helper<DerivedType, BaseType>(), 0)) == sizeof(yes)
+  };
+};
+
+#endif // SHARE_VM_UTILITIES_TRAITS_ISDERIVED_HPP