--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/testlibrary_tests/RedefineClassTest.java	Mon Jun 02 19:08:18 2014 +0200
@@ -0,0 +1,54 @@
+/*
+ * Copyright (c) 2014, 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.
+ */
+
+/*
+ * @test
+ * @library /testlibrary
+ * @summary Proof of concept test for RedefineClassHelper
+ * @build RedefineClassHelper
+ * @run main RedefineClassHelper
+ * @run main/othervm -javaagent:redefineagent.jar RedefineClassTest
+ */
+
+import static com.oracle.java.testlibrary.Asserts.*;
+import com.oracle.java.testlibrary.*;
+
+/*
+ * Proof of concept test for the test utility class RedefineClassHelper
+ */
+public class RedefineClassTest {
+
+    public static String newClass = "class RedefineClassTest$A { public int Method() { return 2; } }";
+    public static void main(String[] args) throws Exception {
+        A a = new A();
+        assertTrue(a.Method() == 1);
+        RedefineClassHelper.redefineClass(A.class, newClass);
+        assertTrue(a.Method() == 2);
+    }
+
+    static class A {
+        public int Method() {
+            return 1;
+        }
+    }
+}