--- /dev/null	2015-07-25 15:02:20.097409468 -0700
+++ new/test/lib/testlibrary/jdk/testlibrary/SerializationUtils.java	2015-10-30 14:04:25.762175443 -0700
@@ -0,0 +1,51 @@
+/*
+ * Copyright (c) 2015, 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.
+ */
+
+package jdk.testlibrary;
+
+import java.io.*;
+
+/**
+ * Common library for various test serialization utility functions.
+ */
+public final class SerializationUtils {
+    /*
+     * Serialize an object into byte array.
+     */
+    public static byte[] serialize(Object obj) throws Exception {
+        try (ByteArrayOutputStream bs = new ByteArrayOutputStream();
+                ObjectOutputStream out = new ObjectOutputStream(bs);) {
+            out.writeObject(obj);
+            return bs.toByteArray();
+        }
+    }
+
+    /*
+     * Deserialize an object from byte array.
+     */
+    public static Object deserialize(byte[] ba) throws Exception {
+        try (ObjectInputStream in = new ObjectInputStream(new ByteArrayInputStream(ba));) {
+            return in.readObject();
+        }
+    }
+}