--- /dev/null	2010-12-13 15:40:14.841669000 +0000
+++ new/test/java/util/Hashtable/SimpleSerialization.java	2011-01-10 10:52:07.000000000 +0000
@@ -0,0 +1,83 @@
+/*
+ * Copyright 2010-2011 IBM Corporation.  All Rights Reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is licensed by Oracle to you under the terms of the GNU
+ * General Public License version 2 only.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * 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
+ * @bug 6927486
+ * @summary A serialized Hashtable can be de-serialized properly.
+ * @author Neil Richards <neil.richards@ngmr.net>, <neil_richards@uk.ibm.com>
+ */
+
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.io.ObjectInputStream;
+import java.io.ObjectOutputStream;
+import java.io.PrintWriter;
+import java.io.StringWriter;
+import java.util.Hashtable;
+
+public class SimpleSerialization {
+    public static void main(final String[] args) throws Exception {
+        Hashtable<String, String> h1 = new Hashtable<>();
+
+        h1.put("key", "value");
+
+        final ByteArrayOutputStream baos = new ByteArrayOutputStream();
+        final ObjectOutputStream oos = new ObjectOutputStream(baos);
+
+        oos.writeObject(h1);
+        oos.close();
+
+        final byte[] data = baos.toByteArray();
+        final ByteArrayInputStream bais = new ByteArrayInputStream(data);
+        final ObjectInputStream ois = new ObjectInputStream(bais);
+
+        final Object deserializedObject = ois.readObject();
+        ois.close();
+
+        if (false == h1.equals(deserializedObject)) {
+            throw new RuntimeException(getFailureText(h1, deserializedObject));
+        }
+    }
+
+    private static String getFailureText(final Object orig, final Object copy) {
+        final StringWriter sw = new StringWriter();
+        final PrintWriter pw = new PrintWriter(sw);
+
+        pw.println("Test FAILED: Deserialized object is not equal to the original object");
+        pw.print("\tOriginal: ");
+        printObject(pw, orig).println();
+        pw.print("\tCopy:     ");
+        printObject(pw, copy).println();
+
+        pw.close();
+        return sw.toString();
+    }
+
+    private static PrintWriter printObject(final PrintWriter pw, final Object o) {
+        pw.printf("%s@%08x", o.getClass().getName(), System.identityHashCode(o));
+        return pw;
+    }
+}