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diff --git a/test/java/text/Format/MessageFormat/Bug4185816Test.java b/test/java/text/Format/MessageFormat/Bug4185816Test.java
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+/*
+ * Copyright (c) 1999, 2016, 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
+ * @bug 4185816
+ * @library /java/text/testlib
+ * @build Bug4185816Test IntlTest HexDumpReader
+ * @run main Bug4185816Test
+ * @summary test that MessageFormat invariants are preserved across serialization
+ */
+/*
+ *
+ *
+ * (C) Copyright IBM Corp. 1996 - 1999 - All Rights Reserved
+ *
+ * Portions copyright (c) 2007 Sun Microsystems, Inc.
+ * All Rights Reserved.
+ *
+ * The original version of this source code and documentation
+ * is copyrighted and owned by Taligent, Inc., a wholly-owned
+ * subsidiary of IBM. These materials are provided under terms
+ * of a License Agreement between Taligent and Sun. This technology
+ * is protected by multiple US and International patents.
+ *
+ * This notice and attribution to Taligent may not be removed.
+ * Taligent is a registered trademark of Taligent, Inc.
+ *
+ * Permission to use, copy, modify, and distribute this software
+ * and its documentation for NON-COMMERCIAL purposes and without
+ * fee is hereby granted provided that this copyright notice
+ * appears in all copies. Please refer to the file "copyright.html"
+ * for further important copyright and licensing information.
+ *
+ * SUN MAKES NO REPRESENTATIONS OR WARRANTIES ABOUT THE SUITABILITY OF
+ * THE SOFTWARE, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
+ * TO THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
+ * PARTICULAR PURPOSE, OR NON-INFRINGEMENT. SUN SHALL NOT BE LIABLE FOR
+ * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
+ * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES.
+ */
+
+import java.util.*;
+import java.io.*;
+import java.text.ChoiceFormat;
+import java.text.MessageFormat;
+
+/**
+ *  A Locale can never contains language codes of he, yi or id.
+ */
+public class Bug4185816Test extends IntlTest {
+    private static final String FILE_NAME = "Bug4185816.ser";
+    private static final String CORRUPT_FILE_NAME = "Bug4185816Corrupt.ser";
+
+    public static void main(String[] args) throws Exception {
+        if (args.length == 1 && args[0].equals("prepTest")) {
+            prepTest();
+        } else {
+            new Bug4185816Test().run(args);
+        }
+    }
+
+    public void testIt() throws Exception {
+        Exception e = checkStreaming(FILE_NAME);
+        if (e != null) {
+            errln("MessageFormat did not stream in valid stream: "+e);
+            e.printStackTrace();
+        }
+        e = checkStreaming(CORRUPT_FILE_NAME);
+        if (!(e instanceof InvalidObjectException)) {
+            errln("MessageFormat did NOT detect corrupt stream: "+e);
+            e.printStackTrace();
+        }
+    }
+
+    public Exception checkStreaming(final String fileName) {
+        try {
+            final InputStream is = HexDumpReader.getStreamFromHexDump(fileName + ".txt");
+            final ObjectInputStream in = new ObjectInputStream(is);
+            final MessageFormat form = (MessageFormat)in.readObject();
+            final Object[] testArgs = {new Long(12373), "MyDisk"};
+            final String result = form.format(testArgs);
+            in.close();
+        } catch (Exception e) {
+            return e;
+        }
+        return null;
+    }
+
+    /**
+     * Create a data file for this test.  The data file must be corrupted by hand.
+     */
+    private static void prepTest() {
+        writeFormatToFile(FILE_NAME);
+        writeFormatToFile(CORRUPT_FILE_NAME);
+    }
+
+    private static void writeFormatToFile(final String name) {
+        try {
+            ObjectOutputStream out = new ObjectOutputStream(
+                    new FileOutputStream(name));
+
+            MessageFormat fmt = new MessageFormat("The disk \"{1}\" contains {0}.");
+            double[] filelimits = {0,1,2};
+            String[] filepart = {"no files","one file","{0,number} files"};
+            ChoiceFormat fileform = new ChoiceFormat(filelimits, filepart);
+            fmt.setFormat(1,fileform); // NOT zero, see below
+
+            out.writeObject(fmt);
+            out.close();
+        } catch (Exception e) {
+            System.out.println(e);
+        }
+    }
+}