97 lines
3.7 KiB
Java
97 lines
3.7 KiB
Java
/*
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* Copyright (c) 2010, 2012, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*
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* -------------------------------------------
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*
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* Portions Copyright (c) 2010, 2011 IBM Corporation
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*/
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/*
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* @test
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* @bug 6927486
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* @summary A serialized Hashtable can be de-serialized properly.
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* @author Neil Richards <neil.richards@ngmr.net>, <neil_richards@uk.ibm.com>
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*/
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import java.io.ByteArrayInputStream;
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import java.io.ByteArrayOutputStream;
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import java.io.ObjectInputStream;
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import java.io.ObjectOutputStream;
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import java.io.PrintWriter;
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import java.io.StringWriter;
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import java.util.Hashtable;
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import java.util.Map;
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public class SimpleSerialization {
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public static void main(final String[] args) throws Exception {
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Hashtable<String, String> h1 = new Hashtable<>();
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System.err.println("*** BEGIN TEST ***");
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h1.put("key", "value");
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final ByteArrayOutputStream baos = new ByteArrayOutputStream();
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try (ObjectOutputStream oos = new ObjectOutputStream(baos)) {
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oos.writeObject(h1);
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}
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final byte[] data = baos.toByteArray();
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final ByteArrayInputStream bais = new ByteArrayInputStream(data);
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final Object deserializedObject;
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try (ObjectInputStream ois = new ObjectInputStream(bais)) {
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deserializedObject = ois.readObject();
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}
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if(!h1.getClass().isInstance(deserializedObject)) {
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throw new RuntimeException("Result not assignable to type of h1");
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}
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if (false == h1.equals(deserializedObject)) {
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Hashtable<String, String> d1 = (Hashtable<String, String>) h1;
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for(Map.Entry entry: h1.entrySet()) {
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System.err.println("h1.key::" + entry.getKey() + " d1.containsKey()::" + d1.containsKey((String) entry.getKey()));
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System.err.println("h1.value::" + entry.getValue() + " d1.contains()::" + d1.contains(entry.getValue()));
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System.err.println("h1.value == d1.value " + entry.getValue().equals(d1.get((String) entry.getKey())));
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}
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throw new RuntimeException(getFailureText(h1, deserializedObject));
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}
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}
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private static String getFailureText(final Object orig, final Object copy) {
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final StringWriter sw = new StringWriter();
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try (PrintWriter pw = new PrintWriter(sw)) {
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pw.println("Test FAILED: Deserialized object is not equal to the original object");
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pw.print("\tOriginal: ");
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printObject(pw, orig).println();
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pw.print("\tCopy: ");
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printObject(pw, copy).println();
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}
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return sw.toString();
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}
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private static PrintWriter printObject(final PrintWriter pw, final Object o) {
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pw.printf("%s@%08x", o.getClass().getName(), System.identityHashCode(o));
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return pw;
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}
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}
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