VerifyDynamicObjHandleTable.java revision 2362
0N/A/*
603N/A * Copyright (c) 1998, Oracle and/or its affiliates. All rights reserved.
0N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
0N/A *
0N/A * This code is free software; you can redistribute it and/or modify it
0N/A * under the terms of the GNU General Public License version 2 only, as
0N/A * published by the Free Software Foundation.
0N/A *
0N/A * This code is distributed in the hope that it will be useful, but WITHOUT
0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
0N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
0N/A * version 2 for more details (a copy is included in the LICENSE file that
0N/A * accompanied this code).
0N/A *
0N/A * You should have received a copy of the GNU General Public License version
0N/A * 2 along with this work; if not, write to the Free Software Foundation,
0N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
0N/A *
0N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
0N/A * or visit www.oracle.com if you need additional information or have any
0N/A * questions.
0N/A */
0N/A
0N/A/* @test
0N/A * @clean A
0N/A * @bug 4146453
0N/A * @summary Test that regrow of object/handle table of ObjectOutputStream works.
0N/A */
0N/A
0N/Aimport java.io.*;
0N/Aimport java.util.HashSet;
0N/Aimport java.util.Iterator;
0N/A
0N/Aclass A implements Serializable {
0N/A static HashSet writeObjectExtent = new HashSet();
0N/A
0N/A private void writeObject(ObjectOutputStream out) throws IOException {
0N/A if (writeObjectExtent.contains(this)) {
0N/A throw new InvalidObjectException("writeObject: object " +
0N/A this.toString() + " has already "
0N/A + "been serialized and should " +
0N/A "have be serialized by reference.");
0N/A } else {
0N/A writeObjectExtent.add(this);
0N/A }
0N/A out.defaultWriteObject();
0N/A }
0N/A
0N/A A() {
0N/A }
0N/A}
0N/A
0N/Apublic class VerifyDynamicObjHandleTable {
0N/A public static void main(String args[])
0N/A throws IOException, ClassNotFoundException
0N/A {
0N/A ObjectOutputStream out =
0N/A new ObjectOutputStream(new ByteArrayOutputStream(3000));
0N/A for (int i = 0; i < 1000; i++) {
0N/A out.writeObject(new A());
0N/A }
0N/A
0N/A // Make sure that serialization subsystem does not
0N/A // allow writeObject to be called on any objects that
0N/A // have already been serialized. These objects should be
0N/A // written out by reference.
0N/A Iterator iter = A.writeObjectExtent.iterator();
0N/A while (iter.hasNext()) {
0N/A out.writeObject(iter.next());
0N/A }
0N/A
0N/A out.close();
0N/A }
0N/A}
0N/A