| /* |
| * Copyright (c) 2004, 2013, 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 4679556 |
| * @summary Tests for duplication of some kind instances |
| * @author Sergey Malenkov, Mark Davidson, Philip Milne |
| */ |
| |
| import java.beans.DefaultPersistenceDelegate; |
| import java.beans.Encoder; |
| import java.beans.Expression; |
| import java.beans.XMLEncoder; |
| |
| /** |
| * Demonstrates the archiver bug, where the XMLEncoder duplicates |
| * the instance of class A because it is required as the target of |
| * a factory method (to produce an instance of class C). |
| * See the output in the file Test.xml for the results and note |
| * the (invalid) forward reference to the instance of class C. |
| * |
| * TO FIX |
| * |
| * Move the first line of the XMLEncoder::mark(Statement method) |
| * to the end of the method. |
| * I.e. replace the mark() method in XMLEncoder with this: |
| * <pre>private void mark(Statement stm) { |
| * Object[] args = stm.getArguments(); |
| * for (int i = 0; i < args.length; i++) { |
| * Object arg = args[i]; |
| * mark(arg, true); |
| * } |
| * mark(stm.getTarget(), false); |
| * }</pre> |
| * |
| * VALID ARCHIVE (WITH FIX): |
| * <pre><?xml version="1.0" encoding="UTF-8"?> |
| * <java version="1.4.0" class="java.beans.XMLDecoder"> |
| * <object class="TestDuplicates$A"> |
| * <void id="TestDuplicates$C0" method="createC"/> |
| * <void property="x"> |
| * <void property="x"> |
| * <object idref="TestDuplicates$C0"/> |
| * </void> |
| * </void> |
| * </object> |
| * </java></pre> |
| * |
| * INVALID ARCHIVE (WITHOUT FIX): |
| * <object class="TestDuplicates$A"> |
| * <void property="x"> |
| * <void property="x"> |
| * <void class="TestDuplicates$A"> |
| * <void property="x"> |
| * <void property="x"> |
| * <object idref="TestDuplicates$C0"/> |
| * </void> |
| * </void> |
| * <void id="TestDuplicates$C0" method="createC"/> |
| * </void> |
| * <object idref="TestDuplicates$C0"/> |
| * </void> |
| * </void> |
| * <void id="TestDuplicates$C0" method="createC"/> |
| * </object> |
| * </java></pre> |
| */ |
| public class Test4679556 extends AbstractTest { |
| public static void main(String[] args) { |
| new Test4679556().test(true); |
| } |
| |
| protected Object getObject() { |
| A a = new A(); |
| B b = (B) a.getX(); |
| b.setX(a.createC()); |
| return a; |
| } |
| |
| protected Object getAnotherObject() { |
| return new A(); |
| } |
| |
| protected void initialize(XMLEncoder encoder) { |
| encoder.setPersistenceDelegate(C.class, new DefaultPersistenceDelegate() { |
| protected Expression instantiate(Object oldInstance, Encoder out) { |
| C c = (C) oldInstance; |
| return new Expression(c, c.getX(), "createC", new Object[] {}); |
| } |
| }); |
| } |
| |
| public static class Base { |
| private Object x; |
| |
| public Object getX() { |
| return this.x; |
| } |
| |
| public void setX(Object x) { |
| this.x = x; |
| } |
| } |
| |
| public static class A extends Base { |
| public A() { |
| setX(new B()); |
| } |
| |
| public C createC() { |
| return new C(this); |
| } |
| } |
| |
| public static class B extends Base { |
| } |
| |
| public static class C extends Base { |
| private C(Object x) { |
| setX(x); |
| } |
| } |
| } |