beans/XMLEncoder/Test4679556.java

	Test4679556.java revision 2362
0N/A/*
0N/A * Copyright (c) 2004, 2007, 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.
873N/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
4044N/A/*
0N/A * @test
0N/A * @bug 4679556
0N/A * @summary Tests for duplication of some kind instances
0N/A * @author Sergey Malenkov, Mark Davidson, Philip Milne
0N/A */
0N/A
0N/Aimport java.beans.DefaultPersistenceDelegate;
0N/Aimport java.beans.Encoder;
0N/Aimport java.beans.Expression;
2636N/Aimport java.beans.XMLEncoder;
2636N/A
2636N/A/**
2636N/A * Demonstrates the archiver bug, where the XMLEncoder duplicates
0N/A * the instance of class A because it is required as the target of
2636N/A * a factory method (to produce an instance of class C).
2636N/A * See the output in the file Test.xml for the results and note
2636N/A * the (invalid) forward reference to the instance of class C.
2636N/A *
2636N/A * TO FIX
0N/A *
2636N/A * Move the first line of the XMLEncoder::mark(Statement method)
2636N/A * to the end of the method.
2636N/A * I.e. replace the mark() method in XMLEncoder with this:
2636N/A * <pre>private void mark(Statement stm) {
2636N/A *     Object[] args = stm.getArguments();
2636N/A *     for (int i = 0; i < args.length; i++) {
2636N/A *         Object arg = args[i];
2636N/A *         mark(arg, true);
2636N/A *     }
2636N/A *     mark(stm.getTarget(), false);
2636N/A * }</pre>
2636N/A *
2636N/A * VALID ARCHIVE (WITH FIX):
2636N/A * <pre>&lt;?xml version="1.0" encoding="UTF-8"?&gt;
2636N/A * &lt;java version="1.4.0" class="java.beans.XMLDecoder"&gt;
2636N/A *  &lt;object class="TestDuplicates$A"&gt;
2636N/A *   &lt;void id="TestDuplicates$C0" method="createC"/&gt;
0N/A *   &lt;void property="x"&gt;
2636N/A *    &lt;void property="x"&gt;
2636N/A *     &lt;object idref="TestDuplicates$C0"/&gt;
2636N/A *    &lt;/void&gt;
0N/A *   &lt;/void&gt;
0N/A *  &lt;/object&gt;
2636N/A * &lt;/java&gt;</pre>
2636N/A *
2636N/A * INVALID ARCHIVE (WITHOUT FIX):
0N/A *  &lt;object class="TestDuplicates$A"&gt;
2636N/A *   &lt;void property="x"&gt;
2636N/A *    &lt;void property="x"&gt;
2636N/A *     &lt;void class="TestDuplicates$A"&gt;
2636N/A *      &lt;void property="x"&gt;
2636N/A *       &lt;void property="x"&gt;
2636N/A *        &lt;object idref="TestDuplicates$C0"/&gt;
2636N/A *       &lt;/void&gt;
2636N/A *      &lt;/void&gt;
2636N/A *      &lt;void id="TestDuplicates$C0" method="createC"/&gt;
2636N/A *     &lt;/void&gt;
2636N/A *     &lt;object idref="TestDuplicates$C0"/&gt;
2636N/A *    &lt;/void&gt;
2636N/A *   &lt;/void&gt;
2636N/A *   &lt;void id="TestDuplicates$C0" method="createC"/&gt;
2636N/A *  &lt;/object&gt;
2636N/A * &lt;/java&gt;</pre>
2636N/A */
2636N/Apublic class Test4679556 extends AbstractTest {
2636N/A    public static void main(String[] args) {
2636N/A        new Test4679556().test(true);
2636N/A    }
2636N/A
0N/A    protected Object getObject() {
0N/A        A a = new A();
2636N/A        B b = (B) a.getX();
2636N/A        b.setX(a.createC());
2636N/A        return a;
0N/A    }
0N/A
2636N/A    protected Object getAnotherObject() {
2636N/A        return new A();
2636N/A    }
2636N/A
2636N/A    protected void initialize(XMLEncoder encoder) {
2636N/A        encoder.setExceptionListener(this);
2636N/A        encoder.setPersistenceDelegate(C.class, new DefaultPersistenceDelegate() {
2636N/A            protected Expression instantiate(Object oldInstance, Encoder out) {
2636N/A                C c = (C) oldInstance;
0N/A                return new Expression(c, c.getX(), "createC", new Object[] {});
2636N/A            }
2636N/A        });
2636N/A    }
2636N/A
2636N/A    public static class Base {
2636N/A        private Object x;
2636N/A
2636N/A        public Object getX() {
2636N/A            return this.x;
2636N/A        }
2636N/A
2636N/A        public void setX(Object x) {
2636N/A            this.x = x;
2636N/A        }
2636N/A    }
2636N/A
2636N/A    public static class A extends Base {
2636N/A        public A() {
0N/A            setX(new B());
0N/A        }
2636N/A
2636N/A        public C createC() {
2636N/A            return new C(this);
2636N/A        }
2636N/A    }
2636N/A
2636N/A    public static class B extends Base {
2636N/A    }
2636N/A
2636N/A    public static class C extends Base {
2636N/A        private C(Object x) {
0N/A            setX(x);
0N/A        }
2636N/A    }
2636N/A}
2636N/A