/*
* 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
* @ run main / othervm - Djava . security . manager = allow Test4679556
* @ 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 > & lt ; ? xml version = " 1 . 0 " encoding = " UTF - 8 " ? & gt ;
* & lt ; java version = " 1 . 4 . 0 " class = " java . beans . XMLDecoder " & gt ;
* & lt ; object class = " TestDuplicates $ A " & gt ;
* & lt ; void id = " TestDuplicates $ C0 " method = " createC " / & gt ;
* & lt ; void property = " x " & gt ;
* & lt ; void property = " x " & gt ;
* & lt ; object idref = " TestDuplicates $ C0 " / & gt ;
* & lt ; / void & gt ;
* & lt ; / void & gt ;
* & lt ; / object & gt ;
* & lt ; / java & gt ; < / pre >
*
* INVALID ARCHIVE ( WITHOUT FIX ) :
* & lt ; object class = " TestDuplicates $ A " & gt ;
* & lt ; void property = " x " & gt ;
* & lt ; void property = " x " & gt ;
* & lt ; void class = " TestDuplicates $ A " & gt ;
* & lt ; void property = " x " & gt ;
* & lt ; void property = " x " & gt ;
* & lt ; object idref = " TestDuplicates $ C0 " / & gt ;
* & lt ; / void & gt ;
* & lt ; / void & gt ;
* & lt ; void id = " TestDuplicates $ C0 " method = " createC " / & gt ;
* & lt ; / void & gt ;
* & lt ; object idref = " TestDuplicates $ C0 " / & gt ;
* & lt ; / void & gt ;
* & lt ; / void & gt ;
* & lt ; void id = " TestDuplicates $ C0 " method = " createC " / & gt ;
* & lt ; / object & gt ;
* & lt ; / java & gt ; < / 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);
}
}
}
Messung V0.5 in Prozent C=96 H=94 G=94
¤ Dauer der Verarbeitung: 0.9 Sekunden
(vorverarbeitet am 2026-06-10)
¤
*© Formatika GbR, Deutschland