/*
* Copyright ( c ) 1999 , 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 4216997
* @ summary Cloning a subclass of LinkedList results in an object that isn ' t
* an instance of the subclass . The same applies to TreeSet and
* TreeMap .
*/
import java.util.LinkedList;
import java.util.TreeMap;
import java.util.TreeSet;
public class Clone {
public static void main(String[] args) {
LinkedList2 l = new LinkedList2();
LinkedList2 lClone = (LinkedList2) l.clone();
if (!(l.equals(lClone) && lClone.equals(l)))
throw new RuntimeException("LinkedList.clone() is broken 1." );
l.add("a" );
lClone = (LinkedList2) l.clone();
if (!(l.equals(lClone) && lClone.equals(l)))
throw new RuntimeException("LinkedList.clone() is broken 2." );
l.add("b" );
lClone = (LinkedList2) l.clone();
if (!(l.equals(lClone) && lClone.equals(l)))
throw new RuntimeException("LinkedList.clone() is broken 2." );
TreeSet2 s = new TreeSet2();
TreeSet2 sClone = (TreeSet2) s.clone();
if (!(s.equals(sClone) && sClone.equals(s)))
throw new RuntimeException("TreeSet.clone() is broken." );
s.add("a" );
sClone = (TreeSet2) s.clone();
if (!(s.equals(sClone) && sClone.equals(s)))
throw new RuntimeException("TreeSet.clone() is broken." );
s.add("b" );
sClone = (TreeSet2) s.clone();
if (!(s.equals(sClone) && sClone.equals(s)))
throw new RuntimeException("TreeSet.clone() is broken." );
TreeMap2 m = new TreeMap2();
TreeMap2 mClone = (TreeMap2) m.clone();
if (!(m.equals(mClone) && mClone.equals(m)))
throw new RuntimeException("TreeMap.clone() is broken." );
m.put("a" , "b" );
mClone = (TreeMap2) m.clone();
if (!(m.equals(mClone) && mClone.equals(m)))
throw new RuntimeException("TreeMap.clone() is broken." );
m.put("c" , "d" );
mClone = (TreeMap2) m.clone();
if (!(m.equals(mClone) && mClone.equals(m)))
throw new RuntimeException("TreeMap.clone() is broken." );
}
private static class LinkedList2 extends LinkedList {}
private static class TreeSet2 extends TreeSet {}
private static class TreeMap2 extends TreeMap {}
}
Messung V0.5 in Prozent C=92 H=94 G=92
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(vorverarbeitet am 2026-10-11)
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