/*
* Copyright ( c ) 2000 , 2010 , 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 .
*/
/*
* @ bug 4311991
* @ summary Test ObjectOutputStream . writeUnshared / readUnshared functionality .
*/
import java.io.*;
class Bar implements Serializable {
private static final long serialVersionUID = 0 L;
private static final ObjectStreamField[] serialPersistentFields =
new ObjectStreamField[] {
new ObjectStreamField("obj" , Object.class , true )
};
Object obj;
Bar(Object obj) {
this .obj = obj;
}
}
public class Read {
public static void main(String[] args) throws Exception {
String str = "foo" ;
ByteArrayOutputStream bout = new ByteArrayOutputStream();
ObjectOutputStream oout = new ObjectOutputStream(bout);
oout.writeObject(str);
oout.writeObject(str);
oout.close();
byte [] buf = bout.toByteArray();
ByteArrayInputStream bin = new ByteArrayInputStream(buf);
ObjectInputStream oin = new ObjectInputStream(bin);
oin.readUnshared();
try {
oin.readObject();
throw new Error();
} catch (ObjectStreamException ex) {
}
bin = new ByteArrayInputStream(buf);
oin = new ObjectInputStream(bin);
oin.readUnshared();
try {
oin.readUnshared();
throw new Error();
} catch (ObjectStreamException ex) {
}
bin = new ByteArrayInputStream(buf);
oin = new ObjectInputStream(bin);
oin.readObject();
try {
oin.readUnshared();
throw new Error();
} catch (ObjectStreamException ex) {
}
// read in objects written by Write.main()
FileInputStream in = new FileInputStream("tmp.ser" );
try {
oin = new ObjectInputStream(in);
oin.readObject();
try {
oin.readObject();
throw new Error();
} catch (ObjectStreamException ex) {
}
} finally {
in.close();
}
in = new FileInputStream("tmp.ser" );
try {
oin = new ObjectInputStream(in);
oin.readObject();
try {
oin.readUnshared();
throw new Error();
} catch (ObjectStreamException ex) {
}
} finally {
in.close();
}
}
}
Messung V0.5 in Prozent C=91 H=84 G=87
¤ Dauer der Verarbeitung: 0.11 Sekunden
(vorverarbeitet am 2026-06-10)
¤
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