/*
* Copyright ( c ) 1998 , 2019 , 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 4094892
@ summary Verify that an object is not validated more than once during deserialization .
*/
import java.io.*;
import java.util.Date;
public class Validate {
public static void main(String[] args) throws Exception {
try {
// Write class out
ByteArrayOutputStream baos = new ByteArrayOutputStream();
ObjectOutput out = new ObjectOutputStream(baos);
Class1 c1 = new Class1(11 , 22 );
out.writeObject(c1);
out.writeObject(new Class1(22 ,33 ));
out.writeObject(new Date());
out.writeObject(new Date());
out.writeObject(new Date());
out.writeObject(new Date());
out.flush();
out.close();
// Read it back
ByteArrayInputStream bais =
new ByteArrayInputStream(baos.toByteArray());
ObjectInputStream in = new ObjectInputStream(bais);
Class1 cc1 = (Class1) in.readObject();
Class1 cc2 = (Class1) in.readObject();
System.out.println("date: " + in.readObject());
System.out.println("date: " + in.readObject());
System.out.println("date: " + in.readObject());
System.out.println("date: " + in.readObject());
in.close();
System.out.println(cc1.a + " " + cc1.b);
System.out.println(cc2.a + " " + cc2.b);
} catch (IOException e) {
e.printStackTrace();
throw e;
} catch (ClassNotFoundException e) {
e.printStackTrace();
throw e;
}
}
}
class Class1 implements Serializable, ObjectInputValidation {
private static final long serialVersionUID = 1 L;
int a, b;
transient int validates;
public Class1(int aa, int bb) {
a = aa;
b = bb;
}
public void validateObject() throws InvalidObjectException {
if (validates > 0 )
throw new Error("Implementation error: Re-validating object " + this .toString());
validates++;
System.out.println("Validating " + this .toString());
if (a > b) {
throw new InvalidObjectException("Fields cannot be negative" );
}
}
private void readObject(ObjectInputStream in)
throws IOException, ClassNotFoundException {
in.registerValidation(this , 1 );
in.defaultReadObject();
}
}
Messung V0.5 in Prozent C=93 H=90 G=91
¤ Dauer der Verarbeitung: 0.10 Sekunden
(vorverarbeitet am 2026-06-10)
¤
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