jdk/test/java/io/Serializable/noSuchFieldClarification/NoSuchFieldClarification.java
/*
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* 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.
*
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*/
/* @test
* @bug 6323008
* @summary this test verifies that exception from GetField.get method
* will be a more comprehensible
*
* @author Andrey Ozerov
*
*/
import java.io.*;
class TwoDPoint implements Serializable {
private double radius;
private double angle;
private static final ObjectStreamField[] serialPersistentFields = {
new ObjectStreamField("x", double.class),
new ObjectStreamField("y", double.class),
};
public TwoDPoint(double x, double y) {
this.radius = Math.sqrt(x*x+y*y);
this.angle = Math.atan2(y, x);
}
public double getX() {
return radius * Math.cos(angle);
}
public double getY() {
return radius * Math.sin(angle);
}
public String toString() {
return "[TwoDPoint:x=" + this.getX() + ", y=" + this.getY() +"]";
}
private void writeObject(ObjectOutputStream out) throws IOException {
ObjectOutputStream.PutField fields = out.putFields();
fields.put("x", radius * Math.cos(angle));
fields.put("y", radius * Math.sin(angle));
out.writeFields();
}
private void readObject(ObjectInputStream in)
throws ClassNotFoundException, IOException
{
ObjectInputStream.GetField fields = in.readFields();
double x = fields.get("x", 0);
double y = fields.get("y", 0.0);
radius = Math.sqrt(x*x + y*y);
angle = Math.atan2(y, x);
}
}
public class NoSuchFieldClarification {
private static final String SUBSTRING1 = "x";
private static final String SUBSTRING2 = int.class.toString();
public static void main(String[] args) throws IOException,
ClassNotFoundException
{
TwoDPoint point = new TwoDPoint(7, 67);
ByteArrayOutputStream bout = new ByteArrayOutputStream();
ObjectOutputStream oout = new ObjectOutputStream(bout);
oout.writeObject(point);
oout.close();
byte[] ser = bout.toByteArray();
ByteArrayInputStream bin = new ByteArrayInputStream(ser);
ObjectInputStream oin = new ObjectInputStream(bin);
try {
point = (TwoDPoint) oin.readObject();
throw new Error();
} catch(IllegalArgumentException exc) {
String msg = exc.getMessage();
System.err.println("\nOriginal message : " + msg);
if (msg.trim().toLowerCase().lastIndexOf(SUBSTRING1) > 0 &&
msg.trim().toLowerCase().lastIndexOf(SUBSTRING2) > 0)
{
System.err.println("\nTEST PASSED");
} else {
throw new Error();
}
}
}
}