/*
* Copyright ( c ) 2020 , 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 .
*/
import java.awt.EventQueue;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.InputStream;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.Serializable;
import javax.swing.JSpinner;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;
import static javax.swing.UIManager.getInstalledLookAndFeels;
/**
* @ test
* @ bug 7124397 8256376
* @ key headful
* @ summary Verifies that JSpinner can be serialized / deserialized correctly .
* @ run main / othervm SerializationTest
* @ run main / othervm - Djava . awt . headless = true SerializationTest
*/
public final class SerializationTest {
public static void main(String[] argv) throws Exception {
for (UIManager.LookAndFeelInfo laf : getInstalledLookAndFeels()) {
EventQueue.invokeAndWait(() -> setLookAndFeel(laf));
EventQueue.invokeAndWait(() -> {
JSpinner spinner = new JSpinner();
JSpinner firstCopy = (JSpinner) createCopy(spinner);
JSpinner secondCopy = (JSpinner) createCopy(firstCopy);
});
}
}
private static Object createCopy(Serializable objectToCopy) {
try {
ByteArrayOutputStream baos = new ByteArrayOutputStream();
ObjectOutputStream oos = new ObjectOutputStream(baos);
oos.writeObject(objectToCopy);
InputStream bais = new ByteArrayInputStream(baos.toByteArray());
ObjectInputStream ois = new ObjectInputStream(bais);
return ois.readObject();
} catch (Exception e) {
throw new RuntimeException(e);
}
}
private static void setLookAndFeel(UIManager.LookAndFeelInfo laf) {
try {
UIManager.setLookAndFeel(laf.getClassName());
} catch (UnsupportedLookAndFeelException ignored) {
System.out.println("Unsupported LookAndFeel: " + laf.getClassName());
} catch (Exception e) {
throw new RuntimeException(e);
}
}
}
Messung V0.5 in Prozent C=91 H=87 G=88
¤ Dauer der Verarbeitung: 0.9 Sekunden
(vorverarbeitet am 2026-06-10)
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