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/*
* Copyright (c) 1999, 2023, 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 4245382
@summary Tests that Button.setLabel(null) does not cause NPE in Java code or VM crash
@key headful
*/
import java.awt.Button;
import java.awt.EventQueue;
import java.awt.Frame;
public class ButtonNullLabelTest {
public static void main(String args[]) throws Exception {
EventQueue.invokeAndWait(() -> runTest());
}
static void runTest() {
// Native code test
Frame frame = new Frame("Test null in native");
Button button = new Button();
try {
button.setLabel(null);
System.out.println("Set to null - test native");
frame.add(button);
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
System.out.println("Test null in native **successful**");
} catch (NullPointerException npe) {
System.out.println("Test failed - test native");
throw new RuntimeException("Test failed - test native");
} finally {
frame.dispose();
}
// Peer code test
frame = new Frame("Test null in peer before show");
button = new Button();
try {
System.out.println("Set to null - test native before show");
frame.add(button);
frame.pack();
button.setLabel(null);
frame.setVisible(true);
System.out.println("Set null in peer before show **successful**");
} catch (NullPointerException npe) {
System.out.println("Test failed - test peer before show");
throw new RuntimeException("Test failed - test peer before show");
} finally {
frame.dispose();
}
// Peer code test
frame = new Frame("Test null in peer after show");
button = new Button();
try {
System.out.println("Set to null - test peer after show");
frame.add(button);
frame.pack();
frame.setVisible(true);
button.setLabel(null);
System.out.println("Test null in peer after show **successful**");
} catch (NullPointerException npe) {
System.out.println("Test failed - peer after show");
throw new RuntimeException("Test failed - peer after show");
} finally {
frame.dispose();
}
}
}
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