/*
* Copyright ( c ) 2020 , 2021 , 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 .
*
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*/
import java.awt.Frame;
import java.awt.Robot;
import java.util.concurrent.TimeUnit;
/**
* @ test
* @ key headful
* @ bug 8196100
* @ summary Checks that Robot . waitForIdle ( ) works if EDT is overloaded
*/
public final class InfiniteLoopException {
public static void main(String[] args) throws Exception {
Frame frame = new Frame();
try {
frame.setSize(300 , 300 );
frame.setLocationRelativeTo(null );
frame.setVisible(true );
test(frame);
frame.setVisible(false );
} finally {
frame.dispose();
}
}
private static void test(Frame frame) throws Exception {
Runnable repaint = () -> {
while (frame.isDisplayable()) {
frame.repaint();
Thread .yield();
}
};
new Thread (repaint).start();
new Thread (repaint).start();
new Thread (repaint).start();
Robot robot = new Robot();
long start = System.nanoTime();
robot.waitForIdle();
long time = TimeUnit.NANOSECONDS.toSeconds(System.nanoTime() - start);
if (time > 20 ) {
throw new RuntimeException("Too slow:" + time);
}
}
}
Messung V0.5 in Prozent C=98 H=59 G=80
¤ Dauer der Verarbeitung: 0.12 Sekunden
(vorverarbeitet am 2026-10-11)
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