0b09129fae
Reviewed-by: prr, trebari, azvegint
69 lines
2.2 KiB
Java
69 lines
2.2 KiB
Java
/*
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* Copyright (c) 2020, 2021, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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import java.awt.Frame;
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import java.awt.Robot;
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import java.util.concurrent.TimeUnit;
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/**
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* @test
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* @key headful
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* @bug 8196100
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* @summary Checks that Robot.waitForIdle() works if EDT is overloaded
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*/
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public final class InfiniteLoopException {
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public static void main(String[] args) throws Exception {
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Frame frame = new Frame();
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try {
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frame.setSize(300, 300);
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frame.setLocationRelativeTo(null);
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frame.setVisible(true);
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test(frame);
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frame.setVisible(false);
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} finally {
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frame.dispose();
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}
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}
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private static void test(Frame frame) throws Exception {
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Runnable repaint = () -> {
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while (frame.isDisplayable()) {
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frame.repaint();
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Thread.yield();
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}
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};
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new Thread(repaint).start();
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new Thread(repaint).start();
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new Thread(repaint).start();
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Robot robot = new Robot();
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long start = System.nanoTime();
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robot.waitForIdle();
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long time = TimeUnit.NANOSECONDS.toSeconds(System.nanoTime() - start);
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if (time > 20) {
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throw new RuntimeException("Too slow:" + time);
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}
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}
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}
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