114 lines
4.0 KiB
Java
114 lines
4.0 KiB
Java
/*
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* Copyright (c) 1998, 2024, 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.BorderLayout;
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import java.awt.Choice;
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import java.awt.Frame;
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import jdk.test.lib.Platform;
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/*
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* @test
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* @bug 4134619
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* @summary Tests that the EventDispatchThread doesn't deadlock with
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* user threads which are modifying a Choice component.
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* @library /java/awt/regtesthelpers /test/lib
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* @build PassFailJFrame jdk.test.lib.Platform
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* @run main/manual DeadlockTest
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*/
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public class DeadlockTest extends Thread {
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static volatile Choice choice1;
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static volatile Choice choice2;
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static volatile Choice choice3;
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static volatile Frame frame;
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static int itemCount = 0;
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private static final boolean isWindows = Platform.isWindows();
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private static final String INSTRUCTIONS = """
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Click on the top Choice component and hold the mouse still briefly.
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Then, without releasing the mouse button, move the cursor to a menu
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item and then again hold the mouse still briefly.
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%s
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Release the button and repeat this process.
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Verify that this does not cause a deadlock
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or crash within a reasonable amount of time.
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""".formatted(
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isWindows
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? "(menu can automatically collapse sometimes, this is ok)\n"
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: ""
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) ;
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public static void main(String[] args) throws Exception {
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DeadlockTest deadlockTest = new DeadlockTest();
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PassFailJFrame passFailJFrame = PassFailJFrame.builder()
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.title("DeadlockTest Instructions")
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.instructions(INSTRUCTIONS)
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.columns(45)
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.testUI(deadlockTest::createAndShowUI)
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.build();
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deadlockTest.start();
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passFailJFrame.awaitAndCheck();
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}
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public Frame createAndShowUI() {
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frame = new Frame("Check Choice");
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frame.setLayout(new BorderLayout());
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choice1 = new Choice();
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choice2 = new Choice();
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choice3 = new Choice();
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frame.add(choice1, BorderLayout.NORTH);
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frame.add(choice3, BorderLayout.CENTER);
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frame.add(choice2, BorderLayout.SOUTH);
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frame.pack();
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return frame;
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}
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public void run() {
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while (true) {
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if (choice1 != null && itemCount < 40) {
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choice1.add("I am Choice, yes I am : " + itemCount * itemCount);
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choice2.add("I am the same, yes I am : " + itemCount * itemCount);
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choice3.add("I am the same, yes I am : " + itemCount * itemCount);
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itemCount++;
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}
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if (itemCount >= 20 && choice1 != null &&
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choice1.getItemCount() > 0) {
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choice1.removeAll();
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choice2.removeAll();
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choice3.removeAll();
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itemCount = 0;
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}
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frame.validate();
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try {
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Thread.sleep(1000);
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} catch (Exception ignored) {}
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}
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}
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}
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