russell@unturf.com
0a580b313d
Authors: russell@unturf.com · brackishbert@gmail.com · foxhop.net · TimeHexOn.com Patches, unit tests, benchmarks, whitepaper, and outreach briefs. Public domain — no copyright claimed. Use freely.
77 lines
2.8 KiB
Java
77 lines
2.8 KiB
Java
/*
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* Copyright (c) 2025, 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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/*
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@test
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@bug 8332271
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@summary tests that concurrent access to the clipboard does not crash the JVM
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@key headful
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@requires (os.family == "windows")
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@run main ConcurrentClipboardAccessTest
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*/
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import java.awt.Toolkit;
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import java.awt.datatransfer.Clipboard;
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import java.awt.datatransfer.DataFlavor;
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public class ConcurrentClipboardAccessTest {
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public static void main(String[] args) {
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Thread clipboardLoader1 = new Thread(new ClipboardLoader());
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clipboardLoader1.setDaemon(true);
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clipboardLoader1.start();
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Thread clipboardLoader2 = new Thread(new ClipboardLoader());
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clipboardLoader2.setDaemon(true);
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clipboardLoader2.start();
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long start = System.currentTimeMillis();
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while (true) {
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try {
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Thread.sleep(1000);
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} catch (InterruptedException ignored) {
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}
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long now = System.currentTimeMillis();
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if ((now - start) > (10L * 1000L)) {
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break;
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}
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}
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// Test is considered successful if the concurrent repeated reading
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// from clipboard succeeds for the allotted time and the JVM does not
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// crash.
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System.out.println("Shutdown normally");
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}
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public static class ClipboardLoader implements Runnable {
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@Override
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public void run() {
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final Clipboard systemClipboard = Toolkit.getDefaultToolkit().getSystemClipboard();
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while (true) {
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try {
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if (systemClipboard.isDataFlavorAvailable(DataFlavor.stringFlavor)) {
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systemClipboard.getData(DataFlavor.stringFlavor);
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}
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} catch (Exception ignored) {
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}
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}
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}
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}
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}
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