109 lines
3.6 KiB
Java
109 lines
3.6 KiB
Java
/*
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* Copyright (c) 2009, 2017, 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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* @key headful
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* @bug 6713352
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* @summary Deadlock in JFileChooser with synchronized custom FileSystemView
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* @author Pavel Porvatov
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* @modules java.desktop/sun.awt.shell
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* @run main bug6713352
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*/
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import sun.awt.shell.ShellFolder;
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import javax.swing.*;
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import javax.swing.filechooser.FileSystemView;
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import java.io.File;
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import java.io.FileNotFoundException;
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import java.io.IOException;
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public class bug6713352 {
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public static void main(String[] args) throws Exception {
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SwingUtilities.invokeAndWait(new Runnable() {
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public void run() {
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String tempDir = System.getProperty("java.io.tmpdir");
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if (tempDir == null || !new File(tempDir).isDirectory()) {
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tempDir = System.getProperty("user.home");
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}
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MyFileSystemView systemView = new MyFileSystemView();
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synchronized (systemView) { // Get SystemView lock
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new JFileChooser(systemView);
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// Wait a little bit. BasicDirectoryModel will lock Invoker and stop on
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// the bug6713352.MyFileSystemView.getFiles() method
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try {
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Thread.sleep(5000);
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} catch (InterruptedException e) {
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throw new RuntimeException(e);
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}
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try {
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System.out.println("Try to get Invokers lock");
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ShellFolder.getShellFolder(new File(tempDir)).listFiles(true);
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} catch (FileNotFoundException e) {
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throw new RuntimeException(e);
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}
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}
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// To avoid RejectedExecutionException in BasicDirectoryModel wait a second
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try {
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Thread.sleep(1000);
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} catch (InterruptedException e) {
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throw new RuntimeException(e);
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}
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}
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});
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}
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private static class MyFileSystemView extends FileSystemView {
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public File createNewFolder(File containingDir) throws IOException {
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return null;
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}
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public File[] getFiles(File dir, boolean useFileHiding) {
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System.out.println("getFiles start");
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File[] result;
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synchronized (this) {
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result = super.getFiles(dir, useFileHiding);
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}
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System.out.println("getFiles finished");
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return result;
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}
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public synchronized Boolean isTraversable(File f) {
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return super.isTraversable(f);
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}
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}
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}
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