| /* |
| * Copyright (c) 2009, 2015, 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. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* @test %W% %E% |
| @bug 6798062 |
| @summary Memory Leak on using getFiles of FileSystemView |
| @author Pavel Porvatov |
| @modules java.desktop/sun.awt |
| java.desktop/sun.awt.shell |
| @run applet/manual=done bug6798062.html |
| */ |
| |
| import sun.awt.OSInfo; |
| import sun.awt.shell.ShellFolder; |
| |
| import javax.swing.*; |
| import java.awt.event.ActionEvent; |
| import java.awt.event.ActionListener; |
| import java.awt.*; |
| import java.io.File; |
| import java.io.FileNotFoundException; |
| |
| public class bug6798062 extends JApplet { |
| |
| private final JSlider slider = new JSlider(0, 100); |
| |
| private final JTextField tfLink = new JTextField(); |
| |
| private final JButton btnStart = new JButton("Start"); |
| |
| private final JButton btnStop = new JButton("Stop"); |
| |
| private final JButton btnGC = new JButton("Run System.gc()"); |
| |
| private ShellFolder folder; |
| |
| private Thread thread; |
| |
| public static void main(String[] args) { |
| JFrame frame = new JFrame("bug6798062"); |
| |
| frame.setSize(400, 300); |
| frame.setLocationRelativeTo(null); |
| frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); |
| frame.add(new bug6798062().initialize()); |
| |
| frame.setVisible(true); |
| } |
| |
| public void init() { |
| add(initialize()); |
| } |
| |
| private JComponent initialize() { |
| if (OSInfo.getOSType() != OSInfo.OSType.WINDOWS) { |
| return new JLabel("The test is suitable only for Windows"); |
| } |
| |
| String tempDir = System.getProperty("java.io.tmpdir"); |
| |
| if (tempDir.length() == 0) { // 'java.io.tmpdir' isn't guaranteed to be defined |
| tempDir = System.getProperty("user.home"); |
| } |
| |
| System.out.println("Temp directory: " + tempDir); |
| |
| try { |
| folder = ShellFolder.getShellFolder(new File(tempDir)); |
| } catch (FileNotFoundException e) { |
| fail("Directory " + tempDir + " not found"); |
| } |
| |
| slider.setMajorTickSpacing(10); |
| slider.setPaintTicks(true); |
| slider.setPaintLabels(true); |
| slider.setSnapToTicks(true); |
| slider.setValue(10); |
| |
| btnStart.addActionListener(new ActionListener() { |
| public void actionPerformed(ActionEvent e) { |
| setEnabledState(false); |
| |
| thread = new MyThread(slider.getValue(), tfLink.getText()); |
| thread.start(); |
| } |
| }); |
| |
| btnStop.setEnabled(false); |
| |
| btnStop.addActionListener(new ActionListener() { |
| public void actionPerformed(ActionEvent e) { |
| thread.interrupt(); |
| thread = null; |
| |
| setEnabledState(true); |
| } |
| }); |
| |
| btnGC.addActionListener(new ActionListener() { |
| public void actionPerformed(ActionEvent e) { |
| System.gc(); |
| } |
| }); |
| |
| setEnabledState(true); |
| |
| JPanel pnButtons = new JPanel(); |
| |
| pnButtons.setLayout(new BoxLayout(pnButtons, BoxLayout.X_AXIS)); |
| |
| pnButtons.add(btnStart); |
| pnButtons.add(btnStop); |
| pnButtons.add(btnGC); |
| |
| tfLink.setMaximumSize(new Dimension(300, 20)); |
| |
| JPanel pnContent = new JPanel(); |
| |
| pnContent.setLayout(new BoxLayout(pnContent, BoxLayout.Y_AXIS)); |
| pnContent.add(new JLabel("Delay between listFiles() invocation (ms):")); |
| pnContent.add(slider); |
| pnContent.add(new JLabel("Provide link here:")); |
| pnContent.add(tfLink); |
| pnContent.add(pnButtons); |
| |
| return pnContent; |
| } |
| |
| private void setEnabledState(boolean enabled) { |
| slider.setEnabled(enabled); |
| btnStart.setEnabled(enabled); |
| btnStop.setEnabled(!enabled); |
| } |
| |
| private static void fail(String msg) { |
| throw new RuntimeException(msg); |
| } |
| |
| private class MyThread extends Thread { |
| private final int delay; |
| |
| private final ShellFolder link; |
| |
| private MyThread(int delay, String link) { |
| this.delay = delay; |
| |
| ShellFolder linkFolder; |
| |
| try { |
| linkFolder = ShellFolder.getShellFolder(new File(link)); |
| } catch (FileNotFoundException e) { |
| e.printStackTrace(); |
| |
| linkFolder = null; |
| } |
| |
| this.link = linkFolder; |
| } |
| |
| public void run() { |
| while (!isInterrupted()) { |
| folder.listFiles(); |
| if (link != null) { |
| try { |
| link.getLinkLocation(); |
| } catch (FileNotFoundException e) { |
| e.printStackTrace(); |
| } |
| } |
| |
| if (delay > 0) { |
| try { |
| Thread.sleep(delay); |
| } catch (InterruptedException e1) { |
| // The thread was interrupted |
| return; |
| } |
| } |
| } |
| } |
| } |
| } |