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/*
* Copyright (c) 2012, 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
* @key headful
* @bug 6396844
* @summary Tests memory leak for 20000 files
* @author Sergey Malenkov
* @library ../../regtesthelpers
* @modules java.desktop/sun.java2d
* @build Util
* @run main/othervm/timeout=1000 -mx128m TwentyThousandTest
*/
import sun.java2d.Disposer;
import sun.java2d.DisposerRecord;
import javax.swing.*;
import java.awt.event.HierarchyEvent;
import java.awt.event.HierarchyListener;
import java.io.File;
import java.io.FileWriter;
public class TwentyThousandTest {
private static final int FILES = 20000;
private static final int ATTEMPTS = 20;
private static final int INTERVAL = 100;
private static String tmpDir;
private static volatile boolean disposerComplete;
public static void main(String[] args) throws Exception {
tmpDir = System.getProperty("java.io.tmpdir");
if (tmpDir.length() == 0) { //'java.io.tmpdir' isn't guaranteed to be defined
tmpDir = System.getProperty("user.home");
}
System.out.println("Temp directory: " + tmpDir);
System.out.println("Creating " + FILES + " files");
for (int i = 0; i < FILES; i++) {
File file = getTempFile(i);
FileWriter writer = new FileWriter(file);
writer.write("File " + i);
writer.close();
}
for (UIManager.LookAndFeelInfo laf : UIManager.getInstalledLookAndFeels()) {
if (laf.getClassName().contains("Motif")) {
continue;
}
UIManager.setLookAndFeel(laf.getClassName());
System.out.println("Do " + ATTEMPTS + " attempts for " + laf.getClassName());
for (int i = 0; i < ATTEMPTS; i++) {
System.out.print(i + " ");
doAttempt();
}
System.out.println();
}
System.out.println("Removing " + FILES + " files");
for (int i = 0; i < FILES; i++) {
getTempFile(i).delete();
}
System.out.println("Test passed successfully");
}
private static File getTempFile(int i) {
return new File(tmpDir, "temp" + i + ".txt");
}
private static void doAttempt() throws Exception {
SwingUtilities.invokeAndWait(new Runnable() {
public void run() {
final JFileChooser chooser = new JFileChooser(tmpDir);
chooser.updateUI();
// Postpone JFileChooser closing until it becomes visible
chooser.addHierarchyListener(new HierarchyListener() {
@Override
public void hierarchyChanged(HierarchyEvent e) {
if ((e.getChangeFlags() & HierarchyEvent.SHOWING_CHANGED) != 0) {
if (chooser.isShowing()) {
Thread thread = new Thread(new Runnable() {
public void run() {
try {
Thread.sleep(INTERVAL);
// Close JFileChooser
SwingUtilities.invokeLater(new Runnable() {
public void run() {
chooser.cancelSelection();
}
});
} catch (InterruptedException e) {
throw new RuntimeException(e);
}
}
});
thread.start();
}
}
}
});
chooser.showOpenDialog(null);
}
});
DisposerRecord disposerRecord = new DisposerRecord() {
public void dispose() {
disposerComplete = true;
}
};
disposerComplete = false;
Disposer.addRecord(new Object(), disposerRecord);
while (!disposerComplete) {
Util.generateOOME();
}
}
}
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