152 lines
4.6 KiB
Java
152 lines
4.6 KiB
Java
/*
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* Copyright (c) 2010, 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 6396844
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* @summary Tests memory leak for 20000 files
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* @author Sergey Malenkov
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* @run main/othervm/timeout=1000 -mx256m TwentyThousandTest
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*/
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import javax.swing.*;
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import java.awt.event.ActionEvent;
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import java.awt.event.ActionListener;
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import java.io.File;
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import java.io.FileWriter;
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public class TwentyThousandTest implements ActionListener, Runnable {
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private static final int FILES = 20000;
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private static final int ATTEMPTS = 100;
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private static final int INTERVAL = 100;
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private static final boolean ALWAYS_NEW_INSTANCE = false;
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private static final boolean UPDATE_UI_EACH_INTERVAL = true;
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private static final boolean AUTO_CLOSE_DIALOG = true;
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private static JFileChooser CHOOSER;
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private static String tmpDir;
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public static void main(String[] args) throws Exception {
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tmpDir = System.getProperty("java.io.tmpdir");
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if (tmpDir.length() == 0) { //'java.io.tmpdir' isn't guaranteed to be defined
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tmpDir = System.getProperty("user.home");
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}
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System.out.println("Temp directory: " + tmpDir);
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System.out.println("Creating " + FILES + " files");
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for (int i = 0; i < FILES; i++) {
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File file = getTempFile(i);
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FileWriter writer = new FileWriter(file);
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writer.write("File " + i);
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writer.close();
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}
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for (UIManager.LookAndFeelInfo laf : UIManager.getInstalledLookAndFeels()) {
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if (laf.getClassName().contains("Motif")) {
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continue;
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}
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UIManager.setLookAndFeel(laf.getClassName());
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System.out.println("Do " + ATTEMPTS + " attempts for " + laf.getClassName());
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for ( int i = 0; i < ATTEMPTS; i++ ) {
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System.out.print(i + " ");
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doAttempt();
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}
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System.out.println();
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CHOOSER = null;
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}
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System.out.println("Removing " + FILES + " files");
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for (int i = 0; i < FILES; i++) {
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getTempFile(i).delete();
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}
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System.out.println( "Test passed successfully" );
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}
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private static File getTempFile(int i) {
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return new File(tmpDir, "temp" + i + ".txt");
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}
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private static void doAttempt() throws Exception {
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SwingUtilities.invokeAndWait(new Runnable() {
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public void run() {
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if ( ALWAYS_NEW_INSTANCE || ( CHOOSER == null ) )
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CHOOSER = new JFileChooser(tmpDir);
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if ( UPDATE_UI_EACH_INTERVAL )
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CHOOSER.updateUI();
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if ( AUTO_CLOSE_DIALOG ) {
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Thread t = new Thread( new TwentyThousandTest( CHOOSER ) );
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t.start();
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CHOOSER.showOpenDialog( null );
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} else {
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CHOOSER.showOpenDialog( null );
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}
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}
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});
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// Allow to collect garbage by GC
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Thread.sleep(1000);
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System.gc();
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}
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private final JFileChooser chooser;
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TwentyThousandTest( JFileChooser chooser ) {
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this.chooser = chooser;
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}
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public void run() {
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while ( !this.chooser.isShowing() ) {
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try {
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Thread.sleep( 30 );
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} catch ( InterruptedException exception ) {
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exception.printStackTrace();
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}
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}
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Timer timer = new Timer( INTERVAL, this );
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timer.setRepeats( false );
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timer.start();
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}
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public void actionPerformed( ActionEvent event ) {
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this.chooser.cancelSelection();
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}
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}
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