110 lines
3.8 KiB
Java
110 lines
3.8 KiB
Java
/*
|
|
* Copyright (c) 2018, 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.
|
|
*/
|
|
|
|
import java.lang.ref.WeakReference;
|
|
import java.util.ArrayList;
|
|
import javax.swing.border.TitledBorder;
|
|
import javax.swing.JFrame;
|
|
import javax.swing.JPanel;
|
|
import javax.swing.JLabel;
|
|
import javax.swing.SwingUtilities;
|
|
|
|
/**
|
|
* @test
|
|
* @key headful
|
|
* @bug 8204963
|
|
* @summary Verifies TitledBorder's memory leak
|
|
* @run main TestTitledBorderLeak
|
|
*/
|
|
|
|
public class TestTitledBorderLeak {
|
|
|
|
final static int TOTAL_TITLEDBORDER = 10;
|
|
final static int GC_ATTEMPTS = 10;
|
|
static ArrayList<WeakReference<TitledBorder>> weakRefArrTB =
|
|
new ArrayList(TOTAL_TITLEDBORDER);
|
|
|
|
public static void main(String[] args) throws Exception {
|
|
|
|
JFrame frame[] = new JFrame[TOTAL_TITLEDBORDER];
|
|
|
|
SwingUtilities.invokeAndWait(() -> {
|
|
for (int i = 0; i < TOTAL_TITLEDBORDER; i++) {
|
|
TitledBorder tb = new TitledBorder("");
|
|
weakRefArrTB.add(i, new WeakReference<TitledBorder>(tb));
|
|
JLabel label = new JLabel("TitledBorder");
|
|
label.setBorder(tb);
|
|
frame[i] = new JFrame("Borders");
|
|
JPanel panel = new JPanel();
|
|
panel.add(label);
|
|
frame[i].setContentPane(panel);
|
|
frame[i].setVisible(true);
|
|
|
|
}
|
|
});
|
|
if (TOTAL_TITLEDBORDER != weakRefArrTB.size()) {
|
|
System.err.println("TOTAL_TITLEDBORDER != weakRefArrTB.size()");
|
|
}
|
|
Thread.sleep(3000);
|
|
SwingUtilities.invokeAndWait(() -> {
|
|
for (int i = 0; i < TOTAL_TITLEDBORDER; i++) {
|
|
frame[i].dispose();
|
|
frame[i] = null;
|
|
}
|
|
});
|
|
Thread.sleep(3000);
|
|
attemptGCTitledBorder();
|
|
if (TOTAL_TITLEDBORDER != getCleanedUpTitledBorderCount()) {
|
|
throw new RuntimeException("Expected Total TitledBorder to be freed : " + TOTAL_TITLEDBORDER +
|
|
" Freed " + getCleanedUpTitledBorderCount());
|
|
}
|
|
System.out.println("OK");
|
|
}
|
|
|
|
private static void attemptGCTitledBorder() {
|
|
// Attempt gc GC_ATTEMPTS times
|
|
for (int i = 0; i < GC_ATTEMPTS; i++) {
|
|
System.gc();
|
|
System.runFinalization();
|
|
if (getCleanedUpTitledBorderCount() == TOTAL_TITLEDBORDER) {
|
|
break;
|
|
}
|
|
try {
|
|
Thread.sleep(500);
|
|
} catch (InterruptedException e) {
|
|
System.err.println("InterruptedException occurred during Thread.sleep()");
|
|
}
|
|
}
|
|
}
|
|
|
|
private static int getCleanedUpTitledBorderCount() {
|
|
int count = 0;
|
|
for (WeakReference<TitledBorder> ref : weakRefArrTB) {
|
|
if (ref.get() == null) {
|
|
count++;
|
|
}
|
|
}
|
|
return count;
|
|
}
|
|
}
|