105 lines
3.2 KiB
Java
105 lines
3.2 KiB
Java
|
/*
|
||
|
|
* Copyright 2008 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
|
||
|
|
* CA 95054 USA or visit www.sun.com if you need additional information or
|
||
|
|
* have any questions.
|
||
|
|
*/
|
||
|
|
|
||
|
|
/*
|
||
|
|
@test
|
||
|
|
@bug 6758673
|
||
|
|
@summary Tests that windows are removed from owner's child windows list
|
||
|
|
@author art: area=awt.toplevel
|
||
|
|
@run main OwnedWindowsLeak
|
||
|
|
*/
|
||
|
|
|
||
|
|
import java.awt.*;
|
||
|
|
import java.awt.event.*;
|
||
|
|
|
||
|
|
import java.lang.ref.*;
|
||
|
|
import java.lang.reflect.*;
|
||
|
|
|
||
|
|
import java.util.*;
|
||
|
|
|
||
|
|
public class OwnedWindowsLeak
|
||
|
|
{
|
||
|
|
public static void main(String[] args)
|
||
|
|
{
|
||
|
|
Frame owner = new Frame("F");
|
||
|
|
|
||
|
|
// First, create many windows
|
||
|
|
Vector<WeakReference<Window>> children =
|
||
|
|
new Vector<WeakReference<Window>>();
|
||
|
|
for (int i = 0; i < 1000; i++)
|
||
|
|
{
|
||
|
|
Window child = new Window(owner);
|
||
|
|
children.add(new WeakReference<Window>(child));
|
||
|
|
}
|
||
|
|
|
||
|
|
// Second, make sure all the memory is allocated
|
||
|
|
Vector garbage = new Vector();
|
||
|
|
while (true)
|
||
|
|
{
|
||
|
|
try
|
||
|
|
{
|
||
|
|
garbage.add(new byte[1000]);
|
||
|
|
}
|
||
|
|
catch (OutOfMemoryError e)
|
||
|
|
{
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Third, make sure all the weak references are null
|
||
|
|
for (WeakReference<Window> ref : children)
|
||
|
|
{
|
||
|
|
if (ref.get() != null)
|
||
|
|
{
|
||
|
|
throw new RuntimeException("Test FAILED: some of child windows are not GCed");
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Fourth, make sure owner's children list contains no elements
|
||
|
|
try
|
||
|
|
{
|
||
|
|
Field f = Window.class.getDeclaredField("ownedWindowList");
|
||
|
|
f.setAccessible(true);
|
||
|
|
Vector ownersChildren = (Vector)f.get(owner);
|
||
|
|
if (ownersChildren.size() > 0)
|
||
|
|
{
|
||
|
|
throw new RuntimeException("Test FAILED: some of the child windows are not removed from owner's children list");
|
||
|
|
}
|
||
|
|
}
|
||
|
|
catch (NoSuchFieldException z)
|
||
|
|
{
|
||
|
|
System.out.println("Test PASSED: no 'ownedWindowList' field in Window class");
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
catch (Exception z)
|
||
|
|
{
|
||
|
|
throw new RuntimeException("Test FAILED: unexpected exception", z);
|
||
|
|
}
|
||
|
|
|
||
|
|
// Test passed
|
||
|
|
System.out.println("Test PASSED");
|
||
|
|
|
||
|
|
owner.dispose();
|
||
|
|
}
|
||
|
|
}
|