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32bd080d
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dragonwell8_jdk
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体验新版 GitCode,发现更多精彩内容 >>
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32bd080d
编写于
11月 14, 2014
作者:
A
alexsch
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电子邮件补丁
差异文件
8064468: ownedWindowList access requires synchronization in Window.setAlwaysOnTop() method
Reviewed-by: serb, pchelko
上级
9b08436a
变更
2
隐藏空白更改
内联
并排
Showing
2 changed file
with
74 addition
and
1 deletion
+74
-1
src/share/classes/java/awt/Window.java
src/share/classes/java/awt/Window.java
+12
-1
test/java/awt/Window/AlwaysOnTop/SyncAlwaysOnTopFieldTest.java
...java/awt/Window/AlwaysOnTop/SyncAlwaysOnTopFieldTest.java
+62
-0
未找到文件。
src/share/classes/java/awt/Window.java
浏览文件 @
32bd080d
...
...
@@ -2247,7 +2247,18 @@ public class Window extends Container implements Accessible {
}
firePropertyChange
(
"alwaysOnTop"
,
oldAlwaysOnTop
,
alwaysOnTop
);
}
for
(
WeakReference
<
Window
>
ref
:
ownedWindowList
)
{
setOwnedWindowsAlwaysOnTop
(
alwaysOnTop
);
}
@SuppressWarnings
({
"rawtypes"
,
"unchecked"
})
private
void
setOwnedWindowsAlwaysOnTop
(
boolean
alwaysOnTop
)
{
WeakReference
<
Window
>[]
ownedWindowArray
;
synchronized
(
ownedWindowList
)
{
ownedWindowArray
=
new
WeakReference
[
ownedWindowList
.
size
()];
ownedWindowList
.
copyInto
(
ownedWindowArray
);
}
for
(
WeakReference
<
Window
>
ref
:
ownedWindowArray
)
{
Window
window
=
ref
.
get
();
if
(
window
!=
null
)
{
try
{
...
...
test/java/awt/Window/AlwaysOnTop/SyncAlwaysOnTopFieldTest.java
0 → 100644
浏览文件 @
32bd080d
/*
* Copyright (c) 2014, 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.awt.Window
;
/**
* @test
* @bug 8064468
* @author Alexander Scherbatiy
* @summary ownedWindowList access requires synchronization in
* Window.setAlwaysOnTop() method
* @run main SyncAlwaysOnTopFieldTest
*/
public
class
SyncAlwaysOnTopFieldTest
{
private
static
final
int
WINDOWS_COUNT
=
200
;
private
static
final
int
STEPS_COUNT
=
20
;
public
static
void
main
(
String
[]
args
)
throws
Exception
{
final
Window
rootWindow
=
createWindow
(
null
);
new
Thread
(()
->
{
for
(
int
i
=
0
;
i
<
WINDOWS_COUNT
;
i
++)
{
createWindow
(
rootWindow
);
}
}).
start
();
boolean
alwaysOnTop
=
true
;
for
(
int
i
=
0
;
i
<
STEPS_COUNT
;
i
++)
{
Thread
.
sleep
(
10
);
rootWindow
.
setAlwaysOnTop
(
alwaysOnTop
);
alwaysOnTop
=
!
alwaysOnTop
;
}
}
private
static
Window
createWindow
(
Window
parent
)
{
Window
window
=
new
Window
(
parent
);
window
.
setSize
(
200
,
200
);
window
.
setVisible
(
true
);
return
window
;
}
}
\ No newline at end of file
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