<AWT Dev> Missing doPrivileged() in Dialog.show()

[Artem Ananiev]

On 8/17/2011 12:54 PM, Roman Kennke wrote:
> Hi Artem,
>
>> it really looks like a bug. I will file it shortly.

Here is the bug ID: 7080109.

> Cool. I will prepare a patch in the meantime, and file it in bugzilla.

Thanks,

Artem

> Roman
>
>>
>> Thanks,
>>
>> Artem
>>
>> On 8/16/2011 11:52 PM, Roman Kennke wrote:
>>> Hi all,
>>>
>>> when running an app with security manager (I am talking about the
>>> ubercool Cacio-Web project [1]), I get the attached exception when
>>> trying to open a modal dialog. I am wondering if the following code in
>>> Dialog.show() shouldn't be wrapped in a doPrivileged() to enable the
>>> secondary event loop:
>>>
>>>                       try {
>>>                           EventQueue eventQueue =
>>> Toolkit.getDefaultToolkit().getSystemEventQueue();
>>>                           secondaryLoop =
>>> eventQueue.createSecondaryLoop(cond, modalFilter, 0);
>>>                           if (!secondaryLoop.enter()) {
>>>                               secondaryLoop = null;
>>>                           }
>>>                       } finally {
>>>                           modalityPopped();
>>>                       }
>>>
>>>
>>> That is because getSystemEventQueue() is protected by the security
>>> manager, and we probably don't want to bother calling code with this
>>> implementation detail.
>>>
>>>
>>> Any thoughts?
>>>
>>> [1] http://jroller.com/neugens/entry/java_on_ipad_part_ii
>>>
>>>
>>>
>>> Exception in thread "AWT-EventQueue-1"
>>> java.security.AccessControlException: access denied
>>> ("java.awt.AWTPermission" "accessEventQueue")
>>> 	at
>>> java.security.AccessControlContext.checkPermission(AccessControlContext.java:366)
>>> 	at
>>> java.security.AccessController.checkPermission(AccessController.java:555)
>>> 	at java.lang.SecurityManager.checkPermission(SecurityManager.java:549)
>>> 	at
>>> java.lang.SecurityManager.checkAwtEventQueueAccess(SecurityManager.java:1415)
>>> 	at java.awt.Toolkit.getSystemEventQueue(Toolkit.java:1730)
>>> 	at java.awt.Dialog.show(Dialog.java:1070)
>>> 	at javax.swing.ColorChooserDialog.show(JColorChooser.java:720)
>>> 	at ColorChooserDemo$1.actionPerformed(ColorChooserDemo.java:131)
>>> 	at
>>> javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2018)
>>> 	at javax.swing.AbstractButton
>>> $Handler.actionPerformed(AbstractButton.java:2341)
>>> 	at
>>> javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:402)
>>> 	at
>>> javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259)
>>> 	at
>>> javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:252)
>>> 	at java.awt.Component.processMouseEvent(Component.java:6503)
>>> 	at javax.swing.JComponent.processMouseEvent(JComponent.java:3321)
>>> 	at java.awt.Component.processEvent(Component.java:6268)
>>> 	at java.awt.Container.processEvent(Container.java:2213)
>>> 	at java.awt.Component.dispatchEventImpl(Component.java:4859)
>>> 	at java.awt.Container.dispatchEventImpl(Container.java:2271)
>>> 	at java.awt.Component.dispatchEvent(Component.java:4685)
>>> 	at
>>> java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4816)
>>> 	at
>>> java.awt.LightweightDispatcher.processMouseEvent(Container.java:4476)
>>> 	at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4406)
>>> 	at java.awt.Container.dispatchEventImpl(Container.java:2257)
>>> 	at java.awt.Window.dispatchEventImpl(Window.java:2713)
>>> 	at java.awt.Component.dispatchEvent(Component.java:4685)
>>> 	at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:707)
>>> 	at java.awt.EventQueue.access$000(EventQueue.java:101)
>>> 	at java.awt.EventQueue$3.run(EventQueue.java:666)
>>> 	at java.awt.EventQueue$3.run(EventQueue.java:664)
>>> 	at java.security.AccessController.doPrivileged(Native Method)
>>> 	at java.security.ProtectionDomain
>>> $1.doIntersectionPrivilege(ProtectionDomain.java:76)
>>> 	at java.security.ProtectionDomain
>>> $1.doIntersectionPrivilege(ProtectionDomain.java:87)
>>> 	at java.awt.EventQueue$4.run(EventQueue.java:680)
>>> 	at java.awt.EventQueue$4.run(EventQueue.java:678)
>>> 	at java.security.AccessController.doPrivileged(Native Method)
>>> 	at java.security.ProtectionDomain
>>> $1.doIntersectionPrivilege(ProtectionDomain.java:76)
>>> 	at java.awt.EventQueue.dispatchEvent(EventQueue.java:677)
>>> 	at
>>> java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:211)
>>> 	at
>>> java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:128)
>>>
>>>
>>
>
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