<AWT Dev> [8] Request for review: 7166296 closed/java/awt/Frame/DisabledParentOfToplevel/DisabledParentOfToplevel.html failed since 1.8.0b36

Anthony Petrov anthony.petrov at oracle.com
Mon Apr 22 06:55:11 PDT 2013

On 04/22/13 17:42, Sergey Bylokhov wrote:
> On 22.04.2013 17:29, Anthony Petrov wrote:
>> Regarding the fix itself. Calling SunToolkit.getNativeContainer()
>> results in a call to Component.getNativeContainer(). And it is in this
>> method where the real bug resides. This method traverses the "parents"
>> tree w/o actually checking if it goes beyond its top-level window.
> Yes, and it is used in this context on windows.

Ah, I see the Component.getNativeContainer() checks whether the peer is 
lightweight or not. I believe it needs to be overridden in the Window 
class to return "this", though. Otherwise there's still a bug in this 

>> I suggest to fix the root cause of the bug in shared code rather than
>> tweak a platform implementation. Note that there's a method
>> Component.getContainer() designed specifically for cases where we want
>> to avoid traversing owner windows.
> But it does not take into account weight of the component. Peers version
> relies on heavyweight components only.

I don't quite understand this point. Please elaborate.

What I see is that we call SunToolkit.getNativeContainer() which isn't 
overridden in UNIXToolkit nor XToolkit, and thus results in a call to 
Toolkit.getNativeContainer(). The latter calls 
Component.getNativeContainer(). Which, w/o an override suggested above, 
produces an incorrect result and is the root cause of our bug, isn't it?

best regards,

>> --
>> best regards,
>> Anthony
>> On 04/22/13 16:06, Sergey Bylokhov wrote:
>>> Hello,
>>> Please review the fix for jdk 8.
>>> SetEnable method check status of all parent containers and windows(via
>>> getParent() in SunToolkit.getNativeContainer()). But only containers in
>>> the same window should be checked.
>>> The new method was added to return the peer of the nearest heavyweight
>>> container.
>>> Bug: http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=7166296
>>> Webrev can be found at:
>>> http://cr.openjdk.java.net/~serb/7166296/webrev.00

More information about the awt-dev mailing list