RFR: 8296083: javax/swing/JTree/6263446/bug6263446.java fails intermittently on a VM

[Prasanta Sadhukhan]

On Wed, 9 Nov 2022 15:03:08 GMT, lawrence.andrews <duke at openjdk.org> wrote:

>> Test intermittently fails in VM citing "Tree is not editing". Seems to be problem with mouse clicks not getting registered properly..
>> Similar test test/jdk/javax/swing/JTable/6263446/bug6263446.java is not affected, so made the test similar to it by using same safeguard using Robot.waitForIdle() and modifying clickpoint to tree cell midpoint.
>> 
>> Several iterations of the test pass in the OCI VM and all other physical platforms (link in JBS)
>
> test/jdk/javax/swing/JTree/6263446/bug6263446.java line 184:
> 
>> 182: 
>> 183:         frame.getContentPane().add(tree);
>> 184:         frame.setAlwaysOnTop(true);
> 
> Java doc says its better to check whether the platform supports this method before calling it 
> https://docs.oracle.com/javase/7/docs/api/java/awt/Window.html#setAlwaysOnTop(boolean)

it also says "If always-on-top mode isn't supported for this window or this window's toolkit does not support always-on-top windows, calling this method has no effect."
and I dont see we check for the support in any of the swing tests, so I guess we are ok..

-------------

PR: https://git.openjdk.org/jdk/pull/11057