<AWT Dev> [10] RFR JDK-8190456: sanity/client/SwingSet/src/ComboBoxDemoTest.java failed with NPE from java.awt.EventQueue.getCurrentEventImpl()

Muneer Kolarkunnu abdul.kolarkunnu at oracle.com
Wed Nov 1 08:33:51 UTC 2017

Hi All,


Please review fix for the below bug:


Bug: https://bugs.openjdk.java.net/browse/JDK-8190456


Webrev: http://cr.openjdk.java.net/~akolarkunnu/8190456/webrev.00/


This issue observed during SBR(Same Binary Run) execution of client sanity tests. Same exception observed from test case sanity/client/SwingSet/src/DialogDemoTest.java also. 
It is a random failure, observed 2 times in 1000 iterations.

In ComboBoxDemoTest, it is happening while changing the selection on a combo box.

In DialogDemoTest, it is happening during button press.


Fix: As currentEvent is a WeakReference, added null check for dispatchThread use case also, similar to fxAppThreadIsDispatchThread use case.



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