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https://issues.apache.org/jira/browse/PIVOT-927?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13808460#comment-13808460
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Roger Whitcomb commented on PIVOT-927:
--------------------------------------
So, I just downloaded the Pivot sources from Maven Central, and the code there
matches what is in our tags\2.0.3 branch. And the pivot-wtk-2.0.3.jar from
Maven Central matches what is available from the pivot.apache.org site as the
current download.
You said you viewed the code of ApplicationContext .... how did you do that?
Did you disassemble or debug the code from the .jar file? Or how?
At any rate, I have some changes that I'd like to have you test, but I'm not
sure how to get you the changes.... I will check them into the current
branches/2.0.x code, which you can build, but they won't be available from
Maven yet ...
> Unexpected NPE
> --------------
>
> Key: PIVOT-927
> URL: https://issues.apache.org/jira/browse/PIVOT-927
> Project: Pivot
> Issue Type: Question
> Affects Versions: 2.0.3
> Reporter: Łukasz Hanusiak
> Assignee: Roger Whitcomb
> Fix For: 2.0.4, 2.1
>
>
> After upgrading to pivot 2.0.3 my application randomly becomes unresponsive
> after throwing NPE with following trace:
> java.lang.NullPointerException
> at
> org.apache.pivot.wtk.ApplicationContext$DisplayHost.processMouseMotionEvent(ApplicationContext.java:1132)
>
> at java.awt.Component.processEvent(Unknown Source)
> at
> org.apache.pivot.wtk.ApplicationContext$DisplayHost.processEvent(ApplicationContext.java:793)
>
> at java.awt.Component.dispatchEventImpl(Unknown Source)
> at java.awt.Component.dispatchEvent(Unknown Source)
> at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
> at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
> at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
> at java.awt.Container.dispatchEventImpl(Unknown Source)
> at java.awt.Window.dispatchEventImpl(Unknown Source)
> at java.awt.Component.dispatchEvent(Unknown Source)
> at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
> at java.awt.EventQueue.access$400(Unknown Source)
> at java.awt.EventQueue$2.run(Unknown Source)
> at java.awt.EventQueue$2.run(Unknown Source)
> at java.security.AccessController.doPrivileged(Native Method)
> at java.security.AccessControlContext$1.doIntersectionPrivilege(Unknown
> Source)
> at java.security.AccessControlContext$1.doIntersectionPrivilege(Unknown
> Source)
> at java.awt.EventQueue$3.run(Unknown Source)
> at java.awt.EventQueue$3.run(Unknown Source)
> at java.security.AccessController.doPrivileged(Native Method)
> at java.security.AccessControlContext$1.doIntersectionPrivilege(Unknown
> Source)
> at java.awt.EventQueue.dispatchEvent(Unknown Source)
> at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
> at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
> at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
> at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
> at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
> at java.awt.EventDispatchThread.run(Unknown Source)
> After mentioned exception occurs user is unable to use any element of UI.
> Only application restart helps solve this problem. Even more confusing is
> fact that problem sometimes occurs after few minutes and sometimes after few
> hours or even days.
> Can anybody give me some pointers how to workaround / fix this situation?
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