Exception during Warrant and/or OBlock testing

[bobjacobsen]

CI logs have started showing the following exception:

WARN  - Cleaning up frame "Text Label" (a class javax.swing.JFrame) in jmri.jmrit.display.PositionablePropertiesUtilTest. [main] jmri.util.JUnitUtil.resetWindows()
WARN  - Cleaning up frame "Create eNtry/eXit Warrant" (a class jmri.jmrit.logix.NXFrame) in jmri.jmrit.logix.NXFrameTest. [main] jmri.util.JUnitUtil.resetWindows()
ERROR - Error while on GUI thread [main] jmri.util.ThreadingUtil.runOnGUI()
java.lang.NullPointerException
    at jmri.jmrit.logix.OBlock.lambda$goingInactive$0(OBlock.java:888)
    at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:301)
    at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:756)
    at java.awt.EventQueue.access$500(EventQueue.java:97)
    at java.awt.EventQueue$3.run(EventQueue.java:709)
    at java.awt.EventQueue$3.run(EventQueue.java:703)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:80)
    at java.awt.EventQueue.dispatchEvent(EventQueue.java:726)
    at org.netbeans.jemmy.QueueTool$JemmyQueue.dispatchEvent(QueueTool.java:609)
    at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
    at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
    at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
    at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)
WARN  - testLearnWarrant(jmri.jmrit.logix.LearnWarrantTest) : run  1 failed, RetryRule repeats [main] util.junit.rules.RetryRule.evaluate()
checked total of 2394

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. JMRI is governed by a small group of maintainers which means not all opened issues may receive direct feedback.

[stale[bot]]

This issue has been automatically closed due to lack of activity. In an effort to reduce noise, please do not comment any further. Note that the maintainers may elect to reopen this issue at a later date if deemed necessary.