javax/swing/JTree/8003400/Test8003400.java fails intermittently in Ubuntu with an Exception:

----------System.out:(2/82)----------
javax.swing.plaf.metal.MetalLookAndFeel
javax.swing.plaf.nimbus.NimbusLookAndFeel
----------System.err:(25/1692)----------
java.lang.reflect.InvocationTargetException
        at java.desktop/java.awt.EventQueue.invokeAndWait(EventQueue.java:1312)
        at java.desktop/java.awt.EventQueue.invokeAndWait(EventQueue.java:1287)
        at java.desktop/javax.swing.SwingUtilities.invokeAndWait(SwingUtilities.java:1474)
        at Test8003400.main(Test8003400.java:133)
        at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104)
        at java.base/java.lang.reflect.Method.invoke(Method.java:565)
        at com.sun.javatest.regtest.agent.MainWrapper$MainTask.run(MainWrapper.java:138)
        at java.base/java.lang.Thread.run(Thread.java:1447)
Caused by: java.lang.Error: TEST FAILED: 41
        at Test8003400$2.run(Test8003400.java:143)
        at java.desktop/java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:313)
        at java.desktop/java.awt.EventQueue.dispatchEventImpl(EventQueue.java:723)
        at java.desktop/java.awt.EventQueue.dispatchEvent(EventQueue.java:702)
        at java.desktop/java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:203)
        at java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:124)
        at java.desktop/java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:113)
        at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:109)
        at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
        at java.desktop/java.awt.EventDispatchThread.run(EventDispatchThread.java:90)

JavaTest Message: Test threw exception: java.lang.reflect.InvocationTargetException