Exception with tracer

[bilbo]

I was using the tracer plugin and when I clicked to trace new building, this exception popped up.

When I dismissed the exception, I was able to continue using JOSM and even upload the edited data, so it is minor issue, but exception could mean something is wrong somewhere and next time this bug may have worse impact...

---

Build-Date: 2010-05-29 23:35:13
Revision: 3286
Is-Local-Build: true

Memory Usage: 494 MB / 494 MB (116 MB allocated, but free)
Java version: 1.6.0_20, Sun Microsystems Inc., Java HotSpot(TM) 64-Bit Server VM
Operating system: Linux

Dataset consistency test:
No problems found

Plugins: buildings_tools,graphview,measurement,multipoly,openstreetbugs,remotecontrol,reverter,terracer2,tracer,undelete,validator,wmsplugin
Plugin undelete (Version: 21186)
Plugin openstreetbugs (Version: 20696)
Plugin wmsplugin (Version: 21401)
Plugin tracer
Plugin reverter (Version: 21237)
Plugin remotecontrol (Version: 21433)
Plugin buildings_tools (Version: 21236)
Plugin validator (Version: 21440)
Plugin terracer2
Plugin graphview (Version: 20244)
Plugin multipoly (Version: 19456)
Plugin measurement (Version: 21307)

java.lang.NullPointerException

at javax.swing.BufferStrategyPaintManager.flushAccumulatedRegion(BufferStrategyPaintManager.java:399)
at javax.swing.BufferStrategyPaintManager.endPaint(BufferStrategyPaintManager.java:363)
at javax.swing.RepaintManager.endPaint(RepaintManager.java:1288)
at javax.swing.JComponent._paintImmediately(JComponent.java:5078)
at javax.swing.JComponent.paintImmediately(JComponent.java:4882)
at javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:808)
at javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:713)
at javax.swing.RepaintManager.seqPaintDirtyRegions(RepaintManager.java:693)
at javax.swing.SystemEventQueueUtilities$ComponentWorkRequest.run(SystemEventQueueUtilities.java:125)
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:597)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:178)
at java.awt.Dialog$1.run(Dialog.java:1046)
at java.awt.Dialog$3.run(Dialog.java:1098)
at java.security.AccessController.doPrivileged(Native Method)
at java.awt.Dialog.show(Dialog.java:1096)
at java.awt.Component.show(Component.java:1563)
at java.awt.Component.setVisible(Component.java:1515)
at java.awt.Window.setVisible(Window.java:842)
at java.awt.Dialog.setVisible(Dialog.java:986)
at org.openstreetmap.josm.gui.progress.PleaseWaitProgressMonitor$3.run(PleaseWaitProgressMonitor.java:83)
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:597)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)

[stoecker]

Looks much like a Java issue. Reopen when happening again.