NullPointerException

[anonymous]

What steps will reproduce the problem?

1. revert changeset (reverter plugin)

What is the expected result?

What happens instead?

Please provide any additional information below. Attach a screenshot if
possible.

Repository Root: http://josm.openstreetmap.de/svn
Build-Date: 2012-03-23 02:32:36
Last Changed Author: akks
Revision: 5114
Repository UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
URL: http://josm.openstreetmap.de/svn/trunk
Last Changed Date: 2012-03-22 08:37:48 +0100 (Thu, 22 Mar 2012)
Last Changed Rev: 5114

Identification: JOSM/1.5 (5114 de)
Memory Usage: 942 MB / 2709 MB (604 MB allocated, but free)
Java version: 1.6.0_18, Sun Microsystems Inc., OpenJDK 64-Bit Server VM
Operating system: Linux
Dataset consistency test: No problems found

Plugin: ImportImagePlugin (27906)
Plugin: PicLayer (27883)
Plugin: licensechange (27964)
Plugin: openstreetbugs (27852)
Plugin: reverter (28089)
Plugin: undelete (27852)
Plugin: utilsplugin2 (28045)

java.lang.NullPointerException
	at javax.swing.BufferStrategyPaintManager.flushAccumulatedRegion(BufferStrategyPaintManager.java:423)
	at javax.swing.BufferStrategyPaintManager.copyArea(BufferStrategyPaintManager.java:351)
	at javax.swing.RepaintManager.copyArea(RepaintManager.java:1160)
	at javax.swing.JViewport.blitDoubleBuffered(JViewport.java:1621)
	at javax.swing.JViewport.windowBlitPaint(JViewport.java:1590)
	at javax.swing.JViewport.setViewPosition(JViewport.java:1135)
	at javax.swing.plaf.basic.BasicScrollPaneUI$Handler.hsbStateChanged(BasicScrollPaneUI.java:1077)
	at javax.swing.plaf.basic.BasicScrollPaneUI$Handler.stateChanged(BasicScrollPaneUI.java:1028)
	at javax.swing.DefaultBoundedRangeModel.fireStateChanged(DefaultBoundedRangeModel.java:365)
	at javax.swing.DefaultBoundedRangeModel.setRangeProperties(DefaultBoundedRangeModel.java:302)
	at javax.swing.DefaultBoundedRangeModel.setValue(DefaultBoundedRangeModel.java:168)
	at javax.swing.JScrollBar.setValue(JScrollBar.java:463)
	at org.openstreetmap.josm.gui.dialogs.CommandStackDialog.buildTrees(CommandStackDialog.java:280)
	at org.openstreetmap.josm.gui.dialogs.CommandStackDialog.commandChanged(CommandStackDialog.java:301)
	at org.openstreetmap.josm.data.UndoRedoHandler.fireCommandsChanged(UndoRedoHandler.java:128)
	at org.openstreetmap.josm.data.UndoRedoHandler.afterAdd(UndoRedoHandler.java:48)
	at org.openstreetmap.josm.data.UndoRedoHandler.add(UndoRedoHandler.java:59)
	at reverter.RevertChangesetTask.realRun(RevertChangesetTask.java:83)
	at org.openstreetmap.josm.gui.PleaseWaitRunnable.doRealRun(PleaseWaitRunnable.java:82)
	at org.openstreetmap.josm.gui.PleaseWaitRunnable.run(PleaseWaitRunnable.java:145)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
	at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
	at java.util.concurrent.FutureTask.run(FutureTask.java:166)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
	at java.lang.Thread.run(Thread.java:636

[skyper]

Please attach full error log and describe step by step what you did.

Which changeset did you try to revert ? Did you download data before reverting ?

Thanks

[anonymous]

Replying to skyper:

Please attach full error log

Where can I find it?
I definitely did not delete anything, I double-checked this.
I just clicked on the link provided by the error prompt.

and describe step by step what you did.

I entered the changeset id, after some time, JOSM asked me to download additional data, I agreed, a few seconds later, the error occurred.

Which changeset did you try to revert ?

I can't remember.

Did you download data before reverting ?

Yes.

[skyper]

Replying to anonymous:

Replying to skyper:

Please attach full error log

Where can I find it?

You can run josm from a terminal !

I definitely did not delete anything, I double-checked this.
I just clicked on the link provided by the error prompt.

Please fill an extra ticket for this.

and describe step by step what you did.

I entered the changeset id, after some time, JOSM asked me to download additional data, I agreed, a few seconds later, the error occurred.

Which changeset did you try to revert ?

I can't remember.

That's sad. Next time please submit all important information and if possible a small sample file.
Thanks.