Exception while uploading changes

[wiml@…]

What steps will reproduce the problem?

Attempting to upload changes. The upload fails; trying again causes the exception again. I don't know what object is causing the problem (there are 158 changed objects).

Saving the current dataset to an .osm file seems to have succeeded. Quitting and restarting

Invoking "Update modified data" causes a very similar exception to be thrown (also attached).

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

Repository Root: http://josm.openstreetmap.de/svn
Build-Date: 2011-02-08 02:31:36
Last Changed Author: bastiK
Revision: 3867
Repository UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
URL: http://josm.openstreetmap.de/svn/trunk
Last Changed Date: 2011-02-07 16:05:37 +0100 (Mon, 07 Feb 2011)
Last Changed Rev: 3867

Identification: JOSM/1.5 (3867 en)
Memory Usage: 371 MB / 1019 MB (83 MB allocated, but free)
Java version: 1.6.0_22, Apple Inc., Java HotSpot(TM) 64-Bit Server VM
Operating system: Mac OS X
Dataset consistency test: No problems found

Plugin: PicLayer (25219)
Plugin: dataimport (25192)
Plugin: graphview (25199)
Plugin: lakewalker (25192)
Plugin: measurement (25199)
Plugin: openstreetbugs (25199)
Plugin: routing (25199)
Plugin: turnrestrictions (25199)

java.lang.IllegalArgumentException: Parameter 'uid' > 0 expected. Got '0'.
	at org.openstreetmap.josm.data.osm.history.HistoryOsmPrimitive.ensurePositiveLong(HistoryOsmPrimitive.java:36)
	at org.openstreetmap.josm.data.osm.history.HistoryOsmPrimitive.<init>(HistoryOsmPrimitive.java:56)
	at org.openstreetmap.josm.data.osm.history.HistoryNode.<init>(HistoryNode.java:20)
	at org.openstreetmap.josm.gui.history.HistoryBrowserModel$HistoryPrimitiveBuilder.visit(HistoryBrowserModel.java:882)
	at org.openstreetmap.josm.data.osm.Node.visit(Node.java:136)
	at org.openstreetmap.josm.gui.history.HistoryBrowserModel$HistoryPrimitiveBuilder.build(HistoryBrowserModel.java:904)
	at org.openstreetmap.josm.gui.history.HistoryBrowserModel.primtivesAdded(HistoryBrowserModel.java:787)
	at org.openstreetmap.josm.data.osm.event.PrimitivesAddedEvent.fire(PrimitivesAddedEvent.java:25)
	at org.openstreetmap.josm.data.osm.DataSet.fireEventToListeners(DataSet.java:908)
	at org.openstreetmap.josm.data.osm.DataSet.endUpdate(DataSet.java:887)
	at org.openstreetmap.josm.data.osm.OsmPrimitive.writeUnlock(OsmPrimitive.java:357)
	at org.openstreetmap.josm.data.osm.OsmPrimitive.setOsmId(OsmPrimitive.java:469)
	at org.openstreetmap.josm.io.DiffResultProcessor.postProcess(DiffResultProcessor.java:126)
	at org.openstreetmap.josm.io.OsmApi.uploadDiff(OsmApi.java:435)
	at org.openstreetmap.josm.io.OsmServerWriter.uploadChangesInChunks(OsmServerWriter.java:163)
	at org.openstreetmap.josm.io.OsmServerWriter.uploadOsm(OsmServerWriter.java:205)
	at org.openstreetmap.josm.gui.io.UploadPrimitivesTask.realRun(UploadPrimitivesTask.java:236)
	at org.openstreetmap.josm.gui.PleaseWaitRunnable.doRealRun(PleaseWaitRunnable.java:83)
	at org.openstreetmap.josm.gui.PleaseWaitRunnable.run(PleaseWaitRunnable.java:129)
	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
	at java.lang.Thread.run(Thread.java:680

Repository Root: http://josm.openstreetmap.de/svn
Build-Date: 2011-02-08 02:31:36
Last Changed Author: bastiK
Revision: 3867
Repository UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
URL: http://josm.openstreetmap.de/svn/trunk
Last Changed Date: 2011-02-07 16:05:37 +0100 (Mon, 07 Feb 2011)
Last Changed Rev: 3867

Identification: JOSM/1.5 (3867 en)
Memory Usage: 371 MB / 1019 MB (87 MB allocated, but free)
Java version: 1.6.0_22, Apple Inc., Java HotSpot(TM) 64-Bit Server VM
Operating system: Mac OS X
Dataset consistency test: No problems found

Plugin: PicLayer (25219)
Plugin: dataimport (25192)
Plugin: graphview (25199)
Plugin: lakewalker (25192)
Plugin: measurement (25199)
Plugin: openstreetbugs (25199)
Plugin: routing (25199)
Plugin: turnrestrictions (25199)

java.lang.reflect.InvocationTargetException
	at java.awt.EventQueue.invokeAndWait(EventQueue.java:1034)
	at org.openstreetmap.josm.gui.PleaseWaitRunnable.doRealRun(PleaseWaitRunnable.java:88)
	at org.openstreetmap.josm.gui.PleaseWaitRunnable.run(PleaseWaitRunnable.java:129)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
	at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
	at java.util.concurrent.FutureTask.run(FutureTask.java:138)
	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
	at java.lang.Thread.run(Thread.java:680)
Caused by: java.lang.IllegalArgumentException: Parameter 'uid' > 0 expected. Got '0'.
	at org.openstreetmap.josm.data.osm.history.HistoryOsmPrimitive.ensurePositiveLong(HistoryOsmPrimitive.java:36)
	at org.openstreetmap.josm.data.osm.history.HistoryOsmPrimitive.<init>(HistoryOsmPrimitive.java:56)
	at org.openstreetmap.josm.data.osm.history.HistoryWay.<init>(HistoryWay.java:22)
	at org.openstreetmap.josm.gui.history.HistoryBrowserModel$HistoryPrimitiveBuilder.visit(HistoryBrowserModel.java:896)
	at org.openstreetmap.josm.data.osm.Way.visit(Way.java:135)
	at org.openstreetmap.josm.gui.history.HistoryBrowserModel$HistoryPrimitiveBuilder.build(HistoryBrowserModel.java:904)
	at org.openstreetmap.josm.gui.history.HistoryBrowserModel.dataChanged(HistoryBrowserModel.java:825)
	at org.openstreetmap.josm.data.osm.event.DataChangedEvent.fire(DataChangedEvent.java:26)
	at org.openstreetmap.josm.data.osm.DataSet.fireEventToListeners(DataSet.java:908)
	at org.openstreetmap.josm.data.osm.DataSet.endUpdate(DataSet.java:890)
	at org.openstreetmap.josm.data.osm.DataSetMerger.merge(DataSetMerger.java:398)
	at org.openstreetmap.josm.gui.layer.OsmDataLayer.mergeFrom(OsmDataLayer.java:301)
	at org.openstreetmap.josm.gui.io.UpdatePrimitivesTask$1.run(UpdatePrimitivesTask.java:88)
	at org.openstreetmap.josm.gui.io.UpdatePrimitivesTask.finish(UpdatePrimitivesTask.java:94)
	at org.openstreetmap.josm.gui.PleaseWaitRunnable$1.run(PleaseWaitRunnable.java:90)
	at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:199)
	at java.awt.EventQueue.dispatchEvent(EventQueue.java:633)
	at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:296)
	at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:211)
	at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:205)
	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:633)
	at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:296)
	at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:211)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:201)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:196)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:188)
	at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)