Can't undelete relations results into never ending cascading error messages

[anonymous]

I was just trying to un-delete a relation that somebody accidentally deleted the other day (relation: 452597). When I did that, nothing was restored in JOSM. Then, for the fun of it, I just hit Ctrl-A to see if I could somehow select it if it was really un-deleted, but wasn't shown. When I did that, JOSM threw up an error message.

Repository Root: http://josm.openstreetmap.de/svn
Build-Date: 2010-12-24 02:31:25
Last Changed Author: Upliner
Revision: 3740
Repository UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
URL: http://josm.openstreetmap.de/svn/trunk
Last Changed Date: 2010-12-23 15:38:34 +0100 (Thu, 23 Dec 2010)
Last Changed Rev: 3740

Identification: JOSM/1.5 (3740 en)
Memory Usage: 94 MB / 455 MB (33 MB allocated, but free)
Java version: 1.6.0_23, Sun Microsystems Inc., Java HotSpot(TM) 64-Bit Server VM
Operating system: Windows 7

Dataset consistency test:
[COMPLETE WITHOUT COORDINATES] {Node id=-1 version=0 MVT } is not incomplete but has null coordinates
Exception during dataset integrity test:
java.lang.NullPointerException
	at org.openstreetmap.josm.data.osm.DatasetConsistencyTest.searchNodes(DatasetConsistencyTest.java:82)
	at org.openstreetmap.josm.data.osm.DatasetConsistencyTest.runTest(DatasetConsistencyTest.java:143)
	at org.openstreetmap.josm.data.osm.DatasetConsistencyTest.runTests(DatasetConsistencyTest.java:157)
	at org.openstreetmap.josm.actions.ShowStatusReportAction.getReportHeader(ShowStatusReportAction.java:69)
	at org.openstreetmap.josm.tools.BugReportExceptionHandler.handleException(BugReportExceptionHandler.java:94)
	at org.openstreetmap.josm.tools.BugReportExceptionHandler.handle(BugReportExceptionHandler.java:43)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at java.awt.EventDispatchThread.handleException(Unknown Source)
	at java.awt.EventDispatchThread.processException(Unknown Source)
	at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
	at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
	at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
	at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
	at java.awt.EventDispatchThread.run(Unknown Source)


Plugin: Create_grid_of_ways (21706)
Plugin: OpeningHoursEditor (24290)
Plugin: RoadSigns (22850)
Plugin: alignways (24815)
Plugin: buildings_tools (23804)
Plugin: colorscheme (21563)
Plugin: download_along (22427)
Plugin: imageryadjust (24866)
Plugin: measurement (22547)
Plugin: michigan_left (22369)
Plugin: openstreetbugs (23747)
Plugin: openvisible (21706)
Plugin: osmarender (22765)
Plugin: restart (24396)
Plugin: reverter (23278)
Plugin: routing (23561)
Plugin: tageditor (21026)
Plugin: tagging-preset-tester (22454)
Plugin: terracer (24713)
Plugin: turnrestrictions (24125)
Plugin: undelete (22365)
Plugin: utilsplugin2 (24792)
Plugin: walkingpapers (22549)
Plugin: waydownloader (21706)
Plugin: wayselector (23103)

java.lang.NullPointerException
	at org.openstreetmap.josm.data.osm.visitor.paint.MapPaintVisitor.drawNode(MapPaintVisitor.java:114)
	at org.openstreetmap.josm.data.osm.visitor.paint.MapPaintVisitor.visitAll(MapPaintVisitor.java:660)
	at org.openstreetmap.josm.gui.layer.OsmDataLayer.paint(OsmDataLayer.java:268)
	at org.openstreetmap.josm.gui.MapView.paintLayer(MapView.java:448)
	at org.openstreetmap.josm.gui.MapView.paint(MapView.java:527)
	at javax.swing.JComponent.paintChildren(Unknown Source)
	at javax.swing.JSplitPane.paintChildren(Unknown Source)
	at javax.swing.JComponent.paint(Unknown Source)
	at javax.swing.JComponent.paintToOffscreen(Unknown Source)
	at javax.swing.RepaintManager$PaintManager.paintDoubleBuffered(Unknown Source)
	at javax.swing.RepaintManager$PaintManager.paint(Unknown Source)
	at javax.swing.RepaintManager.paint(Unknown Source)
	at javax.swing.JComponent._paintImmediately(Unknown Source)
	at javax.swing.JComponent.paintImmediately(Unknown Source)
	at javax.swing.RepaintManager.paintDirtyRegions(Unknown Source)
	at javax.swing.RepaintManager.paintDirtyRegions(Unknown Source)
	at javax.swing.RepaintManager.seqPaintDirtyRegions(Unknown Source)
	at javax.swing.SystemEventQueueUtilities$ComponentWorkRequest.run(Unknown Source)
	at java.awt.event.InvocationEvent.dispatch(Unknown Source)
	at java.awt.EventQueue.dispatchEvent(Unknown Source)
	at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
	at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
	at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
	at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
	at java.awt.EventDispatchThread.run(Unknown Source)

Then JOSM kept throwing up more error messages making it almost impossible to shut it down. And every time I looked at the error report, it was different from the last! So, I found a major cascading bug that could annoy the heck out of anybody because it never ends! (if it ends on your end, you got lucky) The only way I could get JOSM to close was to crash Java via the task manager, hence the "Blocker" tag.