error by merge areas

[Luebeck]

Repository Root: ​http://josm.openstreetmap.de/svn
Build-Date: 2010-08-06 01:31:41
Last Changed Author: stoecker
Revision: 3418
Repository UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
URL: ​http://josm.openstreetmap.de/svn/trunk
Last Changed Date: 2010-08-05 18:31:22 +0200 (Thu, 05 Aug 2010)
Last Changed Rev: 3418

Identification: JOSM/1.5 (3418 de)
Memory Usage: 506 MB / 1016 MB (170 MB allocated, but free)
Java version: 1.6.0, Sun Microsystems Inc., Java HotSpot(TM) Client VM
Operating system: Windows Vista
Dataset consistency test: No problems found

Plugin: AddrInterpolation (21710)
Plugin: OpeningHoursEditor (${version.entry.commit.revision})
Plugin: PicLayer (22549)
Plugin: RoadSigns (22449)
Plugin: livegps (21706)
Plugin: openstreetbugs (22548)
Plugin: public_transport (22048)
Plugin: remotecontrol (22479)
Plugin: surveyor (21706)
Plugin: touchscreenhelper (21576)
Plugin: turnrestrictions (22477)
Plugin: undelete (22365)
Plugin: walkingpapers (22549)
Plugin: wayselector (21706)
Plugin: wmsplugin (22550)

java.lang.NullPointerException

at org.openstreetmap.josm.data.UndoRedoHandler.addNoRedraw(UndoRedoHandler.java:37)
at org.openstreetmap.josm.data.UndoRedoHandler.add(UndoRedoHandler.java:59)
at org.openstreetmap.josm.actions.JoinAreasAction.commitCommands(JoinAreasAction.java:444)
at org.openstreetmap.josm.actions.JoinAreasAction.joinAreas(JoinAreasAction.java:200)
at org.openstreetmap.josm.actions.JoinAreasAction.actionPerformed(JoinAreasAction.java:166)
at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.setPressed(Unknown Source)
at javax.swing.AbstractButton.doClick(Unknown Source)
at javax.swing.plaf.basic.BasicMenuItemUI.doClick(Unknown Source)
at javax.swing.plaf.basic.BasicMenuItemUI$Handler.mouseReleased(Unknown Source)
at java.awt.AWTEventMulticaster.mouseReleased(Unknown Source)
at java.awt.Component.processMouseEvent(Unknown Source)
at javax.swing.JComponent.processMouseEvent(Unknown Source)
at java.awt.Component.processEvent(Unknown Source)
at java.awt.Container.processEvent(Unknown Source)
at java.awt.Component.dispatchEventImpl(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Window.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(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)

[bastiK]

Closed as duplicate of #5179.