version 1847 crashes when a new relation is created

[aschoell@…]

tested on Mac OS and Linux. both crash

Manifest-Version: 1.0
Ant-Version: Apache Ant 1.7.0
Created-By: 14.1-b02-90 (Apple Inc.)
Main-class: JOSM
Main-Version: 1847 SVN
Main-Date: 2009-07-25T21:44:19.251363Z
Memory Usage: 62 MB / 508 MB (28 MB allocated, but free)
Java version: 1.6.0_15

Plugins: DirectUpload
dataimport
editgpx
graphview
openstreetbugs
remotecontrol
utilsplugin
validator
waydownloader
wmsplugin
Plugin DirectUpload Version: 16583
Plugin dataimport Version: 16382
Plugin editgpx Version: 16294
Plugin graphview Version: 16605
Plugin openstreetbugs Version: 16622
Plugin remotecontrol Version: 16624
Plugin utilsplugin Version: 16628
Plugin validator Version: 16629
Plugin waydownloader Version: 16590
Plugin wmsplugin Version: 16599

java.lang.IllegalArgumentException: path in TreePath must be non null.

at javax.swing.tree.TreePath.<init>(TreePath.java:75)
at org.openstreetmap.josm.gui.dialogs.relation.RelationTreeModel.fireRootReplacedEvent(RelationTreeModel.java:160)
at org.openstreetmap.josm.gui.dialogs.relation.RelationTreeModel.populate(RelationTreeModel.java:139)
at org.openstreetmap.josm.gui.dialogs.relation.ChildRelationBrowser.populate(ChildRelationBrowser.java:144)
at org.openstreetmap.josm.gui.dialogs.relation.ChildRelationBrowser.<init>(ChildRelationBrowser.java:135)
at org.openstreetmap.josm.gui.dialogs.relation.GenericRelationEditor.<init>(GenericRelationEditor.java:167)
at org.openstreetmap.josm.gui.dialogs.relation.RelationEditor.getEditor(RelationEditor.java:84)
at org.openstreetmap.josm.gui.dialogs.RelationListDialog$2.actionPerformed(RelationListDialog.java:91)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2028)
at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2351)
at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387)
at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:242)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:236)
at java.awt.AWTEventMulticaster.mouseReleased(AWTEventMulticaster.java:272)
at java.awt.Component.processMouseEvent(Component.java:6348)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3267)
at java.awt.Component.processEvent(Component.java:6113)
at java.awt.Container.processEvent(Container.java:2085)
at java.awt.Component.dispatchEventImpl(Component.java:4714)
at java.awt.Container.dispatchEventImpl(Container.java:2143)
at java.awt.Component.dispatchEvent(Component.java:4544)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4618)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4282)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4212)
at java.awt.Container.dispatchEventImpl(Container.java:2129)
at java.awt.Window.dispatchEventImpl(Window.java:2475)
at java.awt.Component.dispatchEvent(Component.java:4544)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:635)
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)

[fatbozz]

same as #3090

[fatbozz]

Closed as duplicate of #3090.