Crash while adding a relation

[anonymous]

What steps will reproduce the problem?

1. Create new relation
2. Add nodes and a path
3. Click "Add" to add a new key:value to the relation
4. Realize that there's already a blank one, and immediately hit the "Delete" button on the screen
5. Boom.

What is the expected result?
Newly created key:value is deleted.

What happens instead?
Boom.

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

Repository Root: http://josm.openstreetmap.de/svn
Build-Date: 2010-07-17 01:31:31
Last Changed Author: bastiK
Revision: 3376
Repository UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
URL: http://josm.openstreetmap.de/svn/trunk
Last Changed Date: 2010-07-16 23:44:00 +0200 (Fri, 16 Jul 2010)
Last Changed Rev: 3376

Identification: JOSM/1.5 (3376 en)
Memory Usage: 123 MB / 123 MB (24 MB allocated, but free)
Java version: 1.6.0_20, Apple Inc., Java HotSpot(TM) 64-Bit Server VM
Operating system: Mac OS X
Dataset consistency test: No problems found

Plugin: measurement (21706)
Plugin: slippymap (21706)

java.lang.NullPointerException
	at org.openstreetmap.josm.gui.tagging.TagCellRenderer.renderTagName(TagCellRenderer.java:43)
	at org.openstreetmap.josm.gui.tagging.TagCellRenderer.getTableCellRendererComponent(TagCellRenderer.java:103)
	at javax.swing.JTable$AccessibleJTable.getAccessibleChild(JTable.java:7023)
	at javax.swing.JTable$AccessibleJTable.getAccessibleAt(JTable.java:7410)
	at javax.swing.JTable$AccessibleJTable.valueChanged(JTable.java:6925)
	at javax.swing.DefaultListSelectionModel.fireValueChanged(DefaultListSelectionModel.java:167)
	at javax.swing.DefaultListSelectionModel.fireValueChanged(DefaultListSelectionModel.java:147)
	at javax.swing.DefaultListSelectionModel.fireValueChanged(DefaultListSelectionModel.java:194)
	at javax.swing.DefaultListSelectionModel.changeSelection(DefaultListSelectionModel.java:388)
	at javax.swing.DefaultListSelectionModel.changeSelection(DefaultListSelectionModel.java:398)
	at javax.swing.DefaultListSelectionModel.setSelectionInterval(DefaultListSelectionModel.java:442)
	at javax.swing.JTable.changeSelectionModel(JTable.java:2352)
	at javax.swing.JTable.changeSelection(JTable.java:2421)
	at javax.swing.plaf.basic.BasicTableUI$Handler.adjustSelection(BasicTableUI.java:1085)
	at javax.swing.plaf.basic.BasicTableUI$Handler.mousePressed(BasicTableUI.java:1008)
	at java.awt.AWTEventMulticaster.mousePressed(AWTEventMulticaster.java:263)
	at java.awt.Component.processMouseEvent(Component.java:6345)
	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:4279)
	at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4212)
	at java.awt.Container.dispatchEventImpl(Container.java:2129)
	at java.awt.Window.dispatchEventImpl(Window.java:2478)
	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)

[stoecker]

Sorry can't reproduce. Please add a reproducable description and reopen report.