error if no datatype it`s load. Only bing layer

[anonymous]

What steps will reproduce the problem?

What is the expected result?

What happens instead?

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

Repository Root: http://josm.openstreetmap.de/svn
Build-Date: 2011-10-04 01:31:24
Last Changed Author: bastiK
Revision: 4487
Repository UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
URL: http://josm.openstreetmap.de/svn/trunk
Last Changed Date: 2011-10-03 22:52:38 +0200 (Mon, 03 Oct 2011)
Last Changed Rev: 4487

Identification: JOSM/1.5 (4487 en)
Memory Usage: 184 MB / 494 MB (31 MB allocated, but free)
Java version: 1.6.0_26, Sun Microsystems Inc., Java HotSpot(TM) Client VM
Operating system: Windows 7

Plugin: ext_tools (26606)
Plugin: openstreetbugs (26606)
Plugin: turnrestrictions (26666)

java.lang.NullPointerException
	at org.openstreetmap.josm.command.AddCommand.executeCommand(AddCommand.java:50)
	at org.openstreetmap.josm.command.SequenceCommand.executeCommand(SequenceCommand.java:53)
	at org.openstreetmap.josm.data.UndoRedoHandler.addNoRedraw(UndoRedoHandler.java:36)
	at org.openstreetmap.josm.data.UndoRedoHandler.add(UndoRedoHandler.java:58)
	at ext_tools.ExtTool$3.run(ExtTool.java:241)
	at java.lang.Thread.run(Unknown Sourc