Dialog was already created execeptiom

[anonymous]

What steps will reproduce the problem?

1. start josm
2. try to download data via josm remote or manual

Some error

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

Repository Root: http://josm.openstreetmap.de/svn
Build-Date: 2010-12-31 02:31:28
Last Changed Author: bastiK
Revision: 3751
Repository UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
URL: http://josm.openstreetmap.de/svn/trunk
Last Changed Date: 2010-12-30 16:31:05 +0100 (Thu, 30 Dec 2010)
Last Changed Rev: 3751

Identification: JOSM/1.5 (3751 en)
Memory Usage: 36 MB / 247 MB (8 MB allocated, but free)
Java version: 1.6.0_23, Sun Microsystems Inc., Java HotSpot(TM) Client VM
Operating system: Windows 7

Plugin: AddrInterpolation
Plugin: CommandLine
Plugin: OpeningHoursEditor
Plugin: PicLayer
Plugin: SimplifyArea
Plugin: buildings_tools
Plugin: graphview
Plugin: openstreetbugs
Plugin: public_transport
Plugin: reverter
Plugin: routes
Plugin: routing
Plugin: tagging-preset-tester
Plugin: turnrestrictions

java.lang.reflect.InvocationTargetException
	at java.awt.EventQueue.invokeAndWait(Unknown Source)
	at org.openstreetmap.josm.gui.PleaseWaitRunnable.doRealRun(PleaseWaitRunnable.java:88)
	at org.openstreetmap.josm.gui.PleaseWaitRunnable.run(PleaseWaitRunnable.java:129)
	at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
	at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
	at java.util.concurrent.FutureTask.run(Unknown Source)
	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
	at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.IllegalStateException: Dialog was already created
	at org.openstreetmap.josm.gui.dialogs.LayerListDialog.createInstance(LayerListDialog.java:88)
	at org.openstreetmap.josm.gui.MapFrame.<init>(MapFrame.java:175)
	at org.openstreetmap.josm.Main.addLayer(Main.java:239)
	at org.openstreetmap.josm.actions.downloadtasks.DownloadOsmTask$DownloadTask.finish(DownloadOsmTask.java:157)
	at org.openstreetmap.josm.gui.PleaseWaitRunnable$1.run(PleaseWaitRunnable.java:90)
	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.pumpEventsForFilter(Unknown Source)
	at java.awt.Dialog$1.run(Unknown Source)
	at java.awt.Dialog$3.run(Unknown Source)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.awt.Dialog.show(Unknown Source)
	at java.awt.Component.show(Unknown Source)
	at java.awt.Component.setVisible(Unknown Source)
	at java.awt.Window.setVisible(Unknown Source)
	at java.awt.Dialog.setVisible(Unknown Source)
	at org.openstreetmap.josm.gui.progress.PleaseWaitProgressMonitor$3.run(PleaseWaitProgressMonitor.java:83)
	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)