Crash at start-up of JOSM

[anonymous]

What steps will reproduce the problem?

1. Downloaded JOSM via ​http://josm.openstreetmap.de/josm-tested.jar and saved it to the desktop of Ubuntu 9.10.
2. Clicked with the right mouse button on the jar-file and selected Open with Sun Java 6 Runtime.
3. After that the program crashed with the error shown below.

What is the expected result?
The startup of the program.

What happens instead?
The program crashed.

Please provide any additional information below. Attach a screenshot if
possible.
I've installed the package sun-java6-bin (version 6.20dlj-0ubuntu1.9.10)

Repository Root: http://josm.openstreetmap.de/svn
Build-Date: 2010-04-26 01:31:31
Last Changed Author: jttt
Revision: 3208
Repository UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
URL: http://josm.openstreetmap.de/svn/trunk
Last Changed Date: 2010-04-25 15:31:07 +0200 (Sun, 25 Apr 2010)
Last Changed Rev: 3208

Memory Usage: 88 MB / 446 MB (21 MB allocated, but free)
Java version: 1.6.0_20, Sun Microsystems Inc., Java HotSpot(TM) Server VM
Operating system: Linux



java.lang.IndexOutOfBoundsException: Index: 3, Size: 3
	at java.util.ArrayList.RangeCheck(ArrayList.java:547)
	at java.util.ArrayList.get(ArrayList.java:322)
	at java.awt.Container.createHierarchyEvents(Container.java:1357)
	at java.awt.Container.createHierarchyEvents(Container.java:1357)
	at java.awt.Container.createHierarchyEvents(Container.java:1357)
	at java.awt.Container.createHierarchyEvents(Container.java:1357)
	at java.awt.Container.createHierarchyEvents(Container.java:1357)
	at java.awt.Container.createHierarchyEvents(Container.java:1357)
	at java.awt.Component.hide(Component.java:1601)
	at java.awt.Window.hide(Window.java:942)
	at java.awt.Component.show(Component.java:1565)
	at java.awt.Component.setVisible(Component.java:1515)
	at java.awt.Window.setVisible(Window.java:842)
	at org.openstreetmap.josm.gui.MainApplication.main(MainApplication.java:202)