Exeption while starting up

[anonymous]

Path: josm
URL: ​http://www.eigenheimstrasse.de/svn/josm
Repository Root: ​http://www.eigenheimstrasse.de/svn/josm
Repository UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
Revision: 305
Node Kind: directory
Last Changed Author: imi
Last Changed Rev: 305
Last Changed Date: 2007-08-13 13:09:04 +0200 (Mon, 13 Aug 2007)

java.lang.NoClassDefFoundError: org/openstreetmap/josm/actions/DownloadAction$DownloadTask

at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(Unknown Source)
at java.security.SecureClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.access$000(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClassInternal(Unknown Source)
at landsat.LandsatPlugin.<init>(LandsatPlugin.java:21)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
at java.lang.reflect.Constructor.newInstance(Unknown Source)
at java.lang.Class.newInstance0(Unknown Source)
at java.lang.Class.newInstance(Unknown Source)
at org.openstreetmap.josm.plugins.PluginInformation.load(PluginInformation.java:129)
at org.openstreetmap.josm.Main.loadPlugins(Main.java:238)
at org.openstreetmap.josm.gui.MainApplication.main(MainApplication.java:149)

[anonymous]

I have the same error. I think this error is caused by a misconfigured system. I use WinXP SP2. The same josm.jar, that causes this error on my workstation works fine on my notebook.
I did not find the cause of this error by now. Even installing java 1.6 over 1.5 did not solve it.

[alexisd]

I had the same problem, and fixed it by removing landsat.jar from the plugins folder.

[anonymous]

I had a similar problem. Several plugins do not work with the new version of JOSM. I had to remove measurement.jar and UtilsPlugin.jar from the plugin folder.

[Gabriel Ebner <ge@…>]

You were using a newer JOSM version than LandsatPlugin. This no longer applies now (mainly because there is no more LandsatPlugin).