id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
1844	Unable to open preferences after loading of plugin list fails	augustus.kling@…	framm	"I tried to download the list of plugins within the preferences window. JOSM failed to load the list due to unknown reasons. JOSM states that it downloaded plugin information from one site (http://josm.openstreetmap.de/wiki/Plugins was online), but does not show the list of plugins.
Its not possible to open the preferences window again. This even persisted after JOSM was closed and restarted.
The error also happens with release 1132 which is marked as more or less stable.

To make JOSM start again you need to remove the settings. To do so (and loose your settings) proceed as follows:
German Windows: Delete C:\Dokumente und Einstellungen\[username]\Anwendungsdaten\JOSM
English Windows: Delete C:\Documents and Settings\[username]\Application Data\JOSM
Linux: Delete ~/.josm

Path: trunk
URL: http://josm.openstreetmap.de/svn/trunk
Repository Root: http://josm.openstreetmap.de/svn
Repository UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
Revision: 1132
Node Kind: directory
Last Changed Author: ulfl
Last Changed Rev: 1132
Last Changed Date: 2008-12-14 01:47:32 +0100 (Sun, 14 Dec 2008)


java.lang.NullPointerException
	at org.openstreetmap.josm.gui.preferences.PluginPreference.refreshPluginPanel(PluginPreference.java:248)
	at org.openstreetmap.josm.gui.preferences.PluginPreference.addGui(PluginPreference.java:146)
	at org.openstreetmap.josm.gui.preferences.PreferenceDialog.<init>(PreferenceDialog.java:115)
	at org.openstreetmap.josm.actions.PreferencesAction.actionPerformed(PreferencesAction.java:39)
	at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
	at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source)
	at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
	at javax.swing.DefaultButtonModel.setPressed(Unknown Source)
	at javax.swing.AbstractButton.doClick(Unknown Source)
	at javax.swing.plaf.basic.BasicMenuItemUI.doClick(Unknown Source)
	at javax.swing.plaf.basic.BasicMenuItemUI$Handler.mouseReleased(Unknown Source)
	at java.awt.AWTEventMulticaster.mouseReleased(Unknown Source)
	at java.awt.Component.processMouseEvent(Unknown Source)
	at javax.swing.JComponent.processMouseEvent(Unknown Source)
	at java.awt.Component.processEvent(Unknown Source)
	at java.awt.Container.processEvent(Unknown Source)
	at java.awt.Component.dispatchEventImpl(Unknown Source)
	at java.awt.Container.dispatchEventImpl(Unknown Source)
	at java.awt.Component.dispatchEvent(Unknown Source)
	at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
	at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
	at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
	at java.awt.Container.dispatchEventImpl(Unknown Source)
	at java.awt.Window.dispatchEventImpl(Unknown Source)
	at java.awt.Component.dispatchEvent(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)
"	defect	closed	critical		Core		fixed	plugin list download