Nullpointer crash on adding plugins

[osm@…]

Steps to reproduce:

1. Preferences,
2. Plugins,
3. Tick some plugins to install them
4. click OK
5. Crash

Ideally, JOSM should not crash when adding plugins...

Path: trunk
URL: ​http://josm.openstreetmap.de/svn/trunk
Repository Root: ​http://josm.openstreetmap.de/svn
Repository UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
Revision: 1738
Node Kind: directory
Last Changed Author: stoecker
Last Changed Rev: 1738
Last Changed Date: 2009-07-05 19:42:18 +0200 (Sun, 05 Jul 2009)

Memory Usage: 76 MB / 483 MB (42 MB allocated, but free)
Java version: 1.6.0_0

java.lang.NullPointerException

at org.openstreetmap.josm.plugins.PluginSelection.finish(PluginSelection.java:101)
at org.openstreetmap.josm.gui.preferences.PluginPreference.ok(PluginPreference.java:116)
at org.openstreetmap.josm.gui.preferences.PreferenceDialog.ok(PreferenceDialog.java:93)
at org.openstreetmap.josm.actions.PreferencesAction.run(PreferencesAction.java:80)
at org.openstreetmap.josm.actions.PreferencesAction.actionPerformed(PreferencesAction.java:39)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2012)
at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2335)
at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:404)
at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259)
at javax.swing.AbstractButton.doClick(AbstractButton.java:374)
at javax.swing.plaf.basic.BasicMenuItemUI.doClick(BasicMenuItemUI.java:1688)
at javax.swing.plaf.basic.BasicMenuItemUI$Handler.mouseReleased(BasicMenuItemUI.java:1732)
at java.awt.AWTEventMulticaster.mouseReleased(AWTEventMulticaster.java:289)
at java.awt.Component.processMouseEvent(Component.java:6108)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3276)
at java.awt.Component.processEvent(Component.java:5873)
at java.awt.Container.processEvent(Container.java:2105)
at java.awt.Component.dispatchEventImpl(Component.java:4469)
at java.awt.Container.dispatchEventImpl(Container.java:2163)
at java.awt.Component.dispatchEvent(Component.java:4295)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4461)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4125)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4055)
at java.awt.Container.dispatchEventImpl(Container.java:2149)
at java.awt.Window.dispatchEventImpl(Window.java:2478)
at java.awt.Component.dispatchEvent(Component.java:4295)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:604)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:275)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:200)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:190)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:185)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:177)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:138)

[stoecker]

Closed as duplicate of #2836.