id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
5908	NPE for junction checking	stoecker	joerg	"What steps will reproduce the problem?
 1. Open JOSM with plugin enabled
 2. STRG-N for a new layer
 3. Close JOSM

What is the expected result?
No crash

What happens instead?
A NPE probably caused by illegal checks in closing the software

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

{{{
Build-Date: 2011-02-04 21:09:34
Revision: 3853
Is-Local-Build: true

Identification: JOSM/1.5 (3853 SVN de)
Memory Usage: 87 MB / 455 MB (51 MB allocated, but free)
Java version: 1.6.0_23, Sun Microsystems Inc., Java HotSpot(TM) Server VM
Operating system: Linux

Plugin: buildings_tools (25192)
Plugin: editgpx (25192)
Plugin: junctionchecking (75)
Plugin: livegps (25192)
Plugin: turnrestrictions (25199)
Plugin: undelete (25199)

java.lang.NullPointerException
	at org.openstreetmap.josm.plugins.JunctionChecker.JunctionCheckerPlugin.activeLayerChange(JunctionCheckerPlugin.java:83)
	at org.openstreetmap.josm.gui.MapView.fireActiveLayerChanged(MapView.java:140)
	at org.openstreetmap.josm.gui.MapView.setActiveLayer(MapView.java:718)
	at org.openstreetmap.josm.gui.MapView.removeLayer(MapView.java:357)
	at org.openstreetmap.josm.Main.exitJosm(Main.java:538)
	at org.openstreetmap.josm.gui.MainApplication$1.windowClosing(MainApplication.java:65)
	at java.awt.AWTEventMulticaster.windowClosing(AWTEventMulticaster.java:332)
	at java.awt.AWTEventMulticaster.windowClosing(AWTEventMulticaster.java:332)
	at java.awt.AWTEventMulticaster.windowClosing(AWTEventMulticaster.java:332)
	at java.awt.Window.processWindowEvent(Window.java:1865)
	at javax.swing.JFrame.processWindowEvent(JFrame.java:274)
	at java.awt.Window.processEvent(Window.java:1823)
	at java.awt.Component.dispatchEventImpl(Component.java:4630)
	at java.awt.Container.dispatchEventImpl(Container.java:2099)
	at java.awt.Window.dispatchEventImpl(Window.java:2478)
	at java.awt.Component.dispatchEvent(Component.java:4460)
	at java.awt.EventQueue.dispatchEvent(EventQueue.java:599)
	at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
	at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)
	at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)
}}}
"	defect	closed	normal		Plugin junctionchecking		fixed	template_report