id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
4897	nullPointerException on mouse click	pieren	pieren	"Today, I saw a nullPointer exception when creating new data (many new adjacent buildings, so new ways/nodes overlapping). Here is the bug report:

java.lang.NullPointerException
	at java.util.HashSet.iterator(Unknown Source)
	at org.openstreetmap.josm.actions.mapmode.DrawAction.removeHighlighting(DrawAction.java:199)
	at org.openstreetmap.josm.actions.mapmode.DrawAction.addHighlighting(DrawAction.java:156)
	at org.openstreetmap.josm.actions.mapmode.DrawAction.mouseMoved(DrawAction.java:637)
	at java.awt.AWTEventMulticaster.mouseMoved(Unknown Source)
	at java.awt.Component.processMouseMotionEvent(Unknown Source)
	at javax.swing.JComponent.processMouseMotionEvent(Unknown Source)
	at java.awt.Component.processEvent(Unknown Source)
#
# A fatal error has been detected by the Java Runtime Environment:
#
#  EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x6d8a3563, pid=3520, tid=3652
#
# JRE version: 6.0_16-b01
# Java VM: Java HotSpot(TM) Client VM (14.2-b01 mixed mode windows-x86 )
# Problematic frame:
# V  [jvm.dll+0xa3563]
#

Since I was not able to restore an operiting editor, I lost my unsaved edits. That's why I will classify it as 'critical' (I think it will be very hard to reproduce).

My version built and running on Eclipse:
Build-Date: 2010-04-08 18:47:04
Revision: 3174
Is-Local-Build: true"	defect	closed	normal		Core	latest	invalid