id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
4505	NullPointerException in RelationDialogManager.windowClosed() in r2948	skela	team	"I had the relation editor window open (with no changes pending, as far as I remember) while I uploaded changes. Then I hit the ‘cancel’ button and got this:

java.lang.NullPointerException
	at org.openstreetmap.josm.gui.dialogs.relation.RelationDialogManager.windowClosed(RelationDialogManager.java:217)
	at java.awt.AWTEventMulticaster.windowClosed(AWTEventMulticaster.java:343)
	at java.awt.AWTEventMulticaster.windowClosed(AWTEventMulticaster.java:342)
	at java.awt.Window.processWindowEvent(Window.java:1865)
	at javax.swing.JDialog.processWindowEvent(JDialog.java:633)
	at java.awt.Window.processEvent(Window.java:1820)
	at java.awt.Component.dispatchEventImpl(Component.java:4583)
	at java.awt.Container.dispatchEventImpl(Container.java:2099)
	at java.awt.Window.dispatchEventImpl(Window.java:2475)
	at java.awt.Component.dispatchEvent(Component.java:4413)
	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)

After that, I tried to create a new relation and was met with exactly the same stack trace. I am using a self-built JOSM r2948 with no plugins (they refused to load)."	defect	closed	normal		Core	latest	fixed	relation