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Bug 270932

Summary:	NPE working with Document Groups
Product:	platform	Reporter:	Svata Dedic <sdedic>
Component:	Window System	Assignee:	Stanislav Aubrecht <saubrecht>
Status:	NEW ---
Severity:	normal
Priority:	P3
Version:	Dev
Hardware:	PC
OS:	Linux
Issue Type:	DEFECT	Exception Reporter:

Description Svata Dedic 2017-06-22 11:44:43 UTC

I have a view in "editor"-like mode which declares itself as non-persistent. When doing Window | Document Groups | <select any group>, NPE is thrown.
The view was not saved (since it is not persistent), but group manager impl assumes the .settings file is always created.

java.lang.NullPointerException
	at org.netbeans.core.windows.documentgroup.GroupsManager.closeGroup(GroupsManager.java:376)
	at org.netbeans.core.windows.documentgroup.DocumentGroupImpl.close(DocumentGroupImpl.java:70)
	at org.netbeans.core.windows.documentgroup.GroupsManager.openGroup(GroupsManager.java:172)
	at org.netbeans.core.windows.documentgroup.DocumentGroupImpl.open(DocumentGroupImpl.java:66)
	at org.netbeans.core.windows.documentgroup.GroupsMenuAction$OpenGroupAction$1.run(GroupsMenuAction.java:167)
	at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:311)