Bug 541744

Summary:	PanOnStrokeHandler throws NPE from an internal AnimationTimer after being aborted
Product:	[Tools] GEF	Reporter:	Matthias Wienand <matthias.wienand>
Component:	GEF MVC	Assignee:	Hannes Niederhausen <hniederhausen>
Status:	ASSIGNED ---	QA Contact:
Severity:	normal
Priority:	P3	CC:	frank.rene.benoit, miklossy
Version:	5.0.100
Target Milestone:	---
Hardware:	All
OS:	All
Whiteboard:

Description Matthias Wienand

2018-11-30 08:12:41 EST

Currently, PanOnStrokeHandler cannot be safely aborted, because it will then throw NullPointerException from an internal AnimationTimer (due to access to a field set to null) that is still running after the handler was aborted.

In order to resolve the issue, we need to stop the timer when the handler is aborted.

Comment 1 Tamas Miklossy

2019-06-15 15:26:43 EDT

See also https://github.com/itemis/gef-mindmap-tutorial/issues/2