#4004 ClassCastException: BufImgSurfaceData cannot be cast to XRSurfaceData after long idle period

[Alan Ezust]

I had jEdit running and idle for a long time. I don't know how to reproduce this yet.

When I tried to use it again, I saw this exception in the activity log.
Using jEdit 5.3.1 (svn trunk) from today.
jEdit stops painting dockables after that, and I am unable to do lots of things (but it is still running).

on Linux / KDE plasma5 / Kubuntu.

[Alan Ezust]

Some more info: It might be related to the way the screensaver or the power-saving features are interacting with the JDK, but it is a JDK bug that is linux-specific and not something that can be fixed in jEdit.

http://bugs.java.com/bugdatabase/view_bug.do?bug_id=7172749

https://bugs.openjdk.java.net/browse/JDK-7172749

[Jeremy Whiting]

Hi,
Looking at the bug report the issue is for a different defect. The call stacks differ.

The exception for you is thrown in .cacheToTmpSurface method.

The jdk bug report is for the method .validateSurface

I am seeing the same issue as you. I'll try and get the jdk issue fixed as a separate bug report.