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NullPointerException in UndoChanges then Adderror not handling no message

Description

04/01/2016 10.01.43:EST:com.jthink.songkong.analyse.analyser.RevertChanges:revertChanges:SEVERE: Unable to undo changes to song: null
java.lang.NullPointerException
04/01/2016 10.01.43:EST:com.jthink.songkong.analyse.analyser.FileRenamer:deleteFolderIfEmpty:SEVERE: Deleting empty folder:/Volumes/My Passport for Mac/OurMusic/My Music/Warren Cuccurullo:false
04/01/2016 10.01.43:EST:com.jthink.songkong.analyse.general.Errors:addError:SEVERE: Adding Error:Unable to undo changes to song: null
java.lang.Exception
at com.jthink.songkong.analyse.general.Errors.addError(Errors.java:27)
at com.jthink.songkong.analyse.analyser.RevertChanges.revertChanges(RevertChanges.java:123)
at com.jthink.songkong.analyse.analyser.RevertChanges.call(RevertChanges.java:64)
at com.jthink.songkong.analyse.analyser.RevertChanges.call(RevertChanges.java:40)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
04/01/2016 10.01.43:EST:com.jthink.songkong.analyse.general.Errors:addError:SEVERE: Adding Error:Unable to undo changes to song: null

Environment

None

Status

Assignee

Unassigned

Reporter

Paul Taylor

Labels

None

Forum Username

Keith

os

None

Fix versions

Affects versions

3.21

Priority

Major