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Whenever I start eclipse, I keep getting this message printed in the console again and again.

WARNING: Couldn't flush user prefs: java.util.prefs.BackingStoreException: Couldn't get file lock.

The message seems clear, but how do I know the file it is trying to get a lock for?

Here is an excerpt from the .log file that seems relevant:

!ENTRY org.eclipse.ui.navigator 2 0 2014-02-27 13:40:53.913
!MESSAGE Can't find Navigator Content Descriptor with id: org.eclipse.jst.servlet.ui.EnhancedJavaRendering

!ENTRY org.eclipse.mylyn.tasks.ui 4 0 2014-02-27 13:40:57.125
!MESSAGE Could not load repository template extension contributed by org.eclipse.mylyn.bugzilla.ide with connectorKind bugzilla

!ENTRY com.google.gdt.eclipse.login 4 0 2014-02-27 13:40:58.904
!MESSAGE Could not flush preferences while saving login credentials
silentnights
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  • There may be a more detailed message in the `.log` file in the workspace `.metadata` directory. – greg-449 Mar 06 '14 at 11:32
  • I added an excerpt from the logs that seems relevant, please let me know if you need other details. – silentnights Mar 06 '14 at 15:05
  • Most likely the `com.google.gdt.eclipse.login` message, I don't know anything about that – greg-449 Mar 06 '14 at 15:18
  • Aint there anyway to know the file that causing the problem? The message keeps printing on the shell, every few seconds or so... Any pointing would be great. – silentnights Mar 10 '14 at 12:33
  • Does this answer your question? [java.util.Prefs throwing BackingStoreException - Why?](https://stackoverflow.com/questions/2027566/java-util-prefs-throwing-backingstoreexception-why) – Vadzim Dec 03 '19 at 14:18

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