From our server.log, Solaris 10 server upgraded 731 to 732. 2014-03-01 15:40:24,017 ERROR [STDERR] Mar 1, 2014 3:40:24 PM java.util.prefs.FileSystemPreferences checkLockFile0ErrorCodeWARNING: Could not lock User prefs. Unix error code 2.2014-03-01 15:40:24,018 ERROR [STDERR] Mar 1, 2014 3:40:24 PM java.util.prefs.FileSystemPreferences syncWorldWARNING: Couldn't flush user prefs: java.util.prefs.BackingStoreException: Couldn't get file lock.Any ideas what this means ?