question: public void deletePersistentStore ( ) { try { close ( ) ; } catch ( IOException e ) { } try { deleteLogFile ( version ) ; } catch ( LogException e ) { } try { deleteSnapshot ( version ) ; } catch ( LogException e ) { } try { deleteFile ( fName ( versionFile ) ) ; } catch ( LogException e ) { } try { dir . delete ( ) ; } catch ( SecurityException e ) { } }
target:  Closes the incremental update log file, removes all ReliableLog-related files from the stable storage directory, and deletes the directory.