question: public void delete ( ) throws IOException { close ( ) ; if ( m_channel . isOpen ( ) ) throw new IllegalStateException ( "Request to delete file with open readers and writers" ) ; if ( m_haLogFile . exists ( ) ) { try { m_haLogFile . delete ( ) ; } catch ( SecurityException se ) { log . warn ( "unable to delete file" , se ) ; } } }
target:  Requests that the underlying log file is deleted.