question: private boolean removeConfigFile ( File file ) { if ( file . exists ( ) ) { for ( File file1 : file . listFiles ( ) ) { if ( file1 . isDirectory ( ) ) { removeConfigFile ( file1 ) ; } else { boolean isDeleted = file1 . delete ( ) ; if ( ! isDeleted ) { LOGGER . error ( "The file " + file1 . getPath ( ) + " cannot be deleted" ) ; } } } } return ( file . delete ( ) ) ; }
target:  Clean-up configuration files before leaving