question: closes the underlying reader quietly . this method is useful if you only want to process the first few lines of a larger file . if you do not close the iterator then the reader remains open . this method can safely be called multiple times . concode_field_sep BufferedReader bufferedReader concode_elem_sep String cachedLine concode_elem_sep boolean finished concode_field_sep Object next concode_elem_sep String nextLine concode_elem_sep boolean hasNext concode_elem_sep boolean isValidLine concode_elem_sep void closeQuietly concode_elem_sep void remove
target: void function ( ) { finished = true ; IOUtils . closeQuietly ( bufferedReader ) ; cachedLine = null ; }