question: public void update ( int n , byte [ ] b , int off , int len , ManifestEntryVerifier mev ) throws IOException { if ( n != - 1 ) { if ( parsingBlockOrSF ) { baos . write ( b , off , n ) ; } else { mev . update ( b , off , n ) ; } } else { processEntry ( mev ) ; } }
target:  update an array of bytes.