question: private static byte [ ] readClass ( final InputStream is , boolean close ) throws IOException { if ( is == null ) { throw new IOException ( "Class not found" ) ; } try { byte [ ] b = new byte [ is . available ( ) ] ; int len = 0 ; while ( true ) { int n = is . read ( b , len , b . length - len ) ; if ( n == - 1 ) { if ( len < b . length ) { byte [ ] c = new byte [ len ] ; System . arraycopy ( b , 0 , c , 0 , len ) ; b = c ; } return b ; } len += n ; if ( len == b . length ) { int last = is . read ( ) ; if ( last < 0 ) { return b ; } byte [ ] c = new byte [ b . length + 1000 ] ; System . arraycopy ( b , 0 , c , 0 , len ) ; c [ len ++ ] = ( byte ) last ; b = c ; } } } finally { if ( close ) { is . close ( ) ; } } }
target:  Reads the bytecode of a class.