question: @ Override public void write ( byte [ ] buf , int offset , int length ) throws IOException { final byte [ ] buffer = _writeBuffer ; final int bufferLength = buffer . length ; StreamImpl source = _source ; while ( true ) { final int writeLength = _writeLength ; if ( writeLength == 0 && bufferLength <= length ) { if ( source != null ) { source . write ( buf , offset , length , false ) ; _position += length ; return ; } } final int sublen = Math . min ( length , bufferLength - writeLength ) ; System . arraycopy ( buf , offset , buffer , writeLength , sublen ) ; if ( length == sublen ) { _writeLength = writeLength + length ; if ( _implicitFlush ) { flush ( ) ; } return ; } if ( source == null ) { return ; } source . write ( buffer , 0 , bufferLength , false ) ; _position += bufferLength ; _writeLength = 0 ; length -= sublen ; offset += sublen ; if ( bufferLength <= length ) { source . write ( buf , offset , length , false ) ; _position += length ; return ; } } }
target:  Writes a byte array