code: public void setContentLength(int contentLength, boolean resetMatchCount) {
          if (contentLength <= 0) {
              throw new IllegalArgumentException("contentLength: "
                      + contentLength);
          }
  
          ctx.setContentLength(contentLength);
          if (resetMatchCount) {
              ctx.setMatchCount(0);
          }
      }
docs: Sets the the length of the content line to be decoded.
  When set, it overrides the dynamic delimiter setting and content length
  method will be used for decoding on the next decodeOnce call.
  The default value is <tt>-1</tt>.
  
  @param contentLength the content length to match
  @param resetMatchCount delimiter matching is reset if true