protected String getHttpResponseString(CachedUrl cu) { Properties cuProps = cu.getProperties(); Properties filteredProps = filterResponseProps(cuProps); String hdrString = PropUtil.toHeaderString(filteredProps); StringBuilder sb = new StringBuilder(hdrString.length() + 30); String line1 = inferHttpResponseCode(cu, cuProps); sb.append(line1); sb.append(Constants.CRLF); sb.append(hdrString); sb.append(Constants.CRLF); return sb.toString(); }