code: public boolean filterNTLMResponses(String k) {
          boolean found = false;
          for (int i=0; i<nkeys; i++) {
              if (k.equalsIgnoreCase(keys[i])
                      && values[i] != null && values[i].length() > 5
                      && values[i].regionMatches(true, 0, "NTLM ", 0, 5)) {
                  found = true;
                  break;
              }
          }
          if (found) {
              int j = 0;
              for (int i=0; i<nkeys; i++) {
                  if (k.equalsIgnoreCase(keys[i]) && (
                          "Negotiate".equalsIgnoreCase(values[i]) ||
                          "Kerberos".equalsIgnoreCase(values[i]))) {
                      continue;
                  }
                  if (i != j) {
                      keys[j] = keys[i];
                      values[j] = values[i];
                  }
                  j++;
              }
              if (j != nkeys) {
                  nkeys = j;
                  return true;
              }
          }
          return false;
      }
docs: Removes bare Negotiate and Kerberos headers when an "NTLM ..."
  appears. All Performed on headers with key being k.
  @return true if there is a change