src/plugin/protocol-htmlunit/src/java/org/apache/nutch/protocol/htmlunit/HttpResponse.java [478:524]:
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  private int parseStatusLine(PushbackInputStream in, StringBuffer line)
      throws IOException, HttpException {
    readLine(in, line, false);

    int codeStart = line.indexOf(" ");
    int codeEnd = line.indexOf(" ", codeStart + 1);

    // handle lines with no plaintext result code, ie:
    // "HTTP/1.1 200" vs "HTTP/1.1 200 OK"
    if (codeEnd == -1)
      codeEnd = line.length();

    int code;
    try {
      code = Integer.parseInt(line.substring(codeStart + 1, codeEnd));
    } catch (NumberFormatException e) {
      throw new HttpException(
          "bad status line '" + line + "': " + e.getMessage(), e);
    }

    return code;
  }

  private void processHeaderLine(StringBuffer line)
      throws IOException, HttpException {

    int colonIndex = line.indexOf(":"); // key is up to colon
    if (colonIndex == -1) {
      int i;
      for (i = 0; i < line.length(); i++)
        if (!Character.isWhitespace(line.charAt(i)))
          break;
      if (i == line.length())
        return;
      throw new HttpException("No colon in header:" + line);
    }
    String key = line.substring(0, colonIndex);

    int valueStart = colonIndex + 1; // skip whitespace
    while (valueStart < line.length()) {
      int c = line.charAt(valueStart);
      if (c != ' ' && c != '\t')
        break;
      valueStart++;
    }
    String value = line.substring(valueStart);
    headers.set(key, value);
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src/plugin/protocol-interactiveselenium/src/java/org/apache/nutch/protocol/interactiveselenium/HttpResponse.java [416:462]:
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  private int parseStatusLine(PushbackInputStream in, StringBuffer line)
      throws IOException, HttpException {
    readLine(in, line, false);

    int codeStart = line.indexOf(" ");
    int codeEnd = line.indexOf(" ", codeStart + 1);

    // handle lines with no plaintext result code, ie:
    // "HTTP/1.1 200" vs "HTTP/1.1 200 OK"
    if (codeEnd == -1)
      codeEnd = line.length();

    int code;
    try {
      code = Integer.parseInt(line.substring(codeStart + 1, codeEnd));
    } catch (NumberFormatException e) {
      throw new HttpException(
          "bad status line '" + line + "': " + e.getMessage(), e);
    }

    return code;
  }

  private void processHeaderLine(StringBuffer line)
      throws IOException, HttpException {

    int colonIndex = line.indexOf(":"); // key is up to colon
    if (colonIndex == -1) {
      int i;
      for (i = 0; i < line.length(); i++)
        if (!Character.isWhitespace(line.charAt(i)))
          break;
      if (i == line.length())
        return;
      throw new HttpException("No colon in header:" + line);
    }
    String key = line.substring(0, colonIndex);

    int valueStart = colonIndex + 1; // skip whitespace
    while (valueStart < line.length()) {
      int c = line.charAt(valueStart);
      if (c != ' ' && c != '\t')
        break;
      valueStart++;
    }
    String value = line.substring(valueStart);
    headers.set(key, value);
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