static int readDebugPortFile(Path filePath) throws IOException {
    try (Stream<String> lines = Files.lines(filePath)) {
      String portNumber = lines.findFirst().orElseThrow(() -> {
        return new IllegalArgumentException("Failed to read JCEF debugging port number in " + filePath);
      });

      int value = Integer.parseInt(portNumber);
      if (value > 0) {
        return value;
      }

      throw new IllegalDataException("Invalid JCEF JCEF debugging port number value: " + value);
    }
  }
static int readDebugPortFile(Path filePath)