* https://github.com/google/guava/issues/6634: ProcessHandle has more accurate information,
       * but that class isn't available under all environments that we support. We use it if
       * available and fall back if not.
       */
      String fromSystemProperty = requireNonNull(USER_NAME.value());

      try {
        Class<?> processHandleClass = Class.forName("java.lang.ProcessHandle");

          println("TLSv1.3 requires an external command run before first traffic is sent")
          println("Follow instructions at https://github.com/neykov/extract-tls-secrets for TLSv1.3")
          println("Pid: ${ProcessHandle.current().pid()}")

          Thread.sleep(10000)
        }
      }
      CommandLine -> {
        return ProcessBuilder(
          "tshark",
          "-l",
          "-V",
          "-o",