Check if port is open

CheckPort.java

  public static boolean serverListening(String host, int port) {
    Socket s = null;
    try {
      s = new Socket(host, port);
      log.info("OK -> HOST: {}, PORT: {}", host, port);
      return true;
    } catch (Exception e) {
      log.info("CLOSED -> HOST: {}, PORT: {}", host, port);
      return false;
    } finally {
      if (s != null) {
        try {
          s.close();
        } catch (Exception e) {
          log.error("Error", e);
        }
      }
    }
  }


@Test
public void someTest() {
    assumeTrue(serverListening("localhost", 22));
}