How to use

isRunning

method

in

org.eclipse.jetty.server.Connector

/**
 * This call sets TLSServerParameters for a JettyHTTPServerEngine
 * that will be subsequently created. It will not alter an engine
 * that has already been created for that network port.
 * @param host       if not null, server will listen on this address/host,
 *                   otherwise, server will listen on all local addresses.
 * @param port       The network port number to bind to the engine.
 * @param tlsParams  The tls server parameters. Cannot be null.
 * @throws IOException
 * @throws GeneralSecurityException
 */
public void setTLSServerParametersForPort(
  String host,
  int port,
  TLSServerParameters tlsParams) throws GeneralSecurityException, IOException {
  if (tlsParams == null) {
    throw new IllegalArgumentException("tlsParams cannot be null");
  }
  JettyHTTPServerEngine ref = retrieveJettyHTTPServerEngine(port);
  if (null == ref) {
    getOrCreate(this, host, port, tlsParams);
  } else {
    if (ref.getConnector() != null && ref.getConnector().isRunning()) {
      throw new IOException("can't set the TLS params on the opened connector");
    }
    ref.setTlsServerParameters(tlsParams);
  }
}

/**
 * This call sets TLSServerParameters for a JettyHTTPServerEngine
 * that will be subsequently created. It will not alter an engine
 * that has already been created for that network port.
 * @param host       if not null, server will listen on this address/host,
 *                   otherwise, server will listen on all local addresses.
 * @param port       The network port number to bind to the engine.
 * @param tlsParams  The tls server parameters. Cannot be null.
 * @throws IOException
 * @throws GeneralSecurityException
 */
public void setTLSServerParametersForPort(
  String host,
  int port,
  TLSServerParameters tlsParams) throws GeneralSecurityException, IOException {
  if (tlsParams == null) {
    throw new IllegalArgumentException("tlsParams cannot be null");
  }
  JettyHTTPServerEngine ref = retrieveJettyHTTPServerEngine(port);
  if (null == ref) {
    getOrCreate(this, host, port, tlsParams);
  } else {
    if (ref.getConnector() != null && ref.getConnector().isRunning()) {
      throw new IOException("can't set the TLS params on the opened connector");
    }
    ref.setTlsServerParameters(tlsParams);
  }
}

/**
 * This call sets TLSServerParameters for a JettyHTTPServerEngine
 * that will be subsequently created. It will not alter an engine
 * that has already been created for that network port.
 * @param host       if not null, server will listen on this address/host, 
 *                   otherwise, server will listen on all local addresses.
 * @param port       The network port number to bind to the engine.
 * @param tlsParams  The tls server parameters. Cannot be null.
 * @throws IOException 
 * @throws GeneralSecurityException 
 */
public void setTLSServerParametersForPort(
  String host,
  int port, 
  TLSServerParameters tlsParams) throws GeneralSecurityException, IOException {
  if (tlsParams == null) {
    throw new IllegalArgumentException("tlsParams cannot be null");
  }
  JettyHTTPServerEngine ref = retrieveJettyHTTPServerEngine(port);
  if (null == ref) {
    getOrCreate(this, host, port, tlsParams);
  } else {
    if (ref.getConnector() != null && ref.getConnector().isRunning()) {
      throw new IOException("can't set the TLS params on the opened connector");
    }
    ref.setTlsServerParameters(tlsParams);            
  }
}

else if (getConnector().isRunning())
    if (getConnector().isRunning())
      LOG.warn(e);
    else

else if (getConnector().isRunning())
    if (getConnector().isRunning())
      LOG.warn(e);
    else

else if (getConnector().isRunning())
    if (getConnector().isRunning())
      LOG.warn(e);
    else