code: import java.io.IOException;
  import org.apache.directory.api.ldap.model.exception.LdapException;
  import org.apache.directory.ldap.client.api.LdapConnection;
  import org.apache.directory.ldap.client.api.LdapNetworkConnection;
  
  public class LdapConnectionDemo {
  
      public static void main(String[] args) throws LdapException, IOException {
          try (LdapConnection connection = new LdapNetworkConnection("localhost", 10389)) {
              connection.bind();
              connection.unBind();
          }
      }
  }
  