code: public ManagedConnection createManagedConnection(Subject subject,
        ConnectionRequestInfo cxRequestInfo) throws ResourceException {
      VertxPlatformFactory.instance().getOrCreateVertx(getVertxPlatformConfig(), this);
      return new VertxManagedConnection(this, this.vertx);
    }
docs: Creates a new physical connection to the underlying EIS resource manager.
  
  @param subject
  Caller's security information
  @param cxRequestInfo
  Additional resource adapter specific connection request
  information
  @throws ResourceException
  generic exception
  @return ManagedConnection instance