code: @Override
      public ManagedConnection createManagedConnection( Subject subject,
                                                        ConnectionRequestInfo cxRequestInfo ) throws ResourceException {
          return new JcrManagedConnection(this, (JcrConnectionRequestInfo)cxRequestInfo);
      }
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