The Spring approach to HTTP Remoting allows clients to communicate with the Spring-hosted server code via HTTP without the client code requiring any knowledge of HTTP being used. All the RPC calls are handled by Spring Remoting in case of Direct RMI port block.

RMI over HTTP tunneling for Windchill client is not supported as the sun.rmi.transport.proxy package is removed for Java 11 and later. However, a similar functionality is supported for Java 9 and later using Spring Remoting. Spring Remoting has RMI mechanism to communicate Java serialized object between client and server. If Java 11 is used and RMI port is blocked, the flow goes to Spring Remoting. Sprint Remoting uses HTTP post request to transmit Java serialized object.