Spring remoting 3.0 vs Spring remoting 2.5

Hi all!

I have application which simply consists of 2 parts:
1. Web application/server on one machine
2. Simple service/client on another machine

Before today both server and client used Spring 2.5.x.
I have just upgraded my server to use Spring 3.0.5.
Client is still using Spring 2.5.x.

Spring remoting HttpInvoker is used for communicating between server and client.

After upgrading server to Spring 3.0.5 I got the following error:

Code:

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org.springframework.remoting.RemoteAccessException: Could not access HTTP invoker remote service at [ip_address:port/remoting/myService]; nested exception is java.lang.IllegalStateException: unsupported protocol: 'ip_address'

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Does anybody know whether Spring Remoting 2.5.x and 3.0.5 are compatible or not?

Thanks!