Unable to proxy method because it is final

[jonas]

Hello,

I get for each RPC-Service the following two warnings:

[WARN] Unable to proxy method [public final void
com.google.gwt.user.server.rpc.RemoteServiceServlet.doPost
(javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse)]
because it is final: All calls to this method via a proxy will be
routed directly to the proxy.

[WARN] Unable to proxy method [public final
com.google.gwt.user.server.rpc.SerializationPolicy
com.google.gwt.user.server.rpc.RemoteServiceServlet.getSerializationPolicy
(java.lang.String,java.lang.String)] because it is final: All calls to
this method via a proxy will be routed directly to the proxy.

I'am using spring like in the reference application, the services are
working well except of the warnings. Have someone any idea what I am
doing wrong?

Best regards,
Jonas