The Problem is related to Jboss Tools . While generating a new Seam Project, seam-remoting.jar is put into WebContent/WEB-INF/lib, while it should go into
EAR-Librariesto make Remoting work.
Just add seam-remoting.jar (from seam lib directory) as an external jar (Properties- Java EE Module Dependencies) to the
xxx-earproject part. And make sure you
checkthe added jar under Module Dependencies of
xxxparts. This made Seam Remoting work for me.