Looking at section 9.9.2 of : http://opensocial-resources.googlecode.com/svn/spec/0.9/RPC-Protocol.xml#methodSignaturesyou'll see that support for "methodSignatures" is a MUST feature, however I haven't been able to find a reference to this in the java tree.
Is this something that we intend to implement? I'm hoping to re-use java's configuration file for this for consistency. -- Chris