The meaning or possible cause of "invalid method hash" exceptions is a somewhat frequently-asked RMI question, and it applies to Jini ERI as well, with the use of net.jini.jeri.BasicDispatcher. It may not be clear that "invalid method hash" means that the client side tried to invoke a remote method (with a given name and descriptor) that the server side does not believe exists on the remote object. This exception detail message should be enhanced to better convey that meaning.

This RFE is analagous to an RFE for Jini ERI (4998350).