Hrm. That's strange. I've been using CJ without that warning for awhile. I don't think that this is an issue with CJ. I did upgrade to the latest tarball of soap4r, so maybe that will solve things? What version of ruby are you running on? What does: ruby -r soap/rpc/driver -e 'puts SOAP::Version' say? Chris Mohr wrote: > I'm now experimenting with wsdl2ruby, and struggling a bit. I did still > get the nillable warning when I ran wsdl2ruby, so it must not like the > nillable attribute in the CJ wsdl file