This requires upgrade to protostream 3.0.0.Alpha6
Please note this needs productization of protostream 3.0.0.Alpha6. PR for jdg-6.4.x available here: https://github.com/infinispan/jdg/pull/435
protostream 3.0.0.Alpha6-redhat-1 has been built https://brewweb.devel.redhat.com/buildinfo?buildID=411341
PR: https://github.com/infinispan/jdg/pull/435