The google protobuf gem has not been updated for jruby in a while and is currently only available in version 3.0.5pre whereas the official protobuf version is 3.18+.
There were a handful of interesting feature changes in between those versions.
The codec should be tested with a newer version of the library and should provide instructions on how to build and use a manually built jruby version of the google-protobuf gem, until the aforementioned issue is resolved in favour of a proper build process.
The google protobuf gem has not been updated for jruby in a while and is currently only available in version 3.0.5pre whereas the official protobuf version is 3.18+. There were a handful of interesting feature changes in between those versions. The codec should be tested with a newer version of the library and should provide instructions on how to build and use a manually built jruby version of the google-protobuf gem, until the aforementioned issue is resolved in favour of a proper build process.