hessian read got an unexpect code: 0x63

I am receiving an error: "hessian read got an unexpect code: 0x63" when parsing the response from a hessian service... The response body is here: https://www.dropbox.com/s/ujj9y6xigz3i589/hessian.data?dl=0
I believe this is a bug. I have tried to figure out why, but have not been successful. Any chance this can be fixed in the near future?