invalid characters in schema for inner classes

[mihn]

Hey,
I'm generating Avro Schema for POJO that uses inner classes and because of that namespace field contains $, which is a character not allowed by Avro schema. I think substituting that with . is a good way to solve the issue.

{ "type" : "record", "name" : "TestImpl", "namespace" : "package.Test$", "fields" : [ ...] }
Thank you,