Documenting JSON-RPC endpoints

We have an extensive Java API that's exposed as JSON-RPC endpoints on our server. The problem is that the API documentation currently has to be duplicated in Javadoc and JSON-RPC API. Does a开发者_JAVA技巧nybody know of a tool or a framework that can automate the process of extracting Javadoc to be used for a JSON-RPC API documentation?

Our JSON-RPC framework is very much homegrown. What I am looking for is anything that will let me parse the javadocs so that I can include the Javadoc snippets in my API docs in a meaningful way.