Description
Currently, the parameter string parser messes up completely when you attempt to annotate a parameter type, e.g.
@param @NotNull String myParamIn the generated code, the generator mostly uses the annotation without the type in place of the type, and the type where you would expect the variable name.
Annotated parameters would be really useful to automatically fill and check the parameters, though only if the annotations would actually be exposed by the API. Currently, we only get the raw types with getParamInfo(). I would propose just returning the complete java.lang.reflect.Parameter object instead of Parameter.getType(), maybe in a method getExtendedParamInfo(). That would, as a bonus, also allow you to receive generic types properly using Parameter.getParameterizedType().
While at the topic, further information not accessible through the API is whether a parameter has a default value. From on-demand compilation this should be pretty simple to extract, but to be accesible only through already compiled classes the information could be encoded as a static field in the generated java class.