...

Suggested design

New public API entities

• ServiceCallContext -  immutable map of custom parameters to be implicitly passed to the service.
• ServiceCallInterceptor  ServiceCallInterceptor  - intercepts service method calls.
• ServiceInterceptorContext -  extended mutable version of caller context (interceptor obtains method call parameters from it and can use it to update the caller context).
• ServiceInterceptException - unchecked exception that is used to highlight the exception that occurred during method interception (not execution).

...