@Override
        public <ReqT, RespT> Listener<ReqT> interceptCall(
                final ServerCall<ReqT, RespT> call,
                final Metadata headers,
                final ServerCallHandler<ReqT, RespT> next) {
            return next.startCall(call, headers);
        }
Simple No-Op ServerInterceptor for testing purposes.
tests/src/test/java/net/devh/boot/grpc/test/interceptor/PickupServerInterceptorTest.java