public Map<String, Object> getAnnotatedBeans() {
        Assert.state(annotatedBeans != null, "@GrpcAdvice annotation scanning failed.");
        return annotatedBeans;
    }
A filter for selecting {@code @GrpcExceptionHandler} methods.
grpc-server-spring-boot-starter/src/main/java/net/devh/boot/grpc/server/advice/GrpcAdviceDiscoverer.java