gRPC spring-boot-starter can not bind #GRpcGlobalInterceptor? - annotations

Question

I m using
<dependency>
<groupId>org.lognet</groupId>
<artifactId>grpc-spring-boot-starter</artifactId>
<version>2.1.4</version>
<exclusions>
<exclusion>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>io.zipkin.brave</groupId>
<artifactId>brave-instrumentation-grpc</artifactId>
<version>4.13.1</version>
</dependency>
<dependency>
<groupId>io.zipkin.brave</groupId>
<artifactId>brave</artifactId>
<version>4.13.1</version>
</dependency>
and I want to use brave-instrumentation-grpc monitor my grpc server application. So I followed advice below:
https://github.com/LogNet/grpc-spring-boot-starter#interceptors-support
https://github.com/openzipkin/brave/tree/master/instrumentation/grpc
#Configuration
public class GrpcFilterConfig{
#GRpcGlobalInterceptor
#Bean
public ServerInterceptor globalInterceptor(){
Tracing tracing = Tracing.newBuilder().build();
GrpcTracing grpcTracing = GrpcTracing.create(tracing);
return grpcTracing.newServerInterceptor();
}
}
The question is : The GlobalInterceptor i defined does not bind to grpcserver.
debug deep insde the GRpcServerRunner.class, it seems that the code does not return beansWithAnnotation
Map<String, Object> beansWithAnnotation = this.applicationContext.getBeansWithAnnotation(annotationType);
beansWithAnnotation is null.
Is there something wrong with my usage?