Not able to Pause Spring Kafka Container

I want to pause the Kafka Listener.

1. I call http://localhost:8080/pause to the pause the container
2. I send data on the topic.
3. Consumer starts consuming the message

I expected that consumer would be paused but message is still being read from Kafka topic. How can i pause the consumer? I am using 2.5.0 (Spring Boot Parent)

     @KafkaListener(id="foo" ,topics = "mytopic-3", concurrency = "3", groupId = "mytopic-1-groupid")
        

@Autowired
    private KafkaListenerEndpointRegistry kafkaListenerEndpointRegistry;
        
          @GetMapping("/pause")
            public void pause(  )
            {
                
                System.out.println(" Pausing Kafka Listener");
                kafkaListenerEndpointRegistry.getListenerContainer("foo").pause();
            }
         
        
          @Configuration
    @EnableKafka
    public class KafkaConsumerConfig implements KafkaListenerConfigurer {
        
        
        @Autowired
        private LocalValidatorFactoryBean validator;
        
       
        @Override
        public void configureKafkaListeners(KafkaListenerEndpointRegistrar registrar) {
              registrar.setValidator(this.validator);
            
        }