BeanPostProcessor with @Bean annotation not working

[arunpjohny]

I'm trying to create a `BeanPostProcessor` for registering some values to a Map.

The `BeanPostProcessor` works file if I'm create the bean instance via xml definition, but I change the bean definition to `@Configuration` class it is not working.

PostProcessor

public class InstantiationTracingBeanPostProcessor implements BeanPostProcessor {
    
      public Object postProcessBeforeInitialization(Object bean, String beanName) throws BeansException {
          return bean;
      }

      public Object postProcessAfterInitialization(Object bean, String beanName) throws BeansException {
          System.out.println("Bean '" + beanName );
          return bean;
      }
    }

Bean Configuration

    import org.springframework.beans.factory.annotation.Qualifier;
    import org.springframework.context.annotation.Bean;

    @org.springframework.context.annotation.Configuration
    public class Configuration {
        @Bean
        public @Qualifier("InstantiationTracingBeanPostProcessor")
        InstantiationTracingBeanPostProcessor activitiConfigurationBeanPostProcessor() {
            return new InstantiationTracingBeanPostProcessor();
        }
    }

Component scan Configuration

<context:component-scan base-package="xyz.config"/>
    <context:annotation-config/>

The application just hangs if I use the above configuration. But if I use xml based configuration as given below it works fine.

<bean class="xyz.bean.InstantiationTracingBeanPostProcessor"/>

I'm using spring 3.1.0.
What am I doing wrong here?

[Marten Deinum]

THe Bean(Factory)PostProcessor should be declared as a static bean (static method) not as a normal method.

[arunpjohny]

@Martin, Thank you for your time

Can you what you mean by static bean? The documentation does not say anything about this.

[Marten Deinum]

Thought that was pretty clear.

THe Bean(Factory)PostProcessor should be declared as a static bean (static method) not as a normal method.

@Configuration
public class Configuration {
  @Bean 
  public static InstantiationTracingBeanPostProcessor activitiConfigurationBeanPostProcessor() {
    return new InstantiationTracingBeanPostProcessor();
  }
}

There is a difference in processing, basically a bean without static is treated as a FactoryBean which takes part in the container/bean lifecycle. Whereas static methods aren't treated as factory beans (at least not in the sense as a factory bean normally would).

[arunpjohny]

@Marten

Thank you and Happy New Year