Processor that converts all controllers in request scoped objects :). Just an example.

ControllersMustBeRequestScope.java

package br.com.casadocodigo.loja.infra.spring;

import org.springframework.beans.BeansException;
import org.springframework.beans.factory.annotation.AnnotatedBeanDefinition;
import org.springframework.beans.factory.config.BeanDefinition;
import org.springframework.beans.factory.config.BeanFactoryPostProcessor;
import org.springframework.beans.factory.config.ConfigurableListableBeanFactory;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.type.AnnotationMetadata;
import org.springframework.stereotype.Controller;
import org.springframework.web.context.WebApplicationContext;

@Configuration
public class ControllersMustBeRequestScope implements BeanFactoryPostProcessor {

	@Override
	public void postProcessBeanFactory(
			ConfigurableListableBeanFactory factory) throws BeansException {
		
		for (String beanName : factory.getBeanDefinitionNames()) {
			
			BeanDefinition beanDef = factory.getBeanDefinition(beanName);
			if(beanDef instanceof AnnotatedBeanDefinition){
				AnnotatedBeanDefinition annotatedBeanDefinition = (AnnotatedBeanDefinition) beanDef;
				AnnotationMetadata metadata = annotatedBeanDefinition.getMetadata();
				if(metadata.hasAnnotation(Controller.class.getName())){
					beanDef.setScope(WebApplicationContext.SCOPE_REQUEST);
				}
			}

		}
	}

}