AppConfig.class

package reproducer;

import org.springframework.context.MessageSource;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.support.ResourceBundleMessageSource;

@Configuration
@ComponentScan("reproducer")
public class AppConfig {

	@Bean
	public MessageSource messageSource() {
		final ResourceBundleMessageSource messageSource = new ResourceBundleMessageSource();
		messageSource.setBasenames("i18n/messages");
		return messageSource;
	}
	
	@Bean
	public BeanClass beanClass() {
		final BeanClass bean = new BeanClass();
		//...configure bean
		return bean;
	}
}