Dozer + Spring: MappingException: Dozer Bean Mapper is already initialized

I am trying to implement Dozer as help for bridge pattern on my current webapp running Spring and Hibernate but I think I am doing something wrong, since trying to use a DozerBeanMapper instance more than once, will give me a MappingException.

Spring config:

@Configuration
public class AppConfig {
  ...
    @Bean
    public DozerBeanMapper dozerBeanMapper() {
        return new DozerBeanMapper();
    }
}

Usage:

@Service
public class FooService {
 @Autowired private DozerBeanMapper mapper;

  public void doSomething() {
    mapper.map(foo, ImmutableFoo.class);
    ...
  }

First time I call this service will work fine, but any further attempt to use it will result in an exception. Can someone please point what I am doing wrong?

Thanks.