public void setCustomFieldMapper(CustomFieldMapper customFieldMapper) {
        this.customFieldMapper = customFieldMapper;
    }
Registers a {@link CustomFieldMapper} for the mapper.
<p>
By default, no custom field mapper is registered.

@param customFieldMapper custom field mapper to be registered for the mapper.
dozer-integrations/dozer-spring-support/dozer-spring4/src/main/java/com/github/dozermapper/spring/DozerBeanMapperFactoryBean.java