请教compass如何映射java.util.Map类型

现在实体设计有需要用到java.util.Map,但是在这个属性加@SearchableComponent就报but no class mapping was found for [java.util.Map],具体的信息如下:

Caused by: org.compass.core.mapping.MappingException: Tried to resolve ref-alias for property [articles] in alias [test], but no class mapping was found for [java.util.Map]

这个错误是因为compass不支持map类型吗?有什么思路可以解决,谢谢!

我的配置如下:
@SearchableComponent
@OneToMany(mappedBy="test")
@MapKey(name="title")
public Map<String, Article> getArticles() {
return articles;
}

ERROR BasicPropertyAccessor.get(136) | IllegalArgumentException in class [test.User], getter method of property [id]

现在启动是这样的错,是什么造成的呢?

自己写了一个converter就行了.哈哈.