javax.persistence.OneToMany.orphanRemoval

解决
1. http://blog.csdn.net/ethanq/article/details/6662967
2. http://hi.baidu.com/siasmen/blog/item/7253e954e3abdb55d0090607.html

Weblogic:
1. http://blog.sina.com.cn/s/blog_4f925fc30102dwxv.html

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转载自panyongzheng.iteye.com/blog/1260928