null pointer at org.springframework.beans.PropertyEditorRegistrySupport

最近搭一个spring+junit4单元测试时出现：null pointer at org.springframework.beans.PropertyEditorRegistrySupport 错误 

Error
while creating bean: Instantiation of bean failed; nested exception is java.lang.ExceptionInInitializerError

原因是在创建userlibrary时，勾选了 added to the boot class path ..取消勾选即可。