principal argument cannot be null
具体报错信息如下： 代码： SimpleAuthenticationInfo info = new SimpleAuthenticationInfo(userInfo, password, getName()); 创建Shiro 存储主体（Subject）身份认证信息发生的报错，于是点进源码发现: 就是这抛出的异常 后检查自己代码发现，在给userinfo对象赋值时，给成了null导致，shiro
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相关文章
- 1. leaseEndDate: java.sql.Date cannot be assigned from null
- 2. React Native Native module cannot be null!
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- 4. java.lang.IllegalArgumentException: node to traverse cannot be null!
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- 9. java.lang.IllegalArgumentException: Wildcard string cannot be null or empty.
- 10. Msg 15138 The database principal owns a schema in the database, and cannot be dropped.