List converted to List problem ?

Talk User traversal object cast on it. . But my strong turn error. . Is my User and other entities associated with the reasons for it ? Seeking advice. . User and departments Department, Role role has an associated . .
List long this kind
[
[100, a, wl, 81dc9bdb52d04dc20036dbd8313ed055, female , null, null, null, null],
[101, b, admin, 21232f297a57a5a743894a0e4a801fc3, male , null, null, null, null],
[102, c, li, 81dc9bdb52d04dc20036dbd8313ed055, male, 12113131 , 1 ] ,
null, null, null, null, null, null, null
]
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not tried this , the top !
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However, from the point of view you data transfer is certainly not strong , you should write code to turn .
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List your User should also be an array of bars.
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obviously you List taken out of this List is object [] array of how it could be transformed into the User object . List should start removing object [], then traverse object [] array, object [] array object into a User object .
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array to monomer is certainly being given ah.
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landlord , since it is removed object List then there is an array of objects transferred directly into a user object , is clearly wrong.

suggested in the database query, the data acquired , directly assembled into a user object and add it to a List instead of generating Object [] and then add to the List.
last method returns List .

hope useful for you
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obviously you List taken out of this List is object [] array of how it could be transformed into the User object . List should start removing object [], then traverse object [] array, object [] array object into a User object .  

First we resolve this problem
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your user class which do not have those attributes. . Maybe
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User is a physical object. . . Obtained from the database is the Object array. . Object array objects to make User object . . Traversal Object object into another strong user work.
for (int i = 0; i Object ob = list.get (i);
User user = (User) ob ;/ / such a strong turn unworkable

}

I may be associated with other entities in the User 's reason
User attributes:
Long userId;
Depratment department;
Set roles;
String userName;
String loginName;
......
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Thank you . . Problem has been solved. .