What is the purpose of KeyProperty Annotation annotation?

1.	What is the purpose of KeyProperty Annotation annotation?
Answer» This annotation sets the KeyProperty for type conversion. The KeyProperty annotation must be applied at field or method level. KeyProperty( value = "userName" )protected List<User> users = null;

Answer»

This annotation sets the KeyProperty for type conversion. The KeyProperty annotation must be applied at field or method level.

KeyProperty( value = "userName" )protected List<User> users = null;

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