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When using fastJson parsing report: create instance error

After careful inspection, the fields in the declaration class are consistent with the fields returned by the server. Why does it report an error?

Find the answer online if there is an embedded situation:

The code is as follows:

public class UserAuthCenterEntity{
     private DataBean data;

	 The set and get methods are omitted.  .  .  .  .
			
     public class DataBean {
          private String name;
          private String type;
          private String url;
          private String status;

		 The set and get methods are omitted.  .  .  .  .
     }
 }

Solution: DataBean is nested in UserAuthCenterEntity. We need to declare the embedded class static attribute, and the code is as follows:

public class UserAuthCenterEntity{
     private DataBean data;

	 The set and get methods are omitted.  .  .  .  .
			
     public static class DataBean {
          private String name;
          private String type;
          private String url;
          private String status;

		 The set and get methods are omitted.  .  .  .  .
     }
 }