gistfile1.txt

// java
public class User {
  private String username;
  private String email;
}

@POST
register(User user)

// json send
{"username":"olamy","fullName":"olivier lamy","email":"[email protected]"}

cxf stack trace:

[javax.xml.bind.UnmarshalException: unexpected element (uri:"", local:"username"). Expected elements are <{}user>]