cvc-complex-type.2.4.a: Invalid content was found starting with element 'filter-class'. One of '{"

具体问题 错误提示：cvc-complex-type.2.4.a: Invalid content was found starting with element ‘filter-class’. One of ‘{“http://java.sun.com/xml/ns/javaee”:description, “http://java.sun.com/xml/ns/javaee”:display-

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