Web 中的安全约束.xml未应用于具有文件扩展名的 URL 模式

我在 Web 中输入了以下安全约束.xml。我的目标是 XML 文件位于公共区域。这适用于文件夹。但是，url模式似乎不起作用。有什么想法吗？/images/**.xml

    <security-constraint>
        <web-resource-collection>
            <web-resource-name>Public Area</web-resource-name>
            <url-pattern>/xyz</url-pattern>
            <url-pattern>/images/*</url-pattern>
            <url-pattern>/yyz/*</url-pattern>
            <url-pattern>*.xml</url-pattern>
        </web-resource-collection>
    </security-constraint>

    <security-constraint>
        <web-resource-collection>
            <web-resource-name>Super User Area</web-resource-name>
            <url-pattern>/test/list1</url-pattern>
            <url-pattern>/test/list2</url-pattern>
            <url-pattern>/test/list3</url-pattern>
            <url-pattern>/test/admin.html</url-pattern>
        </web-resource-collection>
        <auth-constraint>
            <role-name>SUPER_USER</role-name>
        </auth-constraint>
    </security-constraint>

    <security-constraint>
        <web-resource-collection>
            <web-resource-name>Protected Area</web-resource-name>
            <url-pattern>/*</url-pattern>
        </web-resource-collection>
        <auth-constraint>
            <role-name>ADMIN</role-name>
            <role-name>END_USER</role-name>
        </auth-constraint>
    </security-constraint>


    <security-role>
        <description>Super User</description>
        <role-name>SUPER_USER</role-name>
    </security-role>
    <security-role>
        <description>Admin User</description>
        <role-name>ADMIN</role-name>
    </security-role>
    <security-role>
        <description>End User</description>
        <role-name>END_USER</role-name>
    </security-role>