To use JSP Tags with our FreeMarker templates, the jspSupportServlet needs to be loaded through the web.xml.

<servlet>
    <servlet-name>jspSupportServlet</serlet-name>
    <servlet-class>org.apache.struts.action2.views.JspSupportServlet.JspSupportServlet</servlet-class>
    <load-on-startup>10</load-on-startup>
</servlet>

The servlet element registers the JspSupportServlet and loads it on startup. FreeMarker obtains the information it needs to render JSP tags from the servlet instance.