The documentation says to set the init-param of the freemarker servlet to:
<init-param>
<param-name>TemplatePath</param-name>
<param-value>/</param-value>
</init-param>

try to change this to
<init-param>
<param-name>TemplatePath</param-name>
<param-value>/WEB-INF/views</param-value>
</init-param>

and the webapp ceases to work with a tomcat resource not found exception

For a quick fix, please modify FreemarkerManager.getTemplateLoader() and add this to the TemplateLoader array being passed to the MultiTemplateLoader constructor:

new FileTemplateLoader(new File(servletContext.getInitParameter("TemplatePath"))),

hope it helps some.