我的struts2应用程序运行正常，我只是不断收到我可能需要或不需要的属性的警告。关于如何摆脱警告的任何建议？
10:17:17,184 WARN OgnlValueStack:45 - Could not find property [org.apache.catalina.jsp_file]
10:17:17,278 WARN OgnlValueStack:45 - Could not find property [templateDir]
10:17:17,294 WARN OgnlValueStack:45 - Could not find property [theme]
10:17:17,387 WARN OgnlValueStack:45 - Could not find property [.freemarker.Request]
10:17:17,387 WARN OgnlValueStack:45 - Could not find property [.freemarker.RequestParameters]
10:17:17,637 WARN OgnlValueStack:45 - Could not find property [select.tin]
10:17:17,762 WARN OgnlValueStack:45 - Could not find property [text]
10:17:17,778 WARN OgnlValueStack:45 - Could not find property [select.year]
10:17:17,778 WARN OgnlValueStack:45 - Could not find property [year]
10:17:17,981 WARN OgnlValueStack:45 - Could not find property [struts.actionMapping]