500 Servlet Exception

[show] java.lang.ClassCastException: beans.News cannot be cast to beans.NewsCategory

java.lang.ClassCastException: beans.News cannot be cast to beans.NewsCategory
	at factories.NewsCategoryFactory.getCategroyTitle(NewsCategoryFactory.java:306)
	at _jsp._global._public._category__jsp._jspService(global/public/category.jsp:52)
	at _jsp._global._public._category__jsp._jspService(_category__jsp.java:31)
	at com.caucho.jsp.JavaPage.service(JavaPage.java:64)
	at com.caucho.jsp.Page.pageservice(Page.java:551)
	at com.caucho.server.dispatch.PageFilterChain.doFilter(PageFilterChain.java:194)
	at com.caucho.server.dispatch.ServletInvocation.service(ServletInvocation.java:287)
	at com.caucho.server.webapp.RequestDispatcherImpl.forward(RequestDispatcherImpl.java:267)
	at com.caucho.server.webapp.RequestDispatcherImpl.forward(RequestDispatcherImpl.java:100)
	at org.apache.struts.action.RequestProcessor.doForward(RequestProcessor.java:1085)
	at org.apache.struts.action.RequestProcessor.processForwardConfig(RequestProcessor.java:398)
	at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:241)
	at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
	at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:119)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:96)
	at com.caucho.server.dispatch.ServletFilterChain.doFilter(ServletFilterChain.java:109)
	at com.caucho.server.dispatch.ServletInvocation.service(ServletInvocation.java:287)
	at com.caucho.server.webapp.RequestDispatcherImpl.forward(RequestDispatcherImpl.java:267)
	at com.caucho.server.webapp.RequestDispatcherImpl.forward(RequestDispatcherImpl.java:100)
	at org.tuckey.web.filters.urlrewrite.RewrittenUrl.doRewrite(RewrittenUrl.java:176)
	at org.tuckey.web.filters.urlrewrite.UrlRewriteFilter.doFilter(UrlRewriteFilter.java:728)
	at com.caucho.server.dispatch.FilterFilterChain.doFilter(FilterFilterChain.java:89)
	at filters.URLFilter.doFilter(URLFilter.java:45)
	at com.caucho.server.dispatch.FilterFilterChain.doFilter(FilterFilterChain.java:89)
	at com.caucho.server.webapp.WebAppFilterChain.doFilter(WebAppFilterChain.java:183)
	at com.caucho.server.cache.ProxyCacheFilterChain.doFilter(ProxyCacheFilterChain.java:196)
	at com.caucho.server.webapp.AccessLogFilterChain.doFilter(AccessLogFilterChain.java:95)
	at com.caucho.server.dispatch.ServletInvocation.service(ServletInvocation.java:287)
	at com.caucho.server.hmux.HmuxRequest.handleInvocation(HmuxRequest.java:476)
	at com.caucho.server.hmux.HmuxRequest.handleRequestImpl(HmuxRequest.java:381)
	at com.caucho.server.hmux.HmuxRequest.handleRequest(HmuxRequest.java:347)
	at com.caucho.network.listen.TcpSocketLink.dispatchRequest(TcpSocketLink.java:675)
	at com.caucho.network.listen.TcpSocketLink.handleRequestsImpl(TcpSocketLink.java:637)
	at com.caucho.network.listen.TcpSocketLink.handleRequests(TcpSocketLink.java:588)
	at com.caucho.network.listen.TcpSocketLink$AcceptTask.doTask(TcpSocketLink.java:1175)
	at com.caucho.network.listen.TcpSocketLink$ConnectionReadTask.runThread(TcpSocketLink.java:1108)
	at com.caucho.network.listen.TcpSocketLink$AcceptTask.run(TcpSocketLink.java:1142)
	at com.caucho.env.thread.ResinThread.runTasks(ResinThread.java:182)
	at com.caucho.env.thread.ResinThread.run(ResinThread.java:126)