500 Servlet Exception

java.lang.NullPointerException
	at _jsp._cn._intercourse._index__jsp._jspService(CN/intercourse/index.jsp:345)
	at com.caucho.jsp.JavaPage.service(JavaPage.java:60)
	at com.caucho.jsp.Page.pageservice(Page.java:570)
	at com.caucho.server.dispatch.PageFilterChain.doFilter(PageFilterChain.java:179)
	at com.xfz.servlet.CharFilter.doFilter(CharFilter.java:19)
	at com.caucho.server.dispatch.FilterFilterChain.doFilter(FilterFilterChain.java:70)
	at com.caucho.server.webapp.WebAppFilterChain.doFilter(WebAppFilterChain.java:173)
	at com.caucho.server.dispatch.ServletInvocation.service(ServletInvocation.java:229)
	at com.caucho.server.hmux.HmuxRequest.handleRequest(HmuxRequest.java:420)
	at com.caucho.server.port.TcpConnection.run(TcpConnection.java:511)
	at com.caucho.util.ThreadPool.runTasks(ThreadPool.java:520)
	at com.caucho.util.ThreadPool.run(ThreadPool.java:442)
	at java.lang.Thread.run(Thread.java:619)

Resin-3.0.22 (built Mon, 13 Nov 2006 09:32:38 PST)