Going to http://127.0.0.1:8080/admin/ in tomcat5 gives the following error:

28-May-07 11:57:48 AM org.apache.catalina.authenticator.FormAuthenticator
forwardToLoginPage
WARNING: Unexpected error forwarding to login page
javax.servlet.ServletException: org.apache.struts.util.RequestUtils
   at
org.apache.jasper.runtime.PageContextImpl.doHandlePageException(jasper5-runtime-5.5.23.jar.so)
   at
org.apache.jasper.runtime.PageContextImpl.handlePageException(jasper5-runtime-5.5.23.jar.so)
   at admin.login_jsp._jspService(catalina-admin-5.5.23.jar.so)
   at org.apache.jasper.runtime.HttpJspBase.service(jasper5-runtime-5.5.23.jar.so)
   at javax.servlet.http.HttpServlet.service(tomcat5-servlet-2.4-api-5.5.23.jar.so)
   at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(catalina-5.5.23.jar.so)
   at
org.apache.catalina.core.ApplicationFilterChain.doFilter(catalina-5.5.23.jar.so)
   at org.apache.catalina.core.ApplicationDispatcher.invoke(catalina-5.5.23.jar.so)
   at
org.apache.catalina.core.ApplicationDispatcher.processRequest(catalina-5.5.23.jar.so)
   at
org.apache.catalina.core.ApplicationDispatcher.doForward(catalina-5.5.23.jar.so)
   at org.apache.catalina.core.ApplicationDispatcher.forward(catalina-5.5.23.jar.so)
   at
org.apache.catalina.authenticator.FormAuthenticator.forwardToLoginPage(catalina-5.5.23.jar.so)
   at
org.apache.catalina.authenticator.FormAuthenticator.authenticate(catalina-5.5.23.jar.so)
   at
org.apache.catalina.authenticator.AuthenticatorBase.invoke(catalina-5.5.23.jar.so)
   at org.apache.catalina.core.StandardHostValve.invoke(catalina-5.5.23.jar.so)
   at org.apache.catalina.valves.ErrorReportValve.invoke(catalina-5.5.23.jar.so)
   at org.apache.catalina.core.StandardEngineValve.invoke(catalina-5.5.23.jar.so)
   at org.apache.catalina.connector.CoyoteAdapter.service(catalina-5.5.23.jar.so)
   at org.apache.coyote.http11.Http11Processor.process(tomcat-http-5.5.23.jar.so)
   at
org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(tomcat-http-5.5.23.jar.so)
   at
org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(tomcat-util-5.5.23.jar.so)
   at
org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(tomcat-util-5.5.23.jar.so)
   at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(tomcat-util-5.5.23.jar.so)
   at java.lang.Thread.run(libgcj.so.8rh)