NullPointerException for accessing rss with un-existed forum_id or topic_id

What steps will reproduce the problem?
1.Visit http://www.andowson.com/rss/forumTopics/4.page
2.
3.

What is the expected output? What do you see instead?
Expected:
An warning of forum does not exist

See instead:
2012-07-13 00:40:05,839 ERROR [ExceptionWriter] - java.lang.NullPointerException
        at net.jforum.view.forum.UserAction.validateLogin(UserAction.java:447)
        at net.jforum.view.forum.UserAction.validateLogin(UserAction.java:562)
        at net.jforum.view.forum.RSSAction.process(RSSAction.java:198)
        at net.jforum.JForum.processCommand(JForum.java:246)
        at net.jforum.JForum.service(JForum.java:228)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
        at net.jforum.util.legacy.clickstream.ClickstreamFilter.doFilter(ClickstreamFilter.java:59)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:225)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
        at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)
        at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:927)
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
        at org.apache.catalina.ha.tcp.ReplicationValve.invoke(ReplicationValve.java:333)
        at org.apache.catalina.ha.session.JvmRouteBinderValve.invoke(JvmRouteBinderValve.java:219)
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)
        at org.apache.coyote.ajp.AjpProcessor.process(AjpProcessor.java:200)
        at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:579)
        at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:310)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
        at java.lang.Thread.run(Unknown Source)

URL is: /rss/forumTopics/4.page
Original issue reported on code.google.com by andow...@gmail.com on 15 Jul 2012 at 3:57
pgshiping / jforum2

NullPointerException for accessing rss with un-existed forum_id or topic_id #39
