Hi again...

We have problems with our webpage, suddenly it doens't load and an error
message appears (I can't told you the exact error showed cause I
couldn't see it, but I have to believe the boss... ). If we restart
Tomcat then it turns on again working correctly! We have Tomcat 6 like a
service on Windows 2003 Server.

We have checked logs but we don't know java and we don't know if there
are applications errors of tomcat errors. We have a lot of messages in
catalina but we don't known what it means :( Here you are some of them.
We have copied too some messages of stdout at the bottom

26-Feb-2009 10:16:42 org.apache.catalina.core.ApplicationDispatcher invoke
SEVERE: Servlet.service() for servlet action threw exception
java.lang.NumberFormatException: null
    at java.lang.Long.parseLong(Unknown Source)
    at java.lang.Long.parseLong(Unknown Source)
    at
se.purpur.roach.web.pub.action.PublicArticleAction.execute(PublicArticleAction.java:49)
    at
org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:484)
    at
org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:274)
    at
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482)
    at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:507)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
    at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
    at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at
org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:630)
    at
org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:436)
    at
org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:374)
    at
org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:302)
    at
org.apache.struts.action.RequestProcessor.doForward(RequestProcessor.java:1069)
    at
org.apache.struts.tiles.TilesRequestProcessor.doForward(TilesRequestProcessor.java:274)
    at
org.apache.struts.action.RequestProcessor.processForwardConfig(RequestProcessor.java:455)
    at
org.apache.struts.tiles.TilesRequestProcessor.processForwardConfig(TilesRequestProcessor.java:320)
    at
org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:279)
    at
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482)
    at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:507)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
    at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
    at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at
org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:630)
    at
org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:436)
    at
org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:374)
    at
org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:302)
    at
se.flera.servlet.HumanReadableLinksServlet.doGet(HumanReadableLinksServlet.java:67)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
    at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
    at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at
se.flera.servlet.LinkCallbackFilter.doFilter(LinkCallbackFilter.java:47)
    at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
    at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at
com.theotherus.persistance.HibernateOpenSessionInView.doFilter(HibernateOpenSessionInView.java:35)
    at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
    at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at
com.theotherus.persistance.HibernateOpenSessionInView.doFilter(HibernateOpenSessionInView.java:35)
    at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
    at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at
org.securityfilter.filter.SecurityFilter.doFilter(SecurityFilter.java:188)
    at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
    at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at
se.purpur.roach.web.locale.LocaleFilter.doFilter(LocaleFilter.java:54)
    at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
    at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at
com.theotherus.util.CharEncodingFilter.doFilter(CharEncodingFilter.java:29)
    at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
    at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
    at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
    at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
    at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
    at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
    at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
    at
org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcessor.java:857)
    at
org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:565)
    at
org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1509)
    at java.lang.Thread.run(Unknown Source)
26-Feb-2009 10:16:42 org.apache.catalina.core.ApplicationDispatcher invoke
SEVERE: Servlet.service() for servlet action threw exception
java.lang.NumberFormatException: null
    at java.lang.Long.parseLong(Unknown Source)
    at java.lang.Long.parseLong(Unknown Source)
    at
se.purpur.roach.web.pub.action.PublicArticleAction.execute(PublicArticleAction.java:49)
    at
org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:484)
    at
org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:274)
    at
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482)
    at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:507)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
    at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
    at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at
org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:630)
    at
org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:436)
    at
org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:374)
    at
org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:302)
    at
org.apache.struts.action.RequestProcessor.doForward(RequestProcessor.java:1069)
    at
org.apache.struts.tiles.TilesRequestProcessor.doForward(TilesRequestProcessor.java:274)
    at
org.apache.struts.action.RequestProcessor.processForwardConfig(RequestProcessor.java:455)
    at
org.apache.struts.tiles.TilesRequestProcessor.processForwardConfig(TilesRequestProcessor.java:320)
    at
org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:279)
    at
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482)
    at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:507)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
    at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
    at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at
org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:630)
    at
org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:436)
    at
org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:374)
    at
org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:302)
    at
se.flera.servlet.HumanReadableLinksServlet.doGet(HumanReadableLinksServlet.java:67)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
    at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
    at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at
se.flera.servlet.LinkCallbackFilter.doFilter(LinkCallbackFilter.java:47)
    at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
    at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at
com.theotherus.persistance.HibernateOpenSessionInView.doFilter(HibernateOpenSessionInView.java:35)
    at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
    at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at
com.theotherus.persistance.HibernateOpenSessionInView.doFilter(HibernateOpenSessionInView.java:35)
    at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
    at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at
org.securityfilter.filter.SecurityFilter.doFilter(SecurityFilter.java:188)
    at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
    at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at
se.purpur.roach.web.locale.LocaleFilter.doFilter(LocaleFilter.java:54)
    at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
    at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at
com.theotherus.util.CharEncodingFilter.doFilter(CharEncodingFilter.java:29)
    at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
    at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
    at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
    at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
    at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
    at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
    at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
    at
org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcessor.java:857)
    at
org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:565)
    at
org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1509)
    at java.lang.Thread.run(Unknown Source)
26-Feb-2009 10:16:42 org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet HumanReadableLinksServlet threw
exception
java.lang.NumberFormatException: null
    at java.lang.Long.parseLong(Unknown Source)
    at java.lang.Long.parseLong(Unknown Source)
    at
se.purpur.roach.web.pub.action.PublicArticleAction.execute(PublicArticleAction.java:49)
    at
org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:484)
    at
org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:274)
    at
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482)
    at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:507)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
    at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
    at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at
org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:630)
    at
org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:436)
    at
org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:374)
    at
org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:302)
    at
org.apache.struts.action.RequestProcessor.doForward(RequestProcessor.java:1069)
    at
org.apache.struts.tiles.TilesRequestProcessor.doForward(TilesRequestProcessor.java:274)
    at
org.apache.struts.action.RequestProcessor.processForwardConfig(RequestProcessor.java:455)
    at
org.apache.struts.tiles.TilesRequestProcessor.processForwardConfig(TilesRequestProcessor.java:320)
    at
org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:279)
    at
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482)
    at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:507)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
    at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
    at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at
org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:630)
    at
org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:436)
    at
org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:374)
    at
org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:302)
    at
se.flera.servlet.HumanReadableLinksServlet.doGet(HumanReadableLinksServlet.java:67)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
    at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
    at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at
se.flera.servlet.LinkCallbackFilter.doFilter(LinkCallbackFilter.java:47)
    at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
    at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at
com.theotherus.persistance.HibernateOpenSessionInView.doFilter(HibernateOpenSessionInView.java:35)
    at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
    at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at
com.theotherus.persistance.HibernateOpenSessionInView.doFilter(HibernateOpenSessionInView.java:35)
    at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
    at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at
org.securityfilter.filter.SecurityFilter.doFilter(SecurityFilter.java:188)
    at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
    at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at
se.purpur.roach.web.locale.LocaleFilter.doFilter(LocaleFilter.java:54)
    at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
    at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at
com.theotherus.util.CharEncodingFilter.doFilter(CharEncodingFilter.java:29)
    at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
    at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
    at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
    at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
    at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
    at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
    at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
    at
org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcessor.java:857)
    at
org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:565)
    at
org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1509)
    at java.lang.Thread.run(Unknown Source)
26-Feb-2009 10:19:18 org.apache.coyote.http11.Http11AprProtocol pause
INFO: Pausing Coyote HTTP/1.1 on http-192.168.100.49-80
26-Feb-2009 10:19:18 org.apache.coyote.ajp.AjpAprProtocol pause
INFO: Pausing Coyote AJP/1.3 on ajp-8009
26-Feb-2009 10:19:19 org.apache.catalina.core.StandardService stop
INFO: Stopping service Catalina
26-Feb-2009 10:19:20 org.apache.catalina.session.StandardSession writeObject
WARNING: Cannot serialize session attribute articleForm for session
948D031E75C6C7F03384305D28EC3D83
java.io.NotSerializableException:
se.purpur.roach.core.sess.ContentTypeProperty
    at java.io.ObjectOutputStream.writeObject0(Unknown Source)
    at java.io.ObjectOutputStream.writeObject(Unknown Source)
    at java.util.ArrayList.writeObject(Unknown Source)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at java.io.ObjectStreamClass.invokeWriteObject(Unknown Source)
    at java.io.ObjectOutputStream.writeSerialData(Unknown Source)
    at java.io.ObjectOutputStream.writeOrdinaryObject(Unknown Source)
    at java.io.ObjectOutputStream.writeObject0(Unknown Source)
    at java.io.ObjectOutputStream.defaultWriteFields(Unknown Source)
    at java.io.ObjectOutputStream.writeSerialData(Unknown Source)
    at java.io.ObjectOutputStream.writeOrdinaryObject(Unknown Source)
    at java.io.ObjectOutputStream.writeObject0(Unknown Source)
    at java.io.ObjectOutputStream.writeObject(Unknown Source)
    at
org.apache.catalina.session.StandardSession.writeObject(StandardSession.java:1517)
    at
org.apache.catalina.session.StandardSession.writeObjectData(StandardSession.java:959)
    at
org.apache.catalina.session.StandardManager.doUnload(StandardManager.java:517)
    at
org.apache.catalina.session.StandardManager.unload(StandardManager.java:463)
    at
org.apache.catalina.session.StandardManager.stop(StandardManager.java:667)
    at
org.apache.catalina.core.StandardContext.stop(StandardContext.java:4519)
    at
org.apache.catalina.core.ContainerBase.removeChild(ContainerBase.java:924)
    at
org.apache.catalina.startup.HostConfig.undeployApps(HostConfig.java:1191)
    at org.apache.catalina.startup.HostConfig.stop(HostConfig.java:1162)
    at
org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:313)
    at
org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:117)
    at org.apache.catalina.core.ContainerBase.stop(ContainerBase.java:1086)
    at org.apache.catalina.core.ContainerBase.stop(ContainerBase.java:1098)
    at org.apache.catalina.core.StandardEngine.stop(StandardEngine.java:448)
    at
org.apache.catalina.core.StandardService.stop(StandardService.java:584)
    at org.apache.catalina.core.StandardServer.stop(StandardServer.java:744)
    at org.apache.catalina.startup.Catalina.stop(Catalina.java:628)
    at org.apache.catalina.startup.Catalina.start(Catalina.java:603)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:288)
    at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413)
26-Feb-2009 10:19:20 org.apache.coyote.http11.Http11AprProtocol destroy
INFO: Stopping Coyote HTTP/1.1 on http-192.168.100.49-80
26-Feb-2009 10:19:20 org.apache.coyote.ajp.AjpAprProtocol destroy
INFO: Stopping Coyote AJP/1.3 on ajp-8009

These are the last lines of stdout before restarting:

10:09:00,474  INFO LocaleFilter:61 - Set default locale [en_EN].
10:09:00,490  INFO LocaleFilter:73 - Added supported locale [bg_BG].
10:09:00,490  INFO LocaleFilter:73 - Added supported locale [hr_HR].
10:09:00,490  INFO LocaleFilter:73 - Added supported locale [en_EN].
10:09:00,490  INFO LocaleFilter:73 - Added supported locale [fi_FI].
10:09:00,490  INFO LocaleFilter:73 - Added supported locale [fr_FR].
10:09:00,490  INFO LocaleFilter:73 - Added supported locale [de_DE].
10:09:00,490  INFO LocaleFilter:73 - Added supported locale [hu_HU].
10:09:00,490  INFO LocaleFilter:73 - Added supported locale [it_IT].
10:09:00,490  INFO LocaleFilter:73 - Added supported locale [no_NO].
10:09:00,490  INFO LocaleFilter:73 - Added supported locale [pt_PT].
10:09:00,490  INFO LocaleFilter:73 - Added supported locale [ro_RO].
10:09:00,490  INFO LocaleFilter:73 - Added supported locale [ru_RU].
10:09:00,490  INFO LocaleFilter:73 - Added supported locale [es_ES].
10:09:00,490  INFO LocaleFilter:73 - Added supported locale [sv_SE].
10:09:00,490  INFO LocaleFilter:73 - Added supported locale [cz_CZ].
10:09:03,865  INFO LocaleFilter:61 - Set default locale [en_EN].
10:09:03,880  INFO LocaleFilter:73 - Added supported locale [bg_BG].
10:09:03,880  INFO LocaleFilter:73 - Added supported locale [hr_HR].
10:09:03,880  INFO LocaleFilter:73 - Added supported locale [en_EN].
10:09:03,880  INFO LocaleFilter:73 - Added supported locale [fi_FI].
10:09:03,880  INFO LocaleFilter:73 - Added supported locale [fr_FR].
10:09:03,880  INFO LocaleFilter:73 - Added supported locale [de_DE].
10:09:03,880  INFO LocaleFilter:73 - Added supported locale [hu_HU].
10:09:03,880  INFO LocaleFilter:73 - Added supported locale [it_IT].
10:09:03,880  INFO LocaleFilter:73 - Added supported locale [no_NO].
10:09:03,880  INFO LocaleFilter:73 - Added supported locale [pt_PT].
10:09:03,880  INFO LocaleFilter:73 - Added supported locale [ro_RO].
10:09:03,880  INFO LocaleFilter:73 - Added supported locale [ru_RU].
10:09:03,880  INFO LocaleFilter:73 - Added supported locale [es_ES].
10:09:03,880  INFO LocaleFilter:73 - Added supported locale [sv_SE].
10:09:03,880  INFO LocaleFilter:73 - Added supported locale [cz_CZ].
10:09:07,068  INFO LocaleFilter:61 - Set default locale [en_EN].
10:09:07,084  INFO LocaleFilter:73 - Added supported locale [bg_BG].
10:09:07,084  INFO LocaleFilter:73 - Added supported locale [hr_HR].
10:09:07,084  INFO LocaleFilter:73 - Added supported locale [en_EN].
10:09:07,084  INFO LocaleFilter:73 - Added supported locale [fi_FI].
10:09:07,084  INFO LocaleFilter:73 - Added supported locale [fr_FR].
10:09:07,084  INFO LocaleFilter:73 - Added supported locale [de_DE].
10:09:07,084  INFO LocaleFilter:73 - Added supported locale [hu_HU].
10:09:07,084  INFO LocaleFilter:73 - Added supported locale [it_IT].
10:09:07,084  INFO LocaleFilter:73 - Added supported locale [no_NO].
10:09:07,084  INFO LocaleFilter:73 - Added supported locale [pl_PL].
10:09:07,084  INFO LocaleFilter:73 - Added supported locale [pt_PT].
10:09:07,084  INFO LocaleFilter:73 - Added supported locale [ro_RO].
10:09:07,084  INFO LocaleFilter:73 - Added supported locale [ru_RU].
10:09:07,084  INFO LocaleFilter:73 - Added supported locale [es_ES].
10:09:07,084  INFO LocaleFilter:73 - Added supported locale [sv_SE].
10:09:07,084  INFO LocaleFilter:73 - Added supported locale [cz_CZ].
10:09:10,193  INFO LocaleFilter:61 - Set default locale [en_EN].
10:09:10,209  INFO LocaleFilter:73 - Added supported locale [bg_BG].
10:09:10,209  INFO LocaleFilter:73 - Added supported locale [hr_HR].
10:09:10,209  INFO LocaleFilter:73 - Added supported locale [en_EN].
10:09:10,209  INFO LocaleFilter:73 - Added supported locale [fi_FI].
10:09:10,209  INFO LocaleFilter:73 - Added supported locale [fr_FR].
10:09:10,209  INFO LocaleFilter:73 - Added supported locale [de_DE].
10:09:10,209  INFO LocaleFilter:73 - Added supported locale [hu_HU].
10:09:10,209  INFO LocaleFilter:73 - Added supported locale [it_IT].
10:09:10,209  INFO LocaleFilter:73 - Added supported locale [no_NO].
10:09:10,209  INFO LocaleFilter:73 - Added supported locale [pt_PT].
10:09:10,209  INFO LocaleFilter:73 - Added supported locale [ro_RO].
10:09:10,209  INFO LocaleFilter:73 - Added supported locale [ru_RU].
10:09:10,209  INFO LocaleFilter:73 - Added supported locale [es_ES].
10:09:10,209  INFO LocaleFilter:73 - Added supported locale [sv_SE].
10:09:10,209  INFO LocaleFilter:73 - Added supported locale [cz_CZ].
javax.servlet.ServletException: java.lang.NumberFormatException: null
    at
org.apache.struts.action.RequestProcessor.processException(RequestProcessor.java:545)
    at
org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:486)
    at
org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:274)
    at
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482)
    at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:507)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
    at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
    at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at
org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:630)
    at
org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:436)
    at
org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:374)
    at
org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:302)
    at
org.apache.struts.action.RequestProcessor.doForward(RequestProcessor.java:1069)
    at
org.apache.struts.tiles.TilesRequestProcessor.doForward(TilesRequestProcessor.java:274)
    at
org.apache.struts.action.RequestProcessor.processForwardConfig(RequestProcessor.java:455)
    at
org.apache.struts.tiles.TilesRequestProcessor.processForwardConfig(TilesRequestProcessor.java:320)
    at
org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:279)
    at
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482)
    at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:507)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
    at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
    at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at
org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:630)
    at
org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:436)
    at
org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:374)
    at
org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:302)
    at
se.flera.servlet.HumanReadableLinksServlet.doGet(HumanReadableLinksServlet.java:67)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
    at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
    at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at
se.flera.servlet.LinkCallbackFilter.doFilter(LinkCallbackFilter.java:47)
    at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
    at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at
com.theotherus.persistance.HibernateOpenSessionInView.doFilter(HibernateOpenSessionInView.java:35)
    at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
    at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at
com.theotherus.persistance.HibernateOpenSessionInView.doFilter(HibernateOpenSessionInView.java:35)
    at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
    at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at
org.securityfilter.filter.SecurityFilter.doFilter(SecurityFilter.java:188)
    at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
    at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at
se.purpur.roach.web.locale.LocaleFilter.doFilter(LocaleFilter.java:54)
    at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
    at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at
com.theotherus.util.CharEncodingFilter.doFilter(CharEncodingFilter.java:29)
    at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
    at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
    at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
    at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
    at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
    at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
    at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
    at
org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcessor.java:857)
    at
org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:565)
    at
org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1509)
    at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.NumberFormatException: null
    at java.lang.Long.parseLong(Unknown Source)
    at java.lang.Long.parseLong(Unknown Source)
    at
se.purpur.roach.web.pub.action.PublicArticleAction.execute(PublicArticleAction.java:49)
    at
org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:484)
    ... 59 more
javax.servlet.ServletException: javax.servlet.ServletException:
java.lang.NumberFormatException: null
    at
com.theotherus.persistance.HibernateOpenSessionInView.doFilter(HibernateOpenSessionInView.java:62)
    at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
    at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at
com.theotherus.persistance.HibernateOpenSessionInView.doFilter(HibernateOpenSessionInView.java:35)
    at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
    at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at
org.securityfilter.filter.SecurityFilter.doFilter(SecurityFilter.java:188)
    at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
    at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at
se.purpur.roach.web.locale.LocaleFilter.doFilter(LocaleFilter.java:54)
    at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
    at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at
com.theotherus.util.CharEncodingFilter.doFilter(CharEncodingFilter.java:29)
    at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
    at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
    at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
    at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
    at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
    at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
    at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
    at
org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcessor.java:857)
    at
org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:565)
    at
org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1509)
    at java.lang.Thread.run(Unknown Source)
Caused by: javax.servlet.ServletException:
java.lang.NumberFormatException: null
    at
org.apache.struts.action.RequestProcessor.processException(RequestProcessor.java:545)
    at
org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:486)
    at
org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:274)
    at
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482)
    at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:507)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
    at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
    at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at
org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:630)
    at
org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:436)
    at
org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:374)
    at
org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:302)
    at
org.apache.struts.action.RequestProcessor.doForward(RequestProcessor.java:1069)
    at
org.apache.struts.tiles.TilesRequestProcessor.doForward(TilesRequestProcessor.java:274)
    at
org.apache.struts.action.RequestProcessor.processForwardConfig(RequestProcessor.java:455)
    at
org.apache.struts.tiles.TilesRequestProcessor.processForwardConfig(TilesRequestProcessor.java:320)
    at
org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:279)
    at
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482)
    at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:507)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
    at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
    at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at
org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:630)
    at
org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:436)
    at
org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:374)
    at
org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:302)
    at
se.flera.servlet.HumanReadableLinksServlet.doGet(HumanReadableLinksServlet.java:67)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
    at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
    at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at
se.flera.servlet.LinkCallbackFilter.doFilter(LinkCallbackFilter.java:47)
    at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
    at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at
com.theotherus.persistance.HibernateOpenSessionInView.doFilter(HibernateOpenSessionInView.java:35)
    ... 24 more
Caused by: java.lang.NumberFormatException: null
    at java.lang.Long.parseLong(Unknown Source)
    at java.lang.Long.parseLong(Unknown Source)
    at
se.purpur.roach.web.pub.action.PublicArticleAction.execute(PublicArticleAction.java:49)
    at
org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:484)
    ... 59 more

We hope someone could explain us what it means.

Thanks a lot!

Laura

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