Forum libero

java.lang.reflect.InvocationTargetException
> 	at sun.reflect.GeneratedMethodAccessor468.invoke(Unknown Source)
> 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> 	at java.lang.reflect.Method.invoke(Method.java:616)
> 	at com.forumdeitroll.servlets.MainServlet.doDo(MainServlet.java:185)
> 	at com.forumdeitroll.servlets.MainServlet.doGetPost(MainServlet.java:83)
> 	at com.forumdeitroll.servlets.MainServlet.doGet(MainServlet.java:73)
> 	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 com.forumdeitroll.filters.MainFilter.doFilter(MainFilter.java:83)
> 	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:127)
> 	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:293)
> 	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:859)
> 	at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:602)
> 	at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
> 	at java.lang.Thread.run(Thread.java:636)
> Caused by: java.lang.NumberFormatException: null
> 	at java.lang.Long.parseLong(Long.java:401)
> 	at java.lang.Long.parseLong(Long.java:478)
> 	at com.forumdeitroll.servlets.Messages.editMessage(Messages.java:323)
> 	... 23 more