Fileupload is currently configured to catch exceptions and provide error messages regarding any problems found during the file upload. Unfortunately, the seam filter is also catching these exceptions and trying to redirect to a debug page. The appropriate faces message is generated for the component (eg: file is too large, etc), but the following exception also occurs on the server log:-
09:30:59,912 ERROR [[uploadServlet]] Servlet.service() for servlet uploadServlet threw exception
java.lang.IllegalArgumentException: no file extension in servlet path: /uploadHtml
at org.jboss.seam.mock.MockViewHandler.getActionURL(MockViewHandler.java:45)
at org.jboss.seam.jsf.SeamViewHandler.getActionURL(SeamViewHandler.java:74)
at org.jboss.seam.faces.FacesManager.redirect(FacesManager.java:168)
at org.jboss.seam.faces.Redirect.execute(Redirect.java:154)
at org.jboss.seam.exception.DebugPageHandler.handle(DebugPageHandler.java:32)
at org.jboss.seam.exception.Exceptions.handle(Exceptions.java:76)
at org.jboss.seam.web.ExceptionFilter.endWebRequestAfterException(ExceptionFilter.java:114)
at org.jboss.seam.web.ExceptionFilter.doFilter(ExceptionFilter.java:70)
at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
at org.jboss.seam.web.IdentityFilter.doFilter(IdentityFilter.java:40)
at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
at org.jboss.seam.web.RedirectFilter.doFilter(RedirectFilter.java:45)
at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
at org.jboss.seam.servlet.SeamFilter.doFilter(SeamFilter.java:158)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:235)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:190)
at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:92)
at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.process(SecurityContextEstablishmentValve.java:126)
at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.invoke(SecurityContextEstablishmentValve.java:70)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:158)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:330)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:829)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:598)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
at java.lang.Thread.run(Thread.java:655)