javax.servlet.ServletException at Jboss 7.1 Seam 2.2.1 JSF 1.2 project environment - jsf

Question

We've developed a web application using Jboss 7.1 + Seam 2.2.1.Final + JSF 1.2 + Richfaces 3.3.3.Final and JBoss Maven Integration 1.0 . We've deployed the our .war file to the application server successfully. But one of the .xhtml page we want to a redirect operation after an action has completed. But browser throws the following exception. We've debug the codes and it seems the exception has been occured at the response phase of the seam. Also there isnot any cause of this exception so we could not the main reason of the exception. Is there anyone has an idea??
ERROR [org.jboss.seam.exception.Exceptions] (http-localhost-127.0.0.1-8080-1) handled and logged exception: javax.servlet.ServletException: Servlet execution threw an exception
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:346) [jbossweb-7.0.10.Final.jar:]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248) [jbossweb-7.0.10.Final.jar:]
at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:83) [jboss-seam-2.2.1.Final.jar:2.2.1.Final]
at org.jboss.seam.web.IdentityFilter.doFilter(IdentityFilter.java:40) [jboss-seam-2.2.1.Final.jar:2.2.1.Final]
at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) [jboss-seam-2.2.1.Final.jar:2.2.1.Final]
at org.jboss.seam.web.MultipartFilter.doFilter(MultipartFilter.java:90) [jboss-seam-2.2.1.Final.jar:2.2.1.Final]
at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) [jboss-seam-2.2.1.Final.jar:2.2.1.Final]
at org.jboss.seam.web.ExceptionFilter.doFilter(ExceptionFilter.java:64) [jboss-seam-2.2.1.Final.jar:2.2.1.Final]
at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) [jboss-seam-2.2.1.Final.jar:2.2.1.Final]
at org.jboss.seam.web.RedirectFilter.doFilter(RedirectFilter.java:45) [jboss-seam-2.2.1.Final.jar:2.2.1.Final]
at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) [jboss-seam-2.2.1.Final.jar:2.2.1.Final]
at org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:206) [richfaces-impl-3.3.3.Final.jar:3.3.3.Final]
at org.ajax4jsf.webapp.BaseFilter.handleRequest(BaseFilter.java:290) [richfaces-impl-3.3.3.Final.jar:3.3.3.Final]
at org.ajax4jsf.webapp.BaseFilter.processUploadsAndHandleRequest(BaseFilter.java:388) [richfaces-impl-3.3.3.Final.jar:3.3.3.Final]
at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:515) [richfaces-impl-3.3.3.Final.jar:3.3.3.Final]
at org.jboss.seam.web.Ajax4jsfFilter.doFilter(Ajax4jsfFilter.java:56) [jboss-seam-2.2.1.Final.jar:2.2.1.Final]
at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) [jboss-seam-2.2.1.Final.jar:2.2.1.Final]
at org.jboss.seam.web.LoggingFilter.doFilter(LoggingFilter.java:60) [jboss-seam-2.2.1.Final.jar:2.2.1.Final]
at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) [jboss-seam-2.2.1.Final.jar:2.2.1.Final]
at org.jboss.seam.servlet.SeamFilter.doFilter(SeamFilter.java:158) [jboss-seam-2.2.1.Final.jar:2.2.1.Final]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:280) [jbossweb-7.0.10.Final.jar:]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248) [jbossweb-7.0.10.Final.jar:]
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:275) [jbossweb-7.0.10.Final.jar:]
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:161) [jbossweb-7.0.10.Final.jar:]
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:397) [jbossweb-7.0.10.Final.jar:]
at org.jboss.as.jpa.interceptor.WebNonTxEmCloserValve.invoke(WebNonTxEmCloserValve.java:50) [jboss-as-jpa-7.1.0.Final.jar:7.1.0.Final]
at org.jboss.as.web.security.SecurityContextAssociationValve.invoke(SecurityContextAssociationValve.java:154) [jboss-as-web-7.1.0.Final.jar:7.1.0.Final]
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:155) [jbossweb-7.0.10.Final.jar:]
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) [jbossweb-7.0.10.Final.jar:]
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) [jbossweb-7.0.10.Final.jar:]
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:368) [jbossweb-7.0.10.Final.jar:]
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:877) [jbossweb-7.0.10.Final.jar:]
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:671) [jbossweb-7.0.10.Final.jar:]
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:930) [jbossweb-7.0.10.Final.jar:]
at java.lang.Thread.run(Thread.java:636) [rt.jar:1.6.0_20]

Answer 1

I solved the problem using this link http://lucasterdev.altervista.org/wordpress/2011/06/14/working-with-seam-2-2-and-jboss-as-6/
For the record: in the pom.xml of your web project, exclude the servlet-api and jboss-seam-jul artifacts from the jboss-seam-ui dependency, as shown in the following code snippet:
<dependency>
<groupId>org.jboss.seam</groupId>
<artifactId>jboss-seam-ui</artifactId>
<version>${seam.version}</version>
<exclusions>
<exclusion>
<artifactId>servlet-api</artifactId>
<groupId>javax.servlet</groupId>
</exclusion>
<exclusion>
<groupId>org.jboss.seam</groupId>
<artifactId>jboss-seam-jul</artifactId>
</exclusion>
</exclusions>
</dependency>