I try to run ma first eam application. I took the sample application, have it minimal changed. Here are my config files:

web.xml:

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://java.sun.com/xml/ns/j2ee"
 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"
 version="2.4">

 <!-- Seam -->

 <listener>
 <listener-class>org.jboss.seam.servlet.SeamListener</listener-class>
 </listener>

 <!-- MyFaces -->

 <listener>
 <listener-class>
 org.apache.myfaces.webapp.StartupServletContextListener
 </listener-class>
 </listener>

 <context-param>
 <param-name>javax.faces.STATE_SAVING_METHOD</param-name>
 <param-value>client</param-value>
 </context-param>

 <servlet>
 <servlet-name>Faces Servlet</servlet-name>
 <servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
 <load-on-startup>1</load-on-startup>
 </servlet>

 <!-- Faces Servlet Mapping -->
 <servlet-mapping>
 <servlet-name>Faces Servlet</servlet-name>
 <url-pattern>*.seam</url-pattern>
 </servlet-mapping>

 <session-config>
 <session-timeout>
 30
 </session-timeout>
 </session-config>
 <welcome-file-list>
 <welcome-file>
 index.jsp
 </welcome-file>
 </welcome-file-list>
</web-app>

faces-config:

<?xml version="1.0" encoding="UTF-8"?>

<!DOCTYPE faces-config
PUBLIC "-//Sun Microsystems, Inc.//DTD JavaServer Faces Config 1.0//EN"
 "http://java.sun.com/dtd/web-facesconfig_1_0.dtd">
<faces-config>

 <navigation-rule>
 <navigation-case>
 <from-outcome>success</from-outcome>
 <to-view-id>/registriert.jsp</to-view-id>
 </navigation-case>
 </navigation-rule>

 <!-- A phase listener is needed by all Seam applications -->

 <lifecycle>
 <phase-listener>org.jboss.seam.jsf.SeamPhaseListener</phase-listener>
 </lifecycle>

</faces-config>

If I try to get any resource from the application, with URL-Pattern "*.seam", I get a NullPointerException:

java.lang.NullPointerException
 at org.jboss.seam.contexts.PageContext.getCurrentReadableMap(PageContext.java:62)
 at org.jboss.seam.contexts.PageContext.get(PageContext.java:52)
 at org.jboss.seam.contexts.Contexts.lookupInStatefulContexts(Contexts.java:125)
 at org.jboss.seam.Component.getInstance(Component.java:1026)
 at org.jboss.seam.Component.getInstance(Component.java:1016)
 at org.jboss.seam.contexts.Lifecycle.resumeConversation(Lifecycle.java:272)
 at org.jboss.seam.jsf.SeamPhaseListener.restoreAnyConversationContext(SeamPhaseListener.java:140)
 at org.jboss.seam.jsf.SeamPhaseListener.afterPhase(SeamPhaseListener.java:95)
 at org.apache.myfaces.lifecycle.LifecycleImpl.informPhaseListenersAfter(LifecycleImpl.java:536)
 at org.apache.myfaces.lifecycle.LifecycleImpl.restoreView(LifecycleImpl.java:164)
 at org.apache.myfaces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:66)
 at javax.faces.webapp.FacesServlet.service(FacesServlet.java:197)
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
 at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
 at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
 at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
 at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
 at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
 at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
 at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:856)
 at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:744)
 at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
 at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
 at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
 at java.lang.Thread.run(Thread.java:595)