java.lang.NullPointerException at at org.jboss.seam.context
mmarcom May 28, 2006 1:21 PMHi all,
i m trying to write a small app using jboss-seam
i am using latest seam from CVS and i am deplolying on jboss-4.0.4.GA.
i am getting this exception while accessing a index.html page (similar to those of examples...), and i am using facelets...
here's exception
17:14:48,781 ERROR [SeamExceptionFilter] uncaught exception handled by Seam javax.servlet.ServletException at javax.faces.webapp.FacesServlet.service(FacesServlet.java:125) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl icationFilterChain.java:252) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF ilterChain.java:173) at org.jboss.seam.servlet.SeamRedirectFilter.doFilter(SeamRedirectFilter .java:45) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl icationFilterChain.java:202) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF ilterChain.java:173) at org.jboss.seam.servlet.SeamExceptionFilter.doFilter(SeamExceptionFilt er.java:89) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl icationFilterChain.java:202) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF ilterChain.java:173) at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFi lter.java:96) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl icationFilterChain.java:202) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF ilterChain.java:173) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperV alve.java:213) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextV alve.java:178) at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(Securit yAssociationValve.java:175) at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValv e.java:74) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.j ava:126) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.j ava:105) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineVal ve.java:107) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.jav a:148) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java :869) at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.p rocessConnection(Http11BaseProtocol.java:664) at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpo int.java:527) at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWor kerThread.java:112) at java.lang.Thread.run(Unknown Source) 17:14:48,796 ERROR [[Faces Servlet]] Servlet.service() for servlet Faces Servlet threw exception java.lang.NullPointerException at org.jboss.seam.contexts.PageContext.getCurrentReadableMap(PageContext .java:123) at org.jboss.seam.contexts.PageContext.get(PageContext.java:103) at org.jboss.seam.core.Manager.restoreConversation(Manager.java:907) at org.jboss.seam.jsf.AbstractSeamPhaseListener.restoreAnyConversationCo ntext(AbstractSeamPhaseListener.java:81) at org.jboss.seam.jsf.SeamPhaseListener.afterPhase(SeamPhaseListener.jav a:63) at org.jboss.seam.jsf.SeamExtendedManagedPersistencePhaseListener.afterP hase(SeamExtendedManagedPersistencePhaseListener.java:109) 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:106) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl icationFilterChain.java:252) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF ilterChain.java:173) at org.jboss.seam.servlet.SeamRedirectFilter.doFilter(SeamRedirectFilter .java:45) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl icationFilterChain.java:202) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF ilterChain.java:173) at org.jboss.seam.servlet.SeamExceptionFilter.doFilter(SeamExceptionFilt er.java:89) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl icationFilterChain.java:202) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF ilterChain.java:173) at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFi lter.java:96) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl icationFilterChain.java:202) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF ilterChain.java:173) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperV alve.java:213) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextV alve.java:178) at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(Securit yAssociationValve.java:175) at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValv e.java:74) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.j ava:126) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.j ava:105) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineVal ve.java:107) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.jav
here's my web.xml
<!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN" "http://java.sun.com/dtd/web-app_2_3.dtd" > <web-app> <display-name>Archetype Created Web Application</display-name> <listener> <listener-class>org.jboss.seam.servlet.SeamListener</listener-class> </listener> <listener> <listener-class>org.apache.myfaces.webapp.StartupServletContextListener</listener-class> </listener> <!-- Global JNDI name pattern for JBoss EJB3 (change for other servers) --> <context-param> <param-name>org.jboss.seam.core.init.jndiPattern</param-name> <param-value>${ear.name}-1.0/#{ejbName}/local</param-value> </context-param> <context-param> <param-name>org.jboss.seam.core.init.componentClasses</param-name> <param-value></param-value> </context-param> <context-param> <param-name>org.jboss.seam.core.init.myFacesLifecycleBug</param-name> <param-value>true</param-value> </context-param> <!-- Facelets --> <!-- Facelets start --> <!-- Use Documents Saved as *.xhtml --> <context-param> <param-name>javax.faces.DEFAULT_SUFFIX</param-name> <param-value>.xhtml</param-value> </context-param> <!-- Special Debug Output for Development --> <context-param> <param-name>facelets.DEVELOPMENT</param-name> <param-value>true</param-value> </context-param> <!-- Facelets end --> <!-- MyFaces --> <context-param> <param-name>javax.faces.CONFIG_FILES</param-name> <param-value>/WEB-INF/faces-config.xml</param-value> </context-param> <context-param> <param-name>javax.faces.STATE_SAVING_METHOD</param-name> <param-value>client</param-value> <description> State saving method: "client" or "server" (= default) See JSF Specification 2.5.2 </description> </context-param> <context-param> <param-name>org.apache.myfaces.ALLOW_JAVASCRIPT</param-name> <param-value>true</param-value> <description> This parameter tells MyFaces if javascript code should be allowed in the rendered HTML output. If javascript is allowed, command_link anchors will have javascript code that submits the corresponding form. If javascript is not allowed, the state saving info and nested parameters will be added as url parameters. Default: "true" </description> </context-param> <context-param> <param-name>org.apache.myfaces.DETECT_JAVASCRIPT</param-name> <param-value>false</param-value> </context-param> <context-param> <param-name>org.apache.myfaces.PRETTY_HTML</param-name> <param-value>true</param-value> <description> If true, rendered HTML code will be formatted, so that it is "human readable". i.e. additional line separators and whitespace will be written, that do not influence the HTML code. Default: "true" </description> </context-param> <context-param> <param-name>org.apache.myfaces.AUTO_SCROLL</param-name> <param-value>true</param-value> <description> If true, a javascript function will be rendered that is able to restore the former vertical scroll on every request. Convenient feature if you have pages with long lists and you do not want the browser page to always jump to the top if you trigger a link or button action that stays on the same page. Default: "false" </description> </context-param> <context-param> <param-name>facelets.REFRESH_PERIOD</param-name> <param-value>2</param-value> </context-param> <filter> <filter-name>Seam Exception Filter</filter-name> <filter-class>org.jboss.seam.servlet.SeamExceptionFilter</filter-class> </filter> <filter> <filter-name>Seam Redirect Filter</filter-name> <filter-class>org.jboss.seam.servlet.SeamRedirectFilter</filter-class> </filter> <filter-mapping> <filter-name>Seam Exception Filter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <filter-mapping> <filter-name>Seam Redirect Filter</filter-name> <url-pattern>*.seam</url-pattern> </filter-mapping> <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> </web-app> [/code/ here's my faces-config.xml <?xml version="1.0" encoding="ISO-8859-1"?> <!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>/result.xhtml</to-view-id> </navigation-case> </navigation-rule> <navigation-rule> <navigation-case> <from-outcome>error</from-outcome> <to-view-id>/error.xhtml</to-view-id> </navigation-case> </navigation-rule> <navigation-rule> <navigation-case> <from-outcome>start</from-outcome> <to-view-id>/register.xhtml</to-view-id> </navigation-case> </navigation-rule> <navigation-rule> <navigation-case> <from-outcome>end</from-outcome> <to-view-id>/end.xhtml</to-view-id> </navigation-case> </navigation-rule> <application> <message-bundle>messages</message-bundle> <locale-config> <default-locale>en_US</default-locale> <supported-locale>en</supported-locale> </locale-config> </application> <application> <view-handler>com.sun.facelets.FaceletViewHandler</view-handler> </application> <lifecycle> <phase-listener>org.jboss.seam.jsf.SeamExtendedManagedPersistencePhaseListener</phase-listener> </lifecycle> </faces-config> and here's my simple index.html page <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" /> <meta http-equiv="refresh" content="0; url=register.seam" /> <title>Untitled Document</title> </head> <body> </body> </html> i saw a similar post dated 9th may, but there was no solution at theend.. could anyone help me out? thanks and regards marco