[jboss-user] [JBoss Seam] - a4j:mediaOutput and SeamFaceletViewHandler

johnnybe do-not-reply at jboss.com
Sat Nov 4 00:39:09 EST 2006


Hi,

I've run into a problem using a4j:mediaOutput from the ajax4jsf library for displaying an image retrieved from my db.
When I'm trying to load the page I get the following exception from the ajax4jsf-call:


  | 06:19:27,765 ERROR [SeamExceptionFilter] uncaught exception handled by Seam
  | java.lang.IllegalStateException: No application context active
  |         at org.jboss.seam.Component.forName(Component.java:1439)
  |         at org.jboss.seam.Component.getInstance(Component.java:1479)
  |         at org.jboss.seam.Component.getInstance(Component.java:1467)
  |         at org.jboss.seam.jsf.SeamVariableResolver.resolveVariable(SeamVariableResolver.java:45)
  |         at org.apache.myfaces.custom.redirectTracker.RedirectTrackerVariableResolver.resolveVariable(RedirectTrackerVariableResolver.java:38)
  |         at org.apache.myfaces.config.LastVariableResolverInChain.resolveVariable(LastVariableResolverInChain.java:42)
  |         at com.sun.facelets.el.LegacyELContext$LegacyELResolver.getValue(LegacyELContext.java:134)
  |         at com.sun.el.parser.AstIdentifier.getValue(AstIdentifier.java:65)
  |         at com.sun.el.parser.AstValue.getTarget(AstValue.java:62)
  |         at com.sun.el.parser.AstValue.invoke(AstValue.java:147)
  |         at com.sun.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:283)
  |         at com.sun.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:68)
  |         at com.sun.facelets.el.LegacyMethodBinding.invoke(LegacyMethodBinding.java:69)
  |         at org.ajax4jsf.framework.resource.UserResource.send(UserResource.java:92)
  |         at org.ajax4jsf.framework.resource.ResourceLifecycle.send(ResourceLifecycle.java:79)
  |         at org.ajax4jsf.framework.resource.InternetResourceService.sendResource(InternetResourceService.java:191)
  |         at org.ajax4jsf.framework.resource.InternetResourceService.serviceResource(InternetResourceService.java:176)
  |         at org.ajax4jsf.framework.resource.InternetResourceService.serviceResource(InternetResourceService.java:96)
  |         at org.ajax4jsf.framework.ajax.xmlfilter.BaseFilter.doFilter(BaseFilter.java:210)
  |         at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
  |         at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
  |         at org.apache.myfaces.webapp.filter.ExtensionsFilter.doFilter(ExtensionsFilter.java:144)
  |         at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
  |         at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
  |         at org.jboss.seam.servlet.SeamRedirectFilter.doFilter(SeamRedirectFilter.java:32)
  |         at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
  |         at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
  |         at org.jboss.seam.servlet.SeamExceptionFilter.doFilter(SeamExceptionFilter.java:45)
  |         at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
  |         at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
  |         at de.teachers24.util.LoginRequestParamFilter.doFilter(LoginRequestParamFilter.java:23)
  |         at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
  |         at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
  |         at de.teachers24.util.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:30)
  |         at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
  |         at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
  |         at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
  |         at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
  |         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.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:175)
  |         at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:432)
  |         at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:74)
  |         at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
  |         at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
  |         at org.jboss.web.tomcat.tc5.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:156)
  |         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:869)
  |         at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
  |         at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
  |         at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112)
  |         at java.lang.Thread.run(Thread.java:595)
  | 

Alle the other ajax4jsf-tags work fine in my environment. It looks like it fails when trying to resolve an EL expression. I am not resolving any expressions in my code of the method for generationg the outputstream.
Even if I don't declare it as Seam component but instead as an mbean (so not using any Seam-related stuff inside) I get the same exception.
I am using jboss-seam-CVS.20061030 with AS 4.0.5, myfaces and facelets and the SeamFaceletViewHandler for the EL enhancements.

Any ideas?

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