Hello,

I am trying to use the mediaOutput tag but I am getting a very odd exception:

15:43:50,746 ERROR [[Faces Servlet]] Servlet.service() for servlet Faces Servlet threw exception
javax.faces.el.EvaluationException: /if/graphList.xhtml @20,38 createContent="#{wgGraphs.state.paint}": Exception getting value of property state of base of type : net.infofilter.session.watchgroup.GraphsBean_$$_javassist_78
 at com.sun.facelets.el.LegacyMethodBinding.invoke(LegacyMethodBinding.java:73)
 at org.ajax4jsf.framework.resource.UserResource.send(UserResource.java:110)
 at org.ajax4jsf.framework.resource.ResourceLifecycle.send(ResourceLifecycle.java:86)
 at org.ajax4jsf.framework.resource.InternetResourceService.sendResource(InternetResourceService.java:213)
 at org.ajax4jsf.framework.resource.InternetResourceService.serviceResource(InternetResourceService.java:198)
 at org.ajax4jsf.framework.resource.InternetResourceService.serviceResource(InternetResourceService.java:118)
 at org.ajax4jsf.framework.ajax.xmlfilter.BaseFilter.doFilter(BaseFilter.java:207)
 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)
Caused by: javax.faces.el.EvaluationException: Bean: net.infofilter.session.watchgroup.GraphsBean_$$_javassist_78, property: state
 at org.apache.myfaces.el.PropertyResolverImpl.getProperty(PropertyResolverImpl.java:442)
 at org.apache.myfaces.el.PropertyResolverImpl.getValue(PropertyResolverImpl.java:82)
 at com.sun.facelets.el.LegacyELContext$LegacyELResolver.getValue(LegacyELContext.java:141)
 at com.sun.el.parser.AstValue.getTarget(AstValue.java:86)
 at com.sun.el.parser.AstValue.invoke(AstValue.java:170)
 at com.sun.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:286)
 at com.sun.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:68)
 at com.sun.facelets.el.LegacyMethodBinding.invoke(LegacyMethodBinding.java:69)
 ... 26 more
Caused by: java.lang.reflect.InvocationTargetException
 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
 at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
 at java.lang.reflect.Method.invoke(Method.java:585)
 at org.apache.myfaces.el.PropertyResolverImpl.getProperty(PropertyResolverImpl.java:438)
 ... 33 more
Caused by: org.jboss.seam.RequiredException: In attribute requires non-null value: wgGraphs.user
 at org.jboss.seam.Component.getValueToInject(Component.java:1919)
 at org.jboss.seam.Component.injectAttributes(Component.java:1368)
 at org.jboss.seam.Component.inject(Component.java:1195)
 at org.jboss.seam.interceptors.BijectionInterceptor.aroundInvoke(BijectionInterceptor.java:46)
 at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:69)
 at org.jboss.seam.interceptors.MethodContextInterceptor.aroundInvoke(MethodContextInterceptor.java:27)
 at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:69)
 at org.jboss.seam.interceptors.SynchronizationInterceptor.aroundInvoke(SynchronizationInterceptor.java:31)
 at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:69)
 at org.jboss.seam.intercept.RootInterceptor.invoke(RootInterceptor.java:113)
 at org.jboss.seam.intercept.JavaBeanInterceptor.interceptInvocation(JavaBeanInterceptor.java:151)
 at org.jboss.seam.intercept.JavaBeanInterceptor.invoke(JavaBeanInterceptor.java:87)
 at net.infofilter.session.watchgroup.GraphsBean_$$_javassist_78.getState(GraphsBean_$$_javassist_78.java)
 ... 38 more

Obviously 'user' is a session scoped bean and is available to wgGraphs (which is already initialized).



here is my view

<h:panelGrid columns="2">

 <a:repeat value="#{wgGraphs.state.currentPage}" var="graph" rowKeyVar="rowKey">
 <a:mediaOutput element="img" cacheable="false" session="true"
 createContent="#{wgGraphs.state.paint}" value="#{rowKey}"
 mimeType="image/png"
 standby="Rendering Graph ..." />
 </a:repeat>
 </h:panelGrid>

Any help?

thanks,
Dustin