Showcase doesn't start if glassfish javax.faces implemetnation is replaced with myfaces libraries.

maj 18, 2014 3:13:41 PM org.apache.myfaces.webapp.AbstractFacesInitializer initFaces
SEVERE: An error occured while initializing MyFaces: This method is not supported during startup
java.lang.UnsupportedOperationException: This method is not supported during startup
        at org.apache.myfaces.context.servlet.StartupServletExternalContextImpl.getSession(StartupServletExternalContextImpl.java:187)
        at org.apache.myfaces.view.impl.DefaultViewScopeHandler.generateViewScopeId(DefaultViewScopeHandler.java:128)
        at org.apache.myfaces.view.ViewScopeProxyMap.getWrapped(ViewScopeProxyMap.java:76)
        at org.apache.myfaces.view.ViewScopeProxyMap.get(ViewScopeProxyMap.java:109)
        at org.icefaces.util.EnvUtils.getViewParam(EnvUtils.java:1041)
        at org.icefaces.util.EnvUtils.isFocusManaged(EnvUtils.java:521)
        at org.icefaces.impl.event.BridgeSetup.<init>(BridgeSetup.java:60)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
        at java.lang.Class.newInstance(Class.java:374)
        at org.apache.myfaces.shared.util.ClassUtils.newInstance(ClassUtils.java:411)
        at org.apache.myfaces.shared.util.ClassUtils.newInstance(ClassUtils.java:374)
        at org.apache.myfaces.config.FacesConfigurator.configureApplication(FacesConfigurator.java:649)
        at org.apache.myfaces.config.FacesConfigurator.configure(FacesConfigurator.java:477)
        at org.apache.myfaces.webapp.AbstractFacesInitializer.buildConfiguration(AbstractFacesInitializer.java:416)
        at org.apache.myfaces.webapp.Jsp21FacesInitializer.initContainerIntegration(Jsp21FacesInitializer.java:73)
        at org.apache.myfaces.webapp.AbstractFacesInitializer.initFaces(AbstractFacesInitializer.java:172)
        at org.apache.myfaces.webapp.StartupServletContextListener.contextInitialized(StartupServletContextListener.java:119)
        at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4971)
BTW.
Some pom.xml files isn't updated to support myfaces profile.
But users can simple fix it so it is not problem.