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As mentioned in the JSF migration thread (https://developer.jboss.org/thread/203257?start=0&tstart=0), it might not be possible to get all JSF 2.2 features completely working with EAP 6.x. The FlowScope feature in Mojarra 2.2 likely won't work. It's possible that other JSF 2.2 features are broken as well. However, all of this has been fixed in WildFly.