What could give a
14:38:25,769 ERROR [SeamPhaseListener] swallowing exception java.lang.IllegalArgumentException: No enum const class org.jboss.seam.core.PropagationType. at java.lang.Enum.valueOf(Unknown Source)
<f:param name="conversationPropagation" value="none"/> or a <s:conversationPropagation type="none"/> in the link?