Because the beta 1 release has a bug, which makes my application not-runnable, i can't use it. So i built seam 2 from the CVS myself. i have a stateful bean, a long-running conversation. In a step a table is displayed with clickable links made by <s:link>. from the "action" i'm calling a method of the bean with a parameter. The method is called successfully but the parameter is always null. I am using <rich:dataTable>. Here how it looks like (shortened) <rich:dataTable var="gene" value="#{methcancerpipe.genes}"> | <f:facet name="header"> Column Headers ... </f:facet> | | <rich:column> | <ui:repeat value="#{gene.geneinfo.isoforms}" var="isoform"> | <s:link action="#{methcancerpipe.displayCpGInfos(isoform)}" value="#{isoform.name} "/> | </ui:repeat> | </rich:column> | </rich:dataTable> Somehow "isoform" set to null on the way. it is not null because the name (value="#{isoform.name} ) is shown correctly. But if i set the parameter statically like this: <ui:repeat value="#{gene.geneinfo.isoforms}" var="isoform"> | <s:link action="#{methcancerpipe.displayCpGInfos(methcancerpipe.genes[0].geneinfo.isoforms[0])}" value="#{isoform.name} "/> | </ui:repeat> it works as expected. i think, this is a bug. What do you think? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4062717#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...