Still one problem, though . When I call a method with single argument (argument is entity bean) everything works well : JSF code <s:button action="#{cart.addPart(part)}" value="Add to Cart"/> Java code public void addPart(PartCMP part) | { | cartOrder.addPosition(part, 1); | } But when I use 2 arguments, I am getting IllegalArgumentException : JSF code <s:button action="#{cart.addPart(part,1)}" value="Add to Cart"/> Java code public void addPart(PartCMP part, int quantity) | { | cartOrder.addPosition(part, quantity); | } Is SEAM facelet handler able to process calls with multiple arguments ? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4056100#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...