Simon,Matthias I cooked the whole problem down to a minimum, just a single JSP with a single managed bean. The problem only occurs when the JSF is accessed through a weblogic portlet, running the stuff outside the portlet everything is OK.
I switched to using the Sun-RI and the problem went away. I then upgraded to MyFaces 1.1.5 and the problem reappeared. So the issue would seem to be between the Weblogic Portal portlet bridge and the MyFaces Implementation. I am going to rattle some cages over at BEA. This has cost me days... Luckily all of my tomahawk components seem happy with the Sun-RI, so at least I'm moving forward again. I also got the broken Tiles working inside the portlets, you just have to make sure that the tiles:insert does an explicit flush="false", I didn't need to do this with MyFaces 1.1.1, but I do need to do this with the MyFaces 1.1.5 and the Sun-RI: why? who knows! Thanks for your help guys. ____ This message and any files transmitted with it are legally privileged and intended for the sole use of the individual(s) or entity to whom they are addressed. If you are not the intended recipient, please notify the sender by reply and delete the message and any attachments from your system. Any unauthorised use or disclosure of the content of this message is strictly prohibited and may be unlawful. Nothing in this e-mail message amounts to a contractual or legal commitment on the part of EUROCONTROL, unless it is confirmed by appropriately signed hard copy. Any views expressed in this message are those of the sender.

