"erezharari" wrote : this is correct. however, the preferences section of a portlet is read-only (for non read-only preferences as well). | and more. when i redeploy a portlet instance for which i have overriden the orig preferences in portlet-instances.xml, the changes are not applied, as the instance is already deployed and there is no 'override' option in portlet-instances.xml. | | so is there a way to manually 'clear' the deployed instance (in database maybe) and allow the changes to be applied when i redeploy it? I think there is an option that allows to do that which is the tag "if-exists" with the overwrite value. <instance> | ... | <if-exists>overwrite</if-exists> | ... | </instance> View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4143572#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...