I have an app working with Seam 1.2.1ga / JbossAS 4.0.5ga, Java1.5.0_11 and mysql. Application works okay and very fast. All pages are completely rendered in less than a second. I decided to upgrade to Seam 1.3.1a / JBossAS 4.2.0ga. I've updated all configuration files, componets.xml, build.xml and project libs. Application compiles and starts well. Could you please help me to find the bottleneck? I suppose that performance degradation is related to caching of complied JSP pages... Many thanks, Alex View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4055987#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...