After i migrated my server to jbpm 3.2.1, I see the following exception during the server start: 3:13:18,426 ERROR [[/jbpm-console]] Exception sending context initialized event to listener instance of class com.sun.faces.config.ConfigureListener ava.lang.NoClassDefFoundError: edu/emory/mathcs/backport/java/util/Arrays at com.sun.faces.renderkit.RenderKitUtils.(RenderKitUtils.java:155) I can't find this library anywhere. Any ideas? Thanks. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4058339#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...