Hi All, I am required to run xwiki as portlet on JBoss Portal. I have deployed xwiki-1.0.war in JBoss Portal's server/default/deploy/xwiki directory as specified in http://www.xwiki.org/xwiki/bin/view/AdminGuide/InstallationJBoss. I have also configured MySQL as specified in http://www.xwiki.org/xwiki/bin/view/AdminGuide/InstallationMySQL. But when in start JBoss Portal I get: 18:06:49,573 ERROR [AbstractKernelController] Error installing to Start: name=portal:container=Portlet,id=/xwiki-1.0.xwiki state=Createorg.jboss.portal.portlet.container.PortletInitializationException: The portlet xwiki threw a runtime exception during init at org.jboss.portal.portlet.container.PortletContainer.start(PortletContainer.java:285) at org.jboss.portal.portlet.container.PortletContainerAdapter.start(PortletContainerAdapter.java:72) at sun.reflect.GeneratedMethodAccessor165.invoke(Unknown Source) Caused by: java.lang.ClassCastException: com.xpn.xwiki.web.XWikiPortlet at org.jboss.portal.portlet.container.PortletContainer.start(PortletContainer.java:247) ... 147 more My JBoss AS is v4.0.5.GA. Cant figure out the reason behind ClassCastException. I have also got jspwiki configured and it is running OK as a portlet. Thanks & Regards, View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4050938#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...