Environment: JBoss Portal/AS Version: Downloaded JBoss Portal + JBoss AS 2.4 OS Platform: Windows XP Java: 1.4.2_12 Problem: Extending JBossPortlet (using CatalogPortlet as a guide) yields a ClassCastException when render is called. PortletContainer.invokeRender() is calling JBossPortlet.render(RenderRequest, RenderResponse) with arguments of type RenderRequestImpl and RenderResponseImpl. JBossPortlet then attempts to cast those arguments to JBossRenderRequest and JBossRenderResponse which results in the exception. I'm sure I'm doing something stupid. Can anyone enlighten me? Note that my code (a subclass of JBossPortlet) never gets called. Stack Trace: | java.lang.ClassCastException | at org.jboss.portlet.JBossPortlet.render(JBossPortlet.java:384) | at org.jboss.portal.portlet.container.PortletContainer.invokeRender(PortletContainer.java:519) | ... | portlet.xml: | <portlet> | <portlet-name>PentahoMenuPortlet</portlet-name> | <portlet-class> | org.pentaho.ui.portlet.PentahoMenuPortlet | </portlet-class> | <supports> | <mime-type>text/html</mime-type> | <portlet-mode>VIEW</portlet-mode> | </supports> | <portlet-info> | <title>PentahoMenuPortlet</title> | </portlet-info> | </portlet> | portlet-instances.xml: | <deployment> | <instance> | <instance-id>PentahoMenuInstance</instance-id> | <portlet-ref>PentahoMenuPortlet</portlet-ref> | </instance> | </deployment> | default-object.xml: | <deployments> | <deployment> | <parent-ref>default</parent-ref> | <if-exists>overwrite</if-exists> | <page> | <page-name>Pentaho</page-name> | <window> | <window-name>NavigationPortletWindow</window-name> | <instance-ref>NavigationPortletInstance</instance-ref> | <region>navigation</region> | <height>0</height> | <properties> | <property> | <name>theme.windowRendererId</name> | <value>emptyRenderer</value> | </property> | <property> | <name>theme.decorationRendererId</name> | <value>emptyRenderer</value> | </property> | <property> | <name>theme.portletRendererId</name> | <value>emptyRenderer</value> | </property> | </properties> | </window> | <window> | <window-name>PentahoNewsWindow</window-name> | <instance-ref>PentahoNewsInstance</instance-ref> | <region>center</region> | <height>0</height> | </window> | <window> | <window-name>PentahoMenuWindow</window-name> | <instance-ref>PentahoMenuInstance</instance-ref> | <region>left</region> | <height>0</height> | </window> | ... | View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3994353#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...