I am using pageflows and jbpm in the same seam ear when I navigate from the first page of the page flow I get the error 16:11:04,991 ERROR [PhaseListenerManager] Exception in PhaseListener RESTORE_VIEW(1) afterPhase java.lang.ClassCastException: org.jbpm.graph.node.StartState at org.jboss.seam.core.Pageflow.getPage(Pageflow.java:135) at org.jboss.seam.core.Pageflow.validatePageflow(Pageflow.java:78) at org.jboss.seam.jsf.AbstractSeamPhaseListener.restoreAnyConversationContext(AbstractSeamPhaseListener.java:45) I Set JAVA_OPTS to display class loading export JAVA_OPTS="-XX:MaxPermSize=128m -verbose:class" The whole jboss log is 11000 lines long so Ill just show some parts $ grep StartState /tmp/boss.log [Loaded org.jbpm.graph.node.StartState from file:/usr/local/jboss-4.0.4.GA/server/default/tmp/deploy/tmp52708jbpm-3.1.1.jar] 16:00:34,526 INFO [Configuration] Reading mappings from resource: org/jbpm/graph/node/StartState.hbm.xml 16:00:34,532 INFO [HbmBinder] Mapping subclass: org.jbpm.graph.node.StartState -> JBPM_NODE [Loaded org.jbpm.graph.node.StartState$$EnhancerByCGLIB$$66784c74 from file:/usr/local/jboss-4.0.4.GA/server/default/lib/cglib.jar] java.lang.ClassCastException: org.jbpm.graph.node.StartState $ grep Pageflow /tmp/boss.log [Loaded org.jboss.seam.core.Pageflow from file:/usr/local/jboss-4.0.4.GA/server/default/tmp/deploy/tmp52765sgi-ear-1.0.ear-contents/jboss-seam-1.0.1.jar] 16:00:33,875 INFO [Component] Component: org.jboss.seam.core.pageflow, scope: CONVERSATION, type: JAVA_BEAN, class: org.jboss.seam.core.Pageflow [Loaded org.jboss.seam.core.Pageflow$$EnhancerByCGLIB$$6b8381f6 from file:/usr/local/jboss-4.0.4.GA/server/default/lib/cglib.jar] [Loaded org.jbpm.pageflow.PageflowHelper from file:/usr/local/jboss-4.0.4.GA/server/default/tmp/deploy/tmp52708jbpm-3.1.1.jar] [Loaded org.jbpm.pageflow.PageflowParser from file:/usr/local/jboss-4.0.4.GA/server/default/tmp/deploy/tmp52708jbpm-3.1.1.jar] I have tried with the Flat classloader (jboss default) and the Hierarchical classloader as shown in the wiki under classloading problems, I moved jppm to the deploy/jbossweb-tomcat55.sar/jsf-libs/ to see if that made a difference, but no luck. The only strange thing is that the StartState is a cglib proxy, but that shouldnt generate a class cast exception. Seam is great (when it works) but I have now spent 2 days trying to solve classloading issues with tomahawk and fileuploads, its just too difficult to configure. Please can someone come to my rescue. If I havent provided enough information please let me know the ear as deployed META-INF/ META-INF/MANIFEST.MF META-INF/application.xml META-INF/jboss-app.xml jboss-seam-1.0.1.jar jbpm-3.1.1.jar sgi-web-1.0.war [ WEB-INF/ WEB-INF/incl/ WEB-INF/decorators/ WEB-INF/classes/ WEB-INF/lib/ img/ WEB-INF/incl/admin_nav.xhtml WEB-INF/incl/login.xhtml WEB-INF/incl/cart.xhtml WEB-INF/incl/processmenu.xhtml WEB-INF/incl/searchbox.xhtml WEB-INF/incl/stats.xhtml WEB-INF/incl/store_nav.xhtml WEB-INF/components.xml WEB-INF/faces-config.xml WEB-INF/pages.xml WEB-INF/template.xhtml WEB-INF/web.xml WEB-INF/decorators.xml WEB-INF/jboss-web.xml WEB-INF/decorators/main.jsp WEB-INF/tomahawk.taglib.xml WEB-INF/classes/messages.properties WEB-INF/lib/el-ri-1.0.1.jar WEB-INF/lib/commons-fileupload-1.1.jar WEB-INF/lib/commons-email-1.0.jar WEB-INF/lib/jboss-seam-ui-1.0.1.jar WEB-INF/lib/el-api-1.0.1.jar WEB-INF/lib/sitemesh-2.2.1.jar WEB-INF/lib/commons-lang-2.1.jar WEB-INF/lib/standard-1.0.1.jar WEB-INF/lib/mail-1.3.3.jar WEB-INF/lib/jsf-facelets-1.0.1.jar WEB-INF/lib/commons-io-1.2.jar WEB-INF/lib/dumbster-1.6.jar WEB-INF/lib/activation-1.0.2.jar WEB-INF/lib/jboss-seam-debug-1.0.1.jar img/ordermanagement1.html img/shade.subtitle.gif img/checkout.jpg img/nav.tab.left.gif img/newuser.html img/menu.bg.gif img/bg.gif img/arrow-l.png img/ordermanagement2.html img/ordermanagement3.html img/menu.top.bg.gif img/arrow-r.png img/newuser.jpg img/ordermanagement1.jpg img/checkout.html img/ordermanagement2.jpg img/nav.tab.right.gif img/ordermanagement3.jpg confirm.xhtml home.xhtml admin.xhtml showorders.xhtml accept.xhtml checkout.xhtml browse.xhtml ship.xhtml complete.xhtml new_contact.xhtml new_account.xhtml index.jsp dvd.xhtml screen.css new_complete.xhtml style.xsl new_card.xhtml messages.xhtml todo.xhtml login.xhtml document.xhtml documents.xhtml documentOrRegister.xhtml register.xhtml documentDone.xhtml menu.xhtml style.css processes.xhtml personView.xhtml upload.xhtml personEditList.xhtml personList.xhtml personEdit.xhtml META-INF/maven/ META-INF/maven/com.hazlorealidad/ META-INF/maven/com.hazlorealidad/sgi-web/ META-INF/maven/com.hazlorealidad/sgi-web/pom.xml META-INF/maven/com.hazlorealidad/sgi-web/pom.properties ] commons-fileupload-1.1.jar commons-email-1.0.jar commons-lang-2.1.jar mail-1.3.3.jar commons-io-1.2.jar sgi-ejb-1.0.jar [ com/ com/hazlorealidad/ com/hazlorealidad/sgi/ com/hazlorealidad/sgi/control/ com/hazlorealidad/sgi/model/ META-INF/persistence.xml META-INF/sgi-ds.xml import.sql seam.properties com/hazlorealidad/sgi/control/PersonManagerBean.class com/hazlorealidad/sgi/control/PersonManager.class com/hazlorealidad/sgi/control/MessageManagerBean.class com/hazlorealidad/sgi/control/MessageManager.class com/hazlorealidad/sgi/control/RepeatedTask.class com/hazlorealidad/sgi/control/DocumentRegisterEntryBean.class com/hazlorealidad/sgi/control/DocumentRegisterEntry.class com/hazlorealidad/sgi/control/Documents.class com/hazlorealidad/sgi/control/DocumentsBean.class com/hazlorealidad/sgi/control/ProcessManager.class com/hazlorealidad/sgi/control/Upload.class com/hazlorealidad/sgi/control/UploadBackingBean.class com/hazlorealidad/sgi/control/LoginAction.class com/hazlorealidad/sgi/control/Login.class com/hazlorealidad/sgi/control/ProcessManagerBean.class com/hazlorealidad/sgi/control/UploadAction.class com/hazlorealidad/sgi/model/Person.class com/hazlorealidad/sgi/model/Message.class com/hazlorealidad/sgi/model/Document.class com/hazlorealidad/sgi/model/Actor.class com/hazlorealidad/sgi/model/TodoList.class com/hazlorealidad/sgi/model/Customer.class com/hazlorealidad/sgi/model/User.class com/hazlorealidad/sgi/model/Admin.class com/hazlorealidad/sgi/model/Login.class META-INF/ejb-jar.xml META-INF/maven/ META-INF/maven/com.hazlorealidad/ META-INF/maven/com.hazlorealidad/sgi-ejb/ META-INF/maven/com.hazlorealidad/sgi-ejb/pom.xml META-INF/maven/com.hazlorealidad/sgi-ejb/pom.properties ] dumbster-1.6.jar activation-1.0.2.jar checkout.jpdl.xml newuser.jpdl.xml jbpm.cfg.xml ordermanagement1.jpdl.xml ordermanagement2.jpdl.xml ordermanagement3.jpdl.xml hibernate.cfg.xml todo.jpdl.xml person.jpdl.xml documentRegisterEntry.jpdl.xml META-INF/maven/ META-INF/maven/com.hazlorealidad/ META-INF/maven/com.hazlorealidad/sgi-ear/ META-INF/maven/com.hazlorealidad/sgi-ear/pom.xml META-INF/maven/com.hazlorealidad/sgi-ear/pom.properties View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3970557#... 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