[jboss-user] [JBoss Seam] - Pageflow - ClassCastException: org.jbpm.graph.node.StartStat

hazlorealidad do-not-reply at jboss.com
Sat Sep 9 17:33:50 EDT 2006 

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


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