When enabling "scoped classloading" by adding the famous "<loader-repository>" to jboss-app.xml in the META-INF of my .ear,
JBoss fails to deploy the .par which is contained in the .ear, by throwing a ClassNotFoundException
All needed classes are in this .par and no external dependencies exist. Without the "<loader-repository>" entry in jboss-app.xml it deploys fine.

Stacktrace:
18:23:52,600 INFO [EARDeployer] Init J2EE application: file:/D:/jboss/jboss-4.0.3RC2/server/default
/deploy/smartea.ear/
18:23:52,640 INFO [JaccHelper] Initialising JACC Context for deployment: smartea.par
18:23:52,640 INFO [Ejb3Deployment] Found persistence.xml file in EJB3 jar
18:23:52,650 INFO [HibernatePersistence] found EJB3 Entity bean: de.eyetea.smartea.entity.admin.Rol
eDefinition
18:23:52,650 INFO [HibernatePersistence] found EJB3 @EmbeddableSuperclass: de.eyetea.smartea.entity
.BaseEntity
18:23:52,650 WARN [ServiceController] Problem creating service jboss.j2ee:service=EJB3,module=smart
ea.par
java.lang.IllegalArgumentException: class not found
at org.hibernate.ejb.HibernatePersistence.addNamedAnnotatedClasses(HibernatePersistence.java
:556)
at org.hibernate.ejb.HibernatePersistence.createEntityManagerFactory(HibernatePersistence.ja
va:389)
at org.hibernate.ejb.HibernatePersistence.createContainerEntityManagerFactory(HibernatePersi
stence.java:272)
at org.jboss.ejb3.Ejb3Deployment.initializeManagedEntityManagerFactory(Ejb3Deployment.java:4
76)
at org.jboss.ejb3.Ejb3Deployment.create(Ejb3Deployment.java:219)
at org.jboss.ejb3.Ejb3Module.createService(Ejb3Module.java:34)
at org.jboss.system.ServiceMBeanSupport.jbossInternalCreate(ServiceMBeanSupport.java:252)
at org.jboss.system.ServiceMBeanSupport.jbossInternalLifecycle(ServiceMBeanSupport.java:234)

at sun.reflect.GeneratedMethodAccessor72.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:141)
at org.jboss.mx.server.Invocation.dispatch(Invocation.java:80)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:72)
at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:245)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:644)
at org.jboss.system.ServiceController$ServiceProxy.invoke(ServiceController.java:974)
at $Proxy0.create(Unknown Source)
at org.jboss.system.ServiceController.create(ServiceController.java:356)
at org.jboss.system.ServiceController.create(ServiceController.java:295)
at sun.reflect.GeneratedMethodAccessor5.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:141)
at org.jboss.mx.server.Invocation.dispatch(Invocation.java:80)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:72)
at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:245)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:644)
at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:176)
at $Proxy10.create(Unknown Source)
at org.jboss.ejb3.EJB3Deployer.create(EJB3Deployer.java:178)
at org.jboss.deployment.MainDeployer.create(MainDeployer.java:919)
at org.jboss.deployment.MainDeployer.create(MainDeployer.java:909)
at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:773)
at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:737)
at sun.reflect.GeneratedMethodAccessor15.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:141)
at org.jboss.mx.server.Invocation.dispatch(Invocation.java:80)
at org.jboss.mx.interceptor.AbstractInterceptor.invoke(AbstractInterceptor.java:118)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:74)
at org.jboss.mx.interceptor.ModelMBeanOperationInterceptor.invoke(ModelMBeanOperationInterce
ptor.java:127)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:74)
at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:245)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:644)
at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:176)
at $Proxy6.deploy(Unknown Source)
at org.jboss.deployment.scanner.URLDeploymentScanner.deploy(URLDeploymentScanner.java:319)
at org.jboss.deployment.scanner.URLDeploymentScanner.scan(URLDeploymentScanner.java:489)
at org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread.doScan(AbstractDeplo
ymentScanner.java:192)
at org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread.loop(AbstractDeploym
entScanner.java:203)
at org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread.run(AbstractDeployme
ntScanner.java:182)
Caused by: java.lang.ClassNotFoundException: No ClassLoaders found for: de.eyetea.smartea.entity.adm
in.RoleDefinition
at org.jboss.mx.loading.LoadMgr3.beginLoadTask(LoadMgr3.java:292)
at org.jboss.mx.loading.RepositoryClassLoader.loadClassImpl(RepositoryClassLoader.java:475)
at org.jboss.mx.loading.RepositoryClassLoader.loadClass(RepositoryClassLoader.java:377)
at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
at org.hibernate.ejb.HibernatePersistence.addNamedAnnotatedClasses(HibernatePersistence.java
:549)
... 52 more
18:23:52,660 INFO [EJB3Deployer] Deployed: file:/D:/jboss/jboss-4.0.3RC2/server/default/deploy/smar
tea.ear/smartea.par/
18:23:52,670 INFO [EARDeployer] Started J2EE application: file:/D:/jboss/jboss-4.0.3RC2/server/defa
ult/deploy/smartea.ear/