Hi there, when I start the JBoss AS with my application, I get this error after some minutes. 15:04:22,046 ERROR [STDERR] Exception in thread "SFSB Passivation Thread - jboss.j2ee:ear=ares.ear,jar=ares.jar,name=SelectOneMenuHelperAction,service=EJB3" | 15:04:22,046 ERROR [STDERR] java.lang.NoClassDefFoundError: javax/portlet/PortletContext | 15:04:22,046 ERROR [STDERR] at java.lang.Class.getDeclaredConstructors0(Native Method) | 15:04:22,046 ERROR [STDERR] at java.lang.Class.privateGetDeclaredConstructors(Class.java:2357) | 15:04:22,046 ERROR [STDERR] at java.lang.Class.getConstructor0(Class.java:2671) | 15:04:22,046 ERROR [STDERR] at java.lang.Class.getDeclaredConstructor(Class.java:1953) | 15:04:22,046 ERROR [STDERR] at org.jboss.serial.classmetamodel.SunConstructorManager.getConstructor(SunConstructorManager.java:70) | 15:04:22,046 ERROR [STDERR] at org.jboss.serial.classmetamodel.ClassMetaData.findConstructor(ClassMetaData.java:381) | 15:04:22,046 ERROR [STDERR] at org.jboss.serial.classmetamodel.ClassMetaData.<init>(ClassMetaData.java:127) | 15:04:22,046 ERROR [STDERR] at org.jboss.serial.classmetamodel.ClassMetamodelFactory.getClassMetaData(ClassMetamodelFactory.java:335) | 15:04:22,046 ERROR [STDERR] at org.jboss.serial.objectmetamodel.ObjectDescriptorFactory.describeObject(ObjectDescriptorFactory.java:171) | 15:04:22,046 ERROR [STDERR] at org.jboss.serial.objectmetamodel.DataContainer$DataContainerDirectOutput.writeObject(DataContainer.java:202) | 15:04:22,046 ERROR [STDERR] at org.jboss.serial.persister.RegularObjectPersister.writeSlotWithFields(RegularObjectPersister.java:182) | 15:04:22,062 ERROR [STDERR] at org.jboss.serial.persister.RegularObjectPersister.defaultWrite(RegularObjectPersister.java:90) | 15:04:22,062 ERROR [STDERR] at org.jboss.serial.persister.RegularObjectPersister.writeData(RegularObjectPersister.java:62) | 15:04:22,062 ERROR [STDERR] at org.jboss.serial.objectmetamodel.ObjectDescriptorFactory.describeObject(ObjectDescriptorFactory.java:275) | 15:04:22,062 ERROR [STDERR] at org.jboss.serial.objectmetamodel.DataContainer$DataContainerDirectOutput.writeObject(DataContainer.java:202) | 15:04:22,062 ERROR [STDERR] at org.jboss.serial.persister.ArrayPersister.saveObjectArray(ArrayPersister.java:110) | 15:04:22,062 ERROR [STDERR] at org.jboss.serial.persister.ArrayPersister.writeData(ArrayPersister.java:101) | 15:04:22,062 ERROR [STDERR] at org.jboss.serial.objectmetamodel.ObjectDescriptorFactory.describeObject(ObjectDescriptorFactory.java:275) | 15:04:22,062 ERROR [STDERR] at org.jboss.serial.objectmetamodel.DataContainer$DataContainerDirectOutput.writeObject(DataContainer.java:202) | 15:04:22,062 ERROR [STDERR] at org.jboss.serial.io.JBossObjectOutputStream.writeObjectOverride(JBossObjectOutputStream.java:181) | 15:04:22,062 ERROR [STDERR] at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:298) | 15:04:22,062 ERROR [STDERR] at org.jboss.serial.io.MarshalledObject.<init>(MarshalledObject.java:51) | 15:04:22,062 ERROR [STDERR] at org.jboss.ejb3.stateful.StatefulBeanContext.writeExternal(StatefulBeanContext.java:401) | 15:04:22,062 ERROR [STDERR] at org.jboss.serial.persister.ExternalizePersister.writeData(ExternalizePersister.java:58) | 15:04:22,062 ERROR [STDERR] at org.jboss.serial.objectmetamodel.ObjectDescriptorFactory.describeObject(ObjectDescriptorFactory.java:275) | 15:04:22,062 ERROR [STDERR] at org.jboss.serial.objectmetamodel.DataContainer$DataContainerDirectOutput.writeObject(DataContainer.java:202) | 15:04:22,062 ERROR [STDERR] at org.jboss.serial.io.JBossObjectOutputStream.writeObjectOverride(JBossObjectOutputStream.java:181) | 15:04:22,062 ERROR [STDERR] at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:298) | 15:04:22,062 ERROR [STDERR] at org.jboss.ejb3.cache.simple.StatefulSessionFilePersistenceManager.passivateSession(StatefulSessionFilePersistenceManager.java:347) | 15:04:22,062 ERROR [STDERR] at org.jboss.ejb3.cache.simple.SimpleStatefulCache.passivate(SimpleStatefulCache.java:194) | 15:04:22,062 ERROR [STDERR] at org.jboss.ejb3.cache.simple.SimpleStatefulCache$SessionTimeoutTask.run(SimpleStatefulCache.java:129) I found "PortletContext" in the "portlet-api-lib.jar" and put it in my ear file, but this didn't solve the problem. i don't know what's wrong. Can anybody help me? Regards Newlukai View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3976305#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...