Error replicating HTTP session

11:58:01,354 WARN  [org.jboss.as.clustering.web.infinispan.DistributedCacheManager] (http-localhost-127.0.0.1-8180-1) Problem accessing session [s3****wUfYTi]: java.lang.RuntimeException: Failed to load session attributes for session: s3****wUfYTi
11:58:01,355 DEBUG [org.jboss.as.clustering.web.infinispan.DistributedCacheManager] (http-localhost-127.0.0.1-8180-1) Problem accessing session [s3****wUfYTi]: java.lang.RuntimeException: Failed to load session attributes for session: s3****wUfYTi: java.lang.RuntimeException: Failed to load session attributes for session: s3****wUfYTi
        at org.jboss.as.clustering.web.infinispan.DistributedCacheManager.getRuntimeException(DistributedCacheManager.java:82)
        at org.jboss.as.clustering.web.infinispan.DistributedCacheManager$3.invoke(DistributedCacheManager.java:285)
        at org.jboss.as.clustering.web.infinispan.DistributedCacheManager$3.invoke(DistributedCacheManager.java:268)
        at org.jboss.as.clustering.infinispan.invoker.RetryingCacheInvoker.invoke(RetryingCacheInvoker.java:67)
        at org.jboss.as.clustering.web.infinispan.DistributedCacheManager.getData(DistributedCacheManager.java:294)
        at org.jboss.as.clustering.web.infinispan.DistributedCacheManager.getSessionData(DistributedCacheManager.java:250)
        at org.jboss.as.web.session.DistributableSessionManager.loadSession(DistributableSessionManager.java:1407) [jboss-as-web-7.1.0.Alpha2-SNAPSHOT.jar:7.1.0.Alpha2-SNAPSHOT]
        at org.jboss.as.web.session.DistributableSessionManager.findSession(DistributableSessionManager.java:698) [jboss-as-web-7.1.0.Alpha2-SNAPSHOT.jar:7.1.0.Alpha2-SNAPSHOT]
        at org.jboss.as.web.session.DistributableSessionManager.findSession(DistributableSessionManager.java:84) [jboss-as-web-7.1.0.Alpha2-SNAPSHOT.jar:7.1.0.Alpha2-SNAPSHOT]
        at org.apache.catalina.connector.Request.doGetSession(Request.java:2618) [jbossweb-7.0.1.Final.jar:7.1.0.Alpha2-SNAPSHOT]
        at org.apache.catalina.connector.Request.getSession(Request.java:2375) [jbossweb-7.0.1.Final.jar:7.1.0.Alpha2-SNAPSHOT]
        at org.apache.catalina.connector.RequestFacade.getSession(RequestFacade.java:841) [jbossweb-7.0.1.Final.jar:7.1.0.Alpha2-SNAPSHOT]
        at org.jboss.weld.context.beanstore.http.LazySessionBeanStore.getSession(LazySessionBeanStore.java:68) [weld-core-1.1.3-SNAPSHOT.jar:2011-09-22 11:39]
        at org.jboss.weld.context.beanstore.http.LazySessionBeanStore.<init>(LazySessionBeanStore.java:60) [weld-core-1.1.3-SNAPSHOT.jar:2011-09-22 11:39]
        at org.jboss.weld.context.http.HttpSessionContextImpl.associate(HttpSessionContextImpl.java:36) [weld-core-1.1.3-SNAPSHOT.jar:2011-09-22 11:39]
        at org.jboss.weld.context.http.HttpSessionContextImpl.associate(HttpSessionContextImpl.java:17) [weld-core-1.1.3-SNAPSHOT.jar:2011-09-22 11:39]
        at org.jboss.weld.servlet.WeldListener.requestInitialized(WeldListener.java:154) [weld-core-1.1.3-SNAPSHOT.jar:2011-09-22 11:39]
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:142) [jbossweb-7.0.1.Final.jar:7.1.0.Alpha2-SNAPSHOT]
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) [jbossweb-7.0.1.Final.jar:7.1.0.Alpha2-SNAPSHOT]
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) [jbossweb-7.0.1.Final.jar:7.1.0.Alpha2-SNAPSHOT]
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:362) [jbossweb-7.0.1.Final.jar:7.1.0.Alpha2-SNAPSHOT]
        at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:877) [jbossweb-7.0.1.Final.jar:7.1.0.Alpha2-SNAPSHOT]
        at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:667) [jbossweb-7.0.1.Final.jar:7.1.0.Alpha2-SNAPSHOT]
        at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:952) [jbossweb-7.0.1.Final.jar:7.1.0.Alpha2-SNAPSHOT]
        at java.lang.Thread.run(Thread.java:662) [:1.6.0_24]
Caused by: java.lang.ClassNotFoundException: org.jboss.interceptor.spi.model.InterceptionModel from [Module "deployment.weld-numberguess.war:main" from Service Module Loader]
        at org.jboss.modules.ModuleClassLoader.findClass(ModuleClassLoader.java:191)
        at org.jboss.modules.ConcurrentClassLoader.performLoadClassChecked(ConcurrentClassLoader.java:361)
        at org.jboss.modules.ConcurrentClassLoader.performLoadClassChecked(ConcurrentClassLoader.java:333)
        at org.jboss.modules.ConcurrentClassLoader.performLoadClass(ConcurrentClassLoader.java:310)
        at org.jboss.modules.ConcurrentClassLoader.loadClass(ConcurrentClassLoader.java:103)
        at java.lang.Class.forName0(Native Method) [:1.6.0_24]
        at java.lang.Class.forName(Class.java:247) [:1.6.0_24]
        at org.jboss.marshalling.AbstractClassResolver.loadClass(AbstractClassResolver.java:135)
        at org.jboss.marshalling.AbstractClassResolver.resolveClass(AbstractClassResolver.java:116)
        at org.jboss.marshalling.river.RiverUnmarshaller.doReadClassDescriptor(RiverUnmarshaller.java:868)
        at org.jboss.marshalling.river.RiverUnmarshaller.doReadClassDescriptor(RiverUnmarshaller.java:898)
        at org.jboss.marshalling.river.RiverUnmarshaller.doReadNewObject(RiverUnmarshaller.java:1200)
        at org.jboss.marshalling.river.RiverUnmarshaller.doReadObject(RiverUnmarshaller.java:272)
        at org.jboss.marshalling.river.RiverUnmarshaller.doReadObject(RiverUnmarshaller.java:209)
        at org.jboss.marshalling.river.RiverUnmarshaller.readFields(RiverUnmarshaller.java:1673)
        at org.jboss.marshalling.river.RiverUnmarshaller.doInitSerializable(RiverUnmarshaller.java:1589)
        at org.jboss.marshalling.river.RiverUnmarshaller.doReadNewObject(RiverUnmarshaller.java:1231)
        at org.jboss.marshalling.river.RiverUnmarshaller.doReadObject(RiverUnmarshaller.java:272)
        at org.jboss.marshalling.river.RiverUnmarshaller.doReadObject(RiverUnmarshaller.java:209)
        at org.jboss.marshalling.river.RiverUnmarshaller.readFields(RiverUnmarshaller.java:1673)
        at org.jboss.marshalling.river.RiverUnmarshaller.doInitSerializable(RiverUnmarshaller.java:1589)
        at org.jboss.marshalling.river.RiverUnmarshaller.doReadNewObject(RiverUnmarshaller.java:1231)
        at org.jboss.marshalling.river.RiverUnmarshaller.doReadObject(RiverUnmarshaller.java:272)
        at org.jboss.marshalling.river.RiverUnmarshaller.doReadObject(RiverUnmarshaller.java:209)
        at org.jboss.marshalling.river.RiverUnmarshaller.readFields(RiverUnmarshaller.java:1673)
        at org.jboss.marshalling.river.RiverUnmarshaller.doInitSerializable(RiverUnmarshaller.java:1589)
        at org.jboss.marshalling.river.RiverUnmarshaller.doInitSerializable(RiverUnmarshaller.java:1553)
        at org.jboss.marshalling.river.RiverUnmarshaller.doReadNewObject(RiverUnmarshaller.java:1231)
        at org.jboss.marshalling.river.RiverUnmarshaller.doReadObject(RiverUnmarshaller.java:272)
        at org.jboss.marshalling.river.RiverUnmarshaller.doReadObject(RiverUnmarshaller.java:209)
        at org.jboss.marshalling.river.RiverUnmarshaller.readFields(RiverUnmarshaller.java:1673)
        at org.jboss.marshalling.river.RiverUnmarshaller.doInitSerializable(RiverUnmarshaller.java:1589)
        at org.jboss.marshalling.river.RiverUnmarshaller.doReadNewObject(RiverUnmarshaller.java:1231)
        at org.jboss.marshalling.river.RiverUnmarshaller.doReadObject(RiverUnmarshaller.java:272)
        at org.jboss.marshalling.river.RiverUnmarshaller.doReadObject(RiverUnmarshaller.java:209)
        at org.jboss.marshalling.river.RiverUnmarshaller.doReadCollectionObject(RiverUnmarshaller.java:180)
        at org.jboss.marshalling.river.RiverUnmarshaller.readCollectionData(RiverUnmarshaller.java:769)
        at org.jboss.marshalling.river.RiverUnmarshaller.doReadObject(RiverUnmarshaller.java:649)
        at org.jboss.marshalling.river.RiverUnmarshaller.doReadObject(RiverUnmarshaller.java:209)
        at org.jboss.marshalling.river.RiverUnmarshaller.readFields(RiverUnmarshaller.java:1673)
        at org.jboss.marshalling.river.RiverUnmarshaller.doInitSerializable(RiverUnmarshaller.java:1589)
        at org.jboss.marshalling.river.RiverUnmarshaller.doInitSerializable(RiverUnmarshaller.java:1553)
        at org.jboss.marshalling.river.RiverUnmarshaller.doReadNewObject(RiverUnmarshaller.java:1231)
        at org.jboss.marshalling.river.RiverUnmarshaller.doReadObject(RiverUnmarshaller.java:272)
        at org.jboss.marshalling.river.RiverUnmarshaller.doReadObject(RiverUnmarshaller.java:209)
        at org.jboss.marshalling.river.RiverUnmarshaller.readFields(RiverUnmarshaller.java:1673)
        at org.jboss.marshalling.river.RiverUnmarshaller.doInitSerializable(RiverUnmarshaller.java:1589)
        at org.jboss.marshalling.river.RiverUnmarshaller.doReadNewObject(RiverUnmarshaller.java:1231)
        at org.jboss.marshalling.river.RiverUnmarshaller.doReadObject(RiverUnmarshaller.java:272)
        at org.jboss.marshalling.river.RiverUnmarshaller.doReadObject(RiverUnmarshaller.java:209)
        at org.jboss.marshalling.river.RiverUnmarshaller.readFields(RiverUnmarshaller.java:1673)
        at org.jboss.marshalling.river.RiverUnmarshaller.doInitSerializable(RiverUnmarshaller.java:1589)
        at org.jboss.marshalling.river.RiverUnmarshaller.doReadNewObject(RiverUnmarshaller.java:1231)
        at org.jboss.marshalling.river.RiverUnmarshaller.doReadObject(RiverUnmarshaller.java:272)
        at org.jboss.marshalling.river.RiverUnmarshaller.doReadObject(RiverUnmarshaller.java:209)
        at org.jboss.marshalling.river.RiverUnmarshaller.doReadMapObject(RiverUnmarshaller.java:195)
        at org.jboss.marshalling.river.RiverUnmarshaller.readMapData(RiverUnmarshaller.java:791)
        at org.jboss.marshalling.river.RiverUnmarshaller.doReadObject(RiverUnmarshaller.java:682)
        at org.jboss.marshalling.river.RiverUnmarshaller.doReadObject(RiverUnmarshaller.java:209)
        at org.jboss.marshalling.AbstractObjectInput.readObject(AbstractObjectInput.java:37)
        at org.jboss.as.clustering.SimpleMarshalledValue.get(SimpleMarshalledValue.java:92)
        at org.jboss.as.clustering.web.impl.SessionAttributeMarshallerImpl.unmarshal(SessionAttributeMarshallerImpl.java:70)
        at org.jboss.as.clustering.web.infinispan.CoarseSessionAttributeStorage.load(CoarseSessionAttributeStorage.java:65)
        at org.jboss.as.clustering.web.infinispan.DistributedCacheManager$3.invoke(DistributedCacheManager.java:283)
        ... 23 more