12:59:27,305 WARN  [org.wildfly.extension.undertow] (MSC service thread 1-1) JBAS017537: Failed to persist session attribute org.jboss.weld.context.http.HttpSessionContext#WELD|ManagedBean|jboss-as-mail.war-jboss-as-mail.war/WEB-INF/classes-org.jboss.as.quickstarts.mail.Email-null-false with value Bean: ForwardingBean email for Managed Bean [class org.jboss.as.quickstarts.mail.Email] with qualifiers [@Default @Any @Named]; Instance: org.jboss.as.quickstarts.mail.Email@532714b3; CreationalContext: org.jboss.weld.context.CreationalContextImpl@73b2b9da for session 9NSvCC8WUvfAWqXcO1J9TEDv: java.io.NotSerializableException: javax.mail.Session
	at org.jboss.marshalling.river.RiverMarshaller.doWriteObject(RiverMarshaller.java:894)
	at org.jboss.marshalling.river.RiverMarshaller.doWriteFields(RiverMarshaller.java:1066)
	at org.jboss.marshalling.river.RiverMarshaller.doWriteSerializableObject(RiverMarshaller.java:1022)
	at org.jboss.marshalling.river.RiverMarshaller.doWriteObject(RiverMarshaller.java:888)
	at org.jboss.marshalling.river.RiverMarshaller.doWriteFields(RiverMarshaller.java:1066)
	at org.jboss.marshalling.river.RiverMarshaller.doWriteSerializableObject(RiverMarshaller.java:1022)
	at org.jboss.marshalling.river.RiverMarshaller.doWriteObject(RiverMarshaller.java:888)
	at org.jboss.marshalling.AbstractObjectOutput.writeObject(AbstractObjectOutput.java:62)
	at org.jboss.marshalling.AbstractMarshaller.writeObject(AbstractMarshaller.java:115)
	at org.wildfly.extension.undertow.AbstractPersistentSessionManager.persistSessions(AbstractPersistentSessionManager.java:54)
	at io.undertow.servlet.handlers.SessionRestoringHandler.stop(SessionRestoringHandler.java:90) [undertow-servlet-1.0.0.CR4.jar:1.0.0.CR4]
	at io.undertow.servlet.core.DeploymentManagerImpl.stop(DeploymentManagerImpl.java:513) [undertow-servlet-1.0.0.CR4.jar:1.0.0.CR4]
	at org.wildfly.extension.undertow.deployment.UndertowDeploymentService.stopContext(UndertowDeploymentService.java:113)
	at org.wildfly.extension.undertow.deployment.UndertowDeploymentService.stop(UndertowDeploymentService.java:100)
	at org.jboss.msc.service.ServiceControllerImpl$StopTask.stopService(ServiceControllerImpl.java:2056)
	at org.jboss.msc.service.ServiceControllerImpl$StopTask.run(ServiceControllerImpl.java:2017)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [rt.jar:1.7.0_45]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [rt.jar:1.7.0_45]
	at java.lang.Thread.run(Thread.java:744) [rt.jar:1.7.0_45]
Caused by: an exception which occurred:
	in field mySession
	in field instance
in object org.jboss.weld.context.SerializableContextualInstanceImpl@44f62c8f