ejb-jar.xml doesn't need to define a session-type

21:56:21,759 ERROR [org.jboss.msc.service.fail] (MSC service thread 1-4) MSC00001: Failed to start service jboss.deployment.unit."ejbembed_vehicle_ejb.jar".PARSE: org.jboss.msc.service.StartException in service jboss.deployment.unit."ejbembed_vehicle_ejb.jar".PARSE: Failed to process phase PARSE of deployment "ejbembed_vehicle_ejb.jar"
	at org.jboss.as.server.deployment.DeploymentUnitPhaseService.start(DeploymentUnitPhaseService.java:121)
	at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1675)
	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) [:1.6.0_20]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) [:1.6.0_20]
	at java.lang.Thread.run(Thread.java:619) [:1.6.0_20]
Caused by: org.jboss.as.server.deployment.DeploymentUnitProcessingException: Unknown session-type for session bean: EJBContextBean in deployment unit: deployment "ejbembed_vehicle_ejb.jar"
	at org.jboss.as.ejb3.deployment.processors.dd.SessionBeanXmlDescriptorProcessor.processBeanMetaData(SessionBeanXmlDescriptorProcessor.java:96)
	at org.jboss.as.ejb3.deployment.processors.dd.SessionBeanXmlDescriptorProcessor.processBeanMetaData(SessionBeanXmlDescriptorProcessor.java:64)
	at org.jboss.as.ejb3.deployment.processors.dd.AbstractEjbXmlDescriptorProcessor.deploy(AbstractEjbXmlDescriptorProcessor.java:78)
	at org.jboss.as.server.deployment.DeploymentUnitPhaseService.start(DeploymentUnitPhaseService.java:115)
	... 4 more