16:12:54,194 ERROR [org.jboss.msc.service.fail] (MSC service thread 1-2) MSC00001: Failed to start service jboss.deployment.unit."ejb3-example.jar".INSTALL: org.jboss.msc.service.StartException in service jboss.deployment.unit."ejb3-example.jar".INSTALL: Failed to process phase INSTALL of deployment "ejb3-example.jar"
	at org.jboss.as.server.deployment.DeploymentUnitPhaseService.start(DeploymentUnitPhaseService.java:108)
	at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1344)
	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) [:1.6.0_21]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) [:1.6.0_21]
	at java.lang.Thread.run(Thread.java:619) [:1.6.0_21]
Caused by: java.lang.NullPointerException
	at org.jboss.as.ejb3.component.session.SessionBeanComponentConfiguration.addMethodApplicableLockType(SessionBeanComponentConfiguration.java:139)
	at org.jboss.as.ejb3.component.session.SessionBeanComponentDescription.prepareLockConfiguration(SessionBeanComponentDescription.java:263)
	at org.jboss.as.ejb3.component.session.SessionBeanComponentDescription.prepareComponentConfiguration(SessionBeanComponentDescription.java:236)
	at org.jboss.as.ee.component.AbstractComponentDescription.createComponentConfiguration(AbstractComponentDescription.java:366)
	at org.jboss.as.ee.component.ComponentInstallProcessor.deploy(ComponentInstallProcessor.java:81)
	at org.jboss.as.server.deployment.DeploymentUnitPhaseService.start(DeploymentUnitPhaseService.java:102)
	... 4 more