"Failed to Create Component Instance" when using EntityRepository

I have code being deployed to Wildfly 8.0.0 that makes use of an EntityRepository from the Deltaspike Data Module, injected into a stateless EJB. When I attempt to call a method within the code, I get the following Exception:

Caused by: java.lang.IllegalStateException: JBAS011048: Failed to construct component instance
at org.jboss.as.ee.component.BasicComponent.constructComponentInstance(BasicComponent.java:162)
at org.jboss.as.ee.component.BasicComponent.constructComponentInstance(BasicComponent.java:133)
at org.jboss.as.ee.component.BasicComponent.createInstance(BasicComponent.java:89)
at org.jboss.as.ejb3.component.interceptors.NonPooledEJBComponentInstanceAssociatingInterceptor.processInvocation(NonPooledEJBComponentInstanceAssociatingInterceptor.java:53) [wildfly-ejb3-8.0.0.Final.jar:8.0.0.Final]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:309)
at org.jboss.as.ejb3.tx.CMTTxInterceptor.invokeInOurTx(CMTTxInterceptor.java:273) [wildfly-ejb3-8.0.0.Final.jar:8.0.0.Final]
... 100 more

...

Caused by: java.lang.IllegalStateException: JBAS014237: Only session and message-driven beans with bean-managed transaction demarcation are allowed to access UserTransaction
at org.jboss.as.ejb3.component.allowedmethods.AllowedMethodsInformation.realCheckPermission(AllowedMethodsInformation.java:138) [wildfly-ejb3-8.0.0.Final.jar:8.0.0.Final]
at org.jboss.as.ejb3.component.allowedmethods.AllowedMethodsInformation.checkAllowed(AllowedMethodsInformation.java:112) [wildfly-ejb3-8.0.0.Final.jar:8.0.0.Final]
at org.jboss.as.ejb3.subsystem.EJB3UserTransactionAccessControlService$1.authorizeAccess(EJB3UserTransactionAccessControlService.java:53) [wildfly-ejb3-8.0.0.Final.jar:8.0.0.Final]
at org.jboss.as.txn.service.UserTransactionAccessControlService.authorizeAccess(UserTransactionAccessControlService.java:83)
at org.jboss.as.txn.service.UserTransactionBindingService$1.getReference(UserTransactionBindingService.java:71)
at org.jboss.as.naming.ServiceBasedNamingStore.lookup(ServiceBasedNamingStore.java:140)
... 198 more

This code worked flawlessly on JBoss EAP 6.2, so it appears to be something specific to Wildfly. It has not been modified at all. However, if I remove references to my EntityRepository and re-run my code it works without issue.