NullPointerException during deployment with class level @EJB and lookup

If deploying a ejb3 SSB with a ejb reference to another bean (in my case an old ejb 2 SSB) with a mappedName-parameter, a NullPointerException occurs.

@EJBs(

{ @EJB(name = "ejb/MyOldEJB2LocalHome", beanInterface=MyOldEJB2LocalHome.class, beanName="oldejb.jar#MyOldEJB2", mappedName = "oldejb/MyOldEJB2Local"), }

)

Caused by: java.lang.NullPointerException
at org.jboss.as.ejb3.deployment.processors.EjbResourceInjectionAnnotationProcessor.process(EjbResourceInjectionA
nnotationProcessor.java:166)
at org.jboss.as.ejb3.deployment.processors.EjbResourceInjectionAnnotationProcessor.processClass(EjbResourceInjec
tionAnnotationProcessor.java:146)
at org.jboss.as.ejb3.deployment.processors.EjbResourceInjectionAnnotationProcessor.deploy(EjbResourceInjectionAn
notationProcessor.java:106)
at org.jboss.as.server.deployment.DeploymentUnitPhaseService.start(DeploymentUnitPhaseService.java:156)

Seems, if mappedName is declared, always a NullPointerException occurs.