ejb-jar.xml <interceptor-order> not supported

The following exception is thrown when using <interceptor-order> in an ejb-jar.xml.

Caused by: java.lang.NullPointerException
at org.jboss.ejb3.interceptor.InterceptorInfoRepository.initialiseDefaultInterceptors(InterceptorInfoRepository.java:433)
at org.jboss.ejb3.interceptor.InterceptorInfoRepository.initialise(InterceptorInfoRepository.java:115)
at org.jboss.ejb3.Ejb3HandlerFactory$DDFactory.<init>(Ejb3HandlerFactory.java:48)
at org.jboss.ejb3.Ejb3HandlerFactory.getInstance(Ejb3HandlerFactory.java:83)
at org.jboss.ejb3.Ejb3Deployment.deploy(Ejb3Deployment.java:611)
at org.jboss.ejb3.Ejb3Deployment.create(Ejb3Deployment.java:491)
at org.jboss.ejb3.deployers.Ejb3Deployer.deploy(Ejb3Deployer.java:182)

<assembly-descriptor>
<interceptor-binding>
<ejb-name>*</ejb-name>
<interceptor-order>
<interceptor-class>org.jboss.seam.ejb.SeamInterceptor</interceptor-class>
<interceptor-class>my.CustomInterceptor</interceptor-class>
</interceptor-order>
</interceptor-binding>
</assembly-descriptor>