I'm trying to deploy my ear in deploy-hasingleton and keep getting this error. Anyone have any ideas?

Thanks

14:54:56,112 ERROR [HASingletonController] Controlled Singleton MBean failed to become master
javax.management.MBeanException
 at org.jboss.mx.interceptor.ReflectedDispatcher.handleInvocationExceptions(ReflectedDispatcher.jav
a:180)
 at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:163)
 at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
 at org.jboss.mx.interceptor.AbstractInterceptor.invoke(AbstractInterceptor.java:133)
 at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)
 at org.jboss.mx.interceptor.ModelMBeanOperationInterceptor.invoke(ModelMBeanOperationInterceptor.j
ava:142)
 at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)
 at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
 at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
 at org.jboss.ha.singleton.HASingletonController.invokeSingletonMBeanMethod(HASingletonController.j
ava:207)
 at org.jboss.ha.singleton.HASingletonController.startSingleton(HASingletonController.java:144)
 at org.jboss.ha.singleton.HASingletonSupport.startNewMaster(HASingletonSupport.java:267)
 at org.jboss.ha.singleton.HASingletonSupport.makeThisNodeMaster(HASingletonSupport.java:249)
 at org.jboss.ha.singleton.HASingletonSupport.partitionTopologyChanged(HASingletonSupport.java:191)

 at org.jboss.ha.jmx.HAServiceMBeanSupport$1.replicantsChanged(HAServiceMBeanSupport.java:247)
 at org.jboss.ha.framework.server.DistributedReplicantManagerImpl.notifyKeyListeners(DistributedRep
licantManagerImpl.java:846)