since jbossjts was upgraded from 4.6.0.GA to 4.9.0.GA the Lucene directory demo throws exceptions about a missing ORB :

FATAL com.arjuna.ats.jts.logging.loggerI18N - [com.arjuna.ats.internal.jts.ORBManager] The ORB has not been initialized yet
Exception in thread "main" com.arjuna.ats.arjuna.exceptions.FatalError
at com.arjuna.ats.internal.jts.ORBManager.getPOA(ORBManager.java:94)
at com.arjuna.ats.internal.jts.OTSImpleManager.<clinit>(OTSImpleManager.java:332)
at com.arjuna.ats.internal.jta.transaction.jts.TransactionImple.getTransaction(TransactionImple.java:1239)
at com.arjuna.ats.internal.jta.transaction.jts.TransactionManagerImple.getTransaction(TransactionManagerImple.java:74)
at org.infinispan.context.InvocationContextContainerImpl.getRunningTx(InvocationContextContainerImpl.java:147)
at org.infinispan.context.InvocationContextContainerImpl.createInvocationContext(InvocationContextContainerImpl.java:57)
at org.infinispan.CacheDelegate.getInvocationContext(CacheDelegate.java:287)
at org.infinispan.CacheDelegate.get(CacheDelegate.java:199)
at org.infinispan.lucene.InfinispanDirectory.getFileList(InfinispanDirectory.java:220)
at org.infinispan.lucene.InfinispanDirectory.list(InfinispanDirectory.java:96)
at org.infinispan.lucene.InfinispanDirectory.listAll(InfinispanDirectory.java:263)