I have the following configuration which is working in WildFly 8 with Hibernate Search:

<cache-container name="hibernateSearch" default-cache="LuceneIndexesData">
    <transport lock-timeout="330000"/>
    <replicated-cache name="LuceneIndexesMetadata" mode="SYNC" remote-timeout="330000">
        <locking striping="false" acquire-timeout="330000" concurrency-level="500"/>
        <transaction mode="NONE"/>
        <eviction strategy="NONE" max-entries="-1"/>
        <expiration max-idle="-1"/>
        <state-transfer enabled="true" timeout="480000"/>
        <file-store preload="true" purge="false" passivation="false" relative-to="jboss.home.dir"
                    path="standalone/data/infinispan-file-store">
            <write-behind/>
        </file-store>
        <indexing index="NONE"/>
    </replicated-cache>
    <replicated-cache name="LuceneIndexesData" mode="SYNC" remote-timeout="25000">
        <locking striping="false" acquire-timeout="330000" concurrency-level="500"/>
        <transaction mode="NONE"/>
        <eviction strategy="NONE" max-entries="-1"/>
        <expiration max-idle="-1"/>
        <state-transfer enabled="true" timeout="480000"/>
        <file-store preload="true" purge="false" passivation="false" relative-to="jboss.home.dir"
                    path="standalone/data/infinispan-file-store">
            <write-behind/>
        </file-store>
        <indexing index="NONE"/>
    </replicated-cache>
    <replicated-cache name="LuceneIndexesLocking" mode="SYNC" remote-timeout="25000">
        <locking striping="false" acquire-timeout="330000" concurrency-level="500"/>
        <transaction mode="NONE"/>
        <eviction strategy="NONE" max-entries="-1"/>
        <expiration max-idle="-1"/>
        <state-transfer enabled="true" timeout="480000"/>
        <indexing index="NONE"/>
    </replicated-cache>
</cache-container>

When if I try to run this same configuration on WildFly 9 it gives the following exception:

20:57:31,021 ERROR [org.jboss.msc.service.fail] (ServerService Thread Pool -- 23) MSC000001: Failed to start service jboss.persistenceunit."application-1.0-SNAPSHOT-exploded.war#searchexperiment": org.jboss.msc.service.StartException in service jboss.persistenceunit."application-1.0-SNAPSHOT-exploded.war#searchexperiment": org.hibernate.search.exception.SearchException: HSEARCH000103: Unable to initialize IndexManager named 'com.wirelust.experiment.hibernatesearch.model.City'
  at org.jboss.as.jpa.service.PersistenceUnitServiceImpl$1$1.run(PersistenceUnitServiceImpl.java:172)
  at org.jboss.as.jpa.service.PersistenceUnitServiceImpl$1$1.run(PersistenceUnitServiceImpl.java:117)
  at org.wildfly.security.manager.WildFlySecurityManager.doChecked(WildFlySecurityManager.java:665)
  at org.jboss.as.jpa.service.PersistenceUnitServiceImpl$1.run(PersistenceUnitServiceImpl.java:182)
  at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
  at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
  at java.lang.Thread.run(Thread.java:745)
  at org.jboss.threads.JBossThread.run(JBossThread.java:320)
Caused by: org.hibernate.search.exception.SearchException: HSEARCH000103: Unable to initialize IndexManager named 'com.wirelust.experiment.hibernatesearch.model.City'
  at org.hibernate.search.indexes.impl.IndexManagerHolder.createIndexManager(IndexManagerHolder.java:260)
  at org.hibernate.search.indexes.impl.IndexManagerHolder.createIndexManager(IndexManagerHolder.java:513)
  at org.hibernate.search.indexes.impl.IndexManagerHolder.createIndexManagers(IndexManagerHolder.java:482)
  at org.hibernate.search.indexes.impl.IndexManagerHolder.buildEntityIndexBinding(IndexManagerHolder.java:91)
  at org.hibernate.search.spi.SearchIntegratorBuilder.initDocumentBuilders(SearchIntegratorBuilder.java:358)
  at org.hibernate.search.spi.SearchIntegratorBuilder.buildNewSearchFactory(SearchIntegratorBuilder.java:199)
  at org.hibernate.search.spi.SearchIntegratorBuilder.buildSearchIntegrator(SearchIntegratorBuilder.java:117)
  at org.hibernate.search.hcore.impl.HibernateSearchSessionFactoryObserver.sessionFactoryCreated(HibernateSearchSessionFactoryObserver.java:66)
  at org.hibernate.internal.SessionFactoryObserverChain.sessionFactoryCreated(SessionFactoryObserverChain.java:52)
  at org.hibernate.internal.SessionFactoryImpl.<init>(SessionFactoryImpl.java:588)
  at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1859)
  at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl$4.perform(EntityManagerFactoryBuilderImpl.java:857)
  at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl$4.perform(EntityManagerFactoryBuilderImpl.java:850)
  at org.hibernate.boot.registry.classloading.internal.ClassLoaderServiceImpl.withTccl(ClassLoaderServiceImpl.java:425)
  at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:849)
  at org.jboss.as.jpa.hibernate4.TwoPhaseBootstrapImpl.build(TwoPhaseBootstrapImpl.java:44)
  at org.jboss.as.jpa.service.PersistenceUnitServiceImpl$1$1.run(PersistenceUnitServiceImpl.java:154)
  ... 7 more
Caused by: org.infinispan.commons.marshall.NotSerializableException: Object of type class org.infinispan.lucene.FileListCacheKey expected to be marshallable

This error only happens when using file-store.

Is this not supported for Lucene File System anymore?

Or is is there something specific I have to do to configure it?

Is this a question for the Hibernate Search team and not the Infinispan team?