Race condition in QueryCache initialization

07:48:54,189 DEBUG [org.infinispan.interceptors.InterceptorChain] (Stressor-2) Interceptor chain size: 6
07:48:54,189 DEBUG [org.infinispan.interceptors.InterceptorChain] (Stressor-2) Interceptor chain is: 
        >> org.infinispan.interceptors.InvocationContextInterceptor
        >> org.infinispan.interceptors.CacheMgmtInterceptor
        >> org.infinispan.interceptors.NotificationInterceptor
        >> org.infinispan.interceptors.locking.NonTransactionalLockingInterceptor
        >> org.infinispan.interceptors.EntryWrappingInterceptor
        >> org.infinispan.interceptors.CallInterceptor
07:48:54,206 DEBUG [org.infinispan.jmx.JmxUtil] (Stressor-2) Object name org.infinispan:type=Cache,name="__query_cache__(local)",manager="DefaultCacheManager",component=Cache already registered
07:48:54,207 DEBUG [org.infinispan.CacheImpl] (Stressor-2) Started cache __query_cache__ on edg-perf10-33989
07:48:54,208 ERROR [org.radargun.stages.test.Stressor] (Stressor-8) Unexpected error in stressor!
java.lang.NullPointerException
        at org.infinispan.query.dsl.embedded.impl.QueryCache.get(QueryCache.java:58)
        at org.infinispan.query.dsl.embedded.impl.EmbeddedLuceneQueryBuilder.build(EmbeddedLuceneQueryBuilder.java:50)
        at org.infinispan.query.dsl.embedded.impl.EmbeddedLuceneQueryBuilder.build(EmbeddedLuceneQueryBuilder.java:20)
        at org.radargun.service.AbstractInfinispanQueryable$QueryBuilderImpl.build(AbstractInfinispanQueryable.java:169)
        at org.radargun.stages.cache.test.QueryStage$Logic.run(QueryStage.java:153)
        at org.radargun.stages.test.Stressor.runInternal(Stressor.java:75)
        at org.radargun.stages.test.Stressor.run(Stressor.java:53)