java.lang.AssertionError: PurgeAllLuceneWork: org.infinispan.query.test.Person java.lang.NullPointerException
	at org.hibernate.search.elasticsearch.work.impl.DefaultElasticsearchRequestSuccessAssessor.isSuccess(DefaultElasticsearchRequestSuccessAssessor.java:119)
	at org.hibernate.search.elasticsearch.work.impl.DefaultElasticsearchRequestSuccessAssessor.checkSuccess(DefaultElasticsearchRequestSuccessAssessor.java:88)
	at org.hibernate.search.elasticsearch.work.impl.SimpleElasticsearchWork.execute(SimpleElasticsearchWork.java:71)
	at org.hibernate.search.elasticsearch.processor.impl.ElasticsearchWorkProcessor.executeSafely(ElasticsearchWorkProcessor.java:126)
	at org.hibernate.search.elasticsearch.processor.impl.ElasticsearchWorkProcessor.executeSafely(ElasticsearchWorkProcessor.java:114)
	at org.hibernate.search.elasticsearch.processor.impl.ElasticsearchWorkProcessor.executeSyncSafe(ElasticsearchWorkProcessor.java:87)
	at org.hibernate.search.elasticsearch.impl.ElasticsearchIndexManager.performOperations(ElasticsearchIndexManager.java:433)
	at org.hibernate.search.backend.impl.LocalBackendQueueProcessor.applyWork(LocalBackendQueueProcessor.java:38)
	at org.hibernate.search.backend.impl.WorkQueuePerIndexSplitter.commitOperations(WorkQueuePerIndexSplitter.java:46)
	at org.hibernate.search.backend.impl.BatchedQueueingProcessor.performWorks(BatchedQueueingProcessor.java:83)
	at org.hibernate.search.backend.impl.PerTransactionWorker.performWork(PerTransactionWorker.java:87)
	at org.infinispan.query.backend.QueryInterceptor.performSearchWorks(QueryInterceptor.java:243)
	at org.infinispan.query.backend.QueryInterceptor.purgeAllIndexes(QueryInterceptor.java:215)
	at org.infinispan.query.backend.QueryInterceptor.processClearCommand(QueryInterceptor.java:489)

{
   "took":5,
   "timed_out":false,
   "total":3,
   "deleted":0,
   "batches":1,
   "version_conflicts":3,
   "noops":0,
   "retries":{
      "bulk":0,
      "search":0
   },
   "throttled_millis":0,
   "requests_per_second":-1.0,
   "throttled_until_millis":0,
   "failures":[
      {
         "index":"person",
         "type":"org.infinispan.query.test.Person",
         "id":"S:Navin",
         "cause":{
            "type":"version_conflict_engine_exception",
            "reason":"[org.infinispan.query.test.Person][S:Navin]: version conflict, current version [2] is different than the one provided [1]",
            "index_uuid":"hzQ2rk7STGSYwMeOzwDD6A",
            "shard":"1",
            "index":"person"
         },
         "status":409
      },
      {
         "index":"person",
         "type":"org.infinispan.query.test.Person",
         "id":"S:MiniGoat",
         "cause":{
            "type":"version_conflict_engine_exception",
            "reason":"[org.infinispan.query.test.Person][S:MiniGoat]: version conflict, current version [2] is different than the one provided [1]",
            "index_uuid":"hzQ2rk7STGSYwMeOzwDD6A",
            "shard":"3",
            "index":"person"
         },
         "status":409
      },
      {
         "index":"person",
         "type":"org.infinispan.query.test.Person",
         "id":"S:BigGoat",
         "cause":{
            "type":"version_conflict_engine_exception",
            "reason":"[org.infinispan.query.test.Person][S:BigGoat]: version conflict, current version [2] is different than the one provided [1]",
            "index_uuid":"hzQ2rk7STGSYwMeOzwDD6A",
            "shard":"4",
            "index":"person"
         },
         "status":409
      }
   ]
}