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                                        <table class="page-title-pattern" cellspacing="0" cellpadding="0" border="0" width="100%" style="border-collapse: collapse; mso-table-lspace: 0; mso-table-rspace: 0"> 
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                                                    <td class="page-title-pattern-first-line " style="padding: 0; border-collapse: collapse; font-family: Arial, sans-serif; font-size: 14px; padding-top: 10px"> <a href="https://hibernate.atlassian.net/browse/HSEARCH" style="color: #3b73af; text-decoration: none">Hibernate Search</a> / <a href="https://hibernate.atlassian.net/browse/HSEARCH-2742" style="color: #3b73af; text-decoration: none"><img src="cid:jira-generated-image-avatar-ef8ec305-7b70-4113-856c-67a94331f21e" height="16" width="16" border="0" align="absmiddle" alt="Bug" style="vertical-align: text-bottom"></a> <a href="https://hibernate.atlassian.net/browse/HSEARCH-2742" style="color: #3b73af; text-decoration: none">HSEARCH-2742</a> </td> 
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                                                    <th style="color: #707070; font: normal 14px/20px Arial, sans-serif; text-align: left; vertical-align: top; padding: 2px 0">Change By:</th> 
                                                    <td style="padding: 0; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> <a class="user-hover" rel="gustavonalle" id="email_gustavonalle" href="https://hibernate.atlassian.net/secure/ViewProfile.jspa?name=gustavonalle" style="color:#6c797f;; color: #3b73af; text-decoration: none">Gustavo Fernandes</a> </td> 
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                                    <td class="email-content-main mobile-expand  issue-description-container" style="padding: 0; border-collapse: collapse; border-left: 1px solid #cccccc; border-right: 1px solid #cccccc; border-top: 0; border-bottom: 0; padding: 0 15px 0 16px; background-color: #ffffff; padding-top: 5px; padding-bottom: 10px" bgcolor="#ffffff"> 
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                                                    <td class="text-paragraph-pattern-container mobile-resize-text " style="padding: 0; border-collapse: collapse; padding: 0 0 10px"> <span class="diffcontext">Stack trace: <br>{noformat}<br>java.lang.AssertionError: PurgeAllLuceneWork: org.infinispan.query.test.Person java.lang.NullPointerException<br> at org.hibernate.search.elasticsearch.work.impl.DefaultElasticsearchRequestSuccessAssessor.isSuccess(DefaultElasticsearchRequestSuccessAssessor.java:119)<br> at org.hibernate.search.elasticsearch.work.impl.DefaultElasticsearchRequestSuccessAssessor.checkSuccess(DefaultElasticsearchRequestSuccessAssessor.java:88)<br> at org.hibernate.search.elasticsearch.work.impl.SimpleElasticsearchWork.execute(SimpleElasticsearchWork.java:71)<br> at org.hibernate.search.elasticsearch.processor.impl.ElasticsearchWorkProcessor.executeSafely(ElasticsearchWorkProcessor.java:126)<br> at org.hibernate.search.elasticsearch.processor.impl.ElasticsearchWorkProcessor.executeSafely(ElasticsearchWorkProcessor.java:114)<br> at org.hibernate.search.elasticsearch.processor.impl.ElasticsearchWorkProcessor.executeSyncSafe(ElasticsearchWorkProcessor.java:87)<br> at org.hibernate.search.elasticsearch.impl.ElasticsearchIndexManager.performOperations(ElasticsearchIndexManager.java:433)<br> at org.hibernate.search.backend.impl.LocalBackendQueueProcessor.applyWork(LocalBackendQueueProcessor.java:38)<br> at org.hibernate.search.backend.impl.WorkQueuePerIndexSplitter.commitOperations(WorkQueuePerIndexSplitter.java:46)<br> at org.hibernate.search.backend.impl.BatchedQueueingProcessor.performWorks(BatchedQueueingProcessor.java:83)<br> at org.hibernate.search.backend.impl.PerTransactionWorker.performWork(PerTransactionWorker.java:87)<br> at org.infinispan.query.backend.QueryInterceptor.performSearchWorks(QueryInterceptor.java:243)<br> at org.infinispan.query.backend.QueryInterceptor.purgeAllIndexes(QueryInterceptor.java:215)<br> at org.infinispan.query.backend.QueryInterceptor.processClearCommand(QueryInterceptor.java:489)<br><br><br>{noformat}<br><br>This is the elasticsearch request:<br><br>{code:java}<br>request = {ElasticsearchRequest@10273} <br> method = "POST"<br> path = "/person/org.infinispan.query.test.Person/_delete_by_query/"<br> parameters = {Collections$EmptyMap@10283}&nbsp;&nbsp;size = 0<br> bodyParts = {Collections$UnmodifiableRandomAccessList@10285}&nbsp;&nbsp;size = 1<br>&nbsp;&nbsp;0 = {JsonObject@10287} "{"query":{"match_all":{}}}"<br>{code}<br><br>And this is what elasticsearch responded:<br><br>{noformat}<br>{<br>&nbsp;&nbsp;&nbsp;"took":5,<br>&nbsp;&nbsp;&nbsp;"timed_out":false,<br>&nbsp;&nbsp;&nbsp;"total":3,<br>&nbsp;&nbsp;&nbsp;"deleted":0,<br>&nbsp;&nbsp;&nbsp;"batches":1,<br>&nbsp;&nbsp;&nbsp;"version_conflicts":3,<br>&nbsp;&nbsp;&nbsp;"noops":0,<br>&nbsp;&nbsp;&nbsp;"retries":{<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;"bulk":0,<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;"search":0<br>&nbsp;&nbsp;&nbsp;},<br>&nbsp;&nbsp;&nbsp;"throttled_millis":0,<br>&nbsp;&nbsp;&nbsp;"requests_per_second":-1.0,<br>&nbsp;&nbsp;&nbsp;"throttled_until_millis":0,<br>&nbsp;&nbsp;&nbsp;"failures":[<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;{<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;"index":"person",<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;"type":"org.infinispan.query.test.Person",<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;"id":"S:Navin",<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;"cause":{<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;"type":"version_conflict_engine_exception",<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;"reason":"[org.infinispan.query.test.Person][S:Navin]: version conflict, current version [2] is different than the one provided [1]",<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;"index_uuid":"hzQ2rk7STGSYwMeOzwDD6A",<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;"shard":"1",<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;"index":"person"<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;},<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;"status":409<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;},<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;{<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;"index":"person",<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;"type":"org.infinispan.query.test.Person",<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;"id":"S:MiniGoat",<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;"cause":{<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;"type":"version_conflict_engine_exception",<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;"reason":"[org.infinispan.query.test.Person][S:MiniGoat]: version conflict, current version [2] is different than the one provided [1]",<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;"index_uuid":"hzQ2rk7STGSYwMeOzwDD6A",<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;"shard":"3",<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;"index":"person"<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;},<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;"status":409<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;},<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;{<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;"index":"person",<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;"type":"org.infinispan.query.test.Person",<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;"id":"S:BigGoat",<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;"cause":{<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;"type":"version_conflict_engine_exception",<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;"reason":"[org.infinispan.query.test.Person][S:BigGoat]: version conflict, current version [2] is different than the one provided [1]",<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;"index_uuid":"hzQ2rk7STGSYwMeOzwDD6A",<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;"shard":"4",<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;"index":"person"<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;},<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;"status":409<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;}<br>&nbsp;&nbsp;&nbsp;]<br>}<br>{noformat}<br><br>Not sure why ES is answering with a version conflict when I send a clear command. In any case, this kind of response is causing the NPE in the line<br><br>{code:java}<br>ignoredErrorTypes.contains( ROOT_ERROR_TYPE.get( parsedResponseBody ).getAsString() )<br>{code}</span> <span class="diffaddedchars" style="background-color:#ddfade;"><br><br><br>EDIT: <br><br>Even with that weird error above and the NPE, the index does get cleared</span> </td> 
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{
  "@context": "http://schema.org",
  "@type": "EmailMessage",
  "description": "View Issue",
  "potentialAction": {
    "@type": "ViewAction",
        "target": "https://hibernate.atlassian.net/browse/HSEARCH-2742?inbox=true&",
    "name": "View Issue"
      },
  "publisher": {
    "@type": "Organization",
    "name": "Atlassian",
    "url": "https://www.atlassian.com"
  }
}
</script> 
                                        <table id="actions-pattern" cellspacing="0" cellpadding="0" border="0" width="100%" style="border-collapse: collapse; mso-table-lspace: 0; mso-table-rspace: 0; font-family: Arial, sans-serif; font-size: 14px; line-height: 20px; mso-line-height-rule: exactly; mso-text-raise: 1px"> 
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                                                    <td id="actions-pattern-container" valign="middle" style="padding: 0; border-collapse: collapse; padding: 10px 0 10px 24px; vertical-align: middle; padding-left: 0"> 
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                                <!-- there needs to be content in the cell for it to render in some clients --> 
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                                    <td class="email-content-rounded-bottom mobile-expand" style="padding: 0; border-collapse: collapse; color: #ffffff; padding: 0 15px 0 16px; height: 5px; line-height: 5px; background-color: #ffffff; border-top: 0; border-left: 1px solid #cccccc; border-bottom: 1px solid #cccccc; border-right: 1px solid #cccccc; border-bottom-right-radius: 5px; border-bottom-left-radius: 5px; mso-line-height-rule: exactly" height="5" bgcolor="#ffffff">&nbsp;</td> 
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