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NPE on search query phase Cannot invoke "java.util.List.iterator()" because "values" is null #131298

@piergm

Description

@piergm

Elasticsearch Version

current

Installed Plugins

No response

Java Version

bundled

OS Version

any

Problem Description

Failed to execute phase [query], all shards failed; shardFailures {[or5c1cU6SdGr5z05b_4X8w][.ds-logs-kubernetes.container_logs-default-2025.07.15-000001][0]: org.elasticsearch.transport.RemoteTransportException: [es-es-search-6cf9c9cc7f-cxvmg][100.66.94.112:9300][indices:data/read/search[phase/query]]
Caused by: org.elasticsearch.search.query.QueryPhaseExecutionException: Query Failed [Failed to execute main query]
Caused by: java.lang.NullPointerException: Cannot invoke "java.util.List.iterator()" because "values" is null
}
	at org.elasticsearch.server@9.2.0/org.elasticsearch.action.search.AbstractSearchAsyncAction.onPhaseFailure(AbstractSearchAsyncAction.java:624)
	at org.elasticsearch.server@9.2.0/org.elasticsearch.action.search.SearchQueryThenFetchAsyncAction.onPhaseFailure(SearchQueryThenFetchAsyncAction.java:81)
	at org.elasticsearch.server@9.2.0/org.elasticsearch.action.search.AbstractSearchAsyncAction.executeNextPhase(AbstractSearchAsyncAction.java:326)
	at org.elasticsearch.server@9.2.0/org.elasticsearch.action.search.AbstractSearchAsyncAction.onPhaseDone(AbstractSearchAsyncAction.java:669)
	at org.elasticsearch.server@9.2.0/org.elasticsearch.action.search.AbstractSearchAsyncAction.finishOneShard(AbstractSearchAsyncAction.java:430)
	at org.elasticsearch.server@9.2.0/org.elasticsearch.action.search.AbstractSearchAsyncAction.onShardFailure(AbstractSearchAsyncAction.java:422)
	at org.elasticsearch.server@9.2.0/org.elasticsearch.action.search.AbstractSearchAsyncAction$1.onFailure(AbstractSearchAsyncAction.java:279)
	at org.elasticsearch.server@9.2.0/org.elasticsearch.action.ActionListenerImplementations.safeAcceptException(ActionListenerImplementations.java:78)
	at org.elasticsearch.server@9.2.0/org.elasticsearch.action.ActionListenerImplementations.safeOnFailure(ActionListenerImplementations.java:89)
	at org.elasticsearch.server@9.2.0/org.elasticsearch.action.DelegatingActionListener.onFailure(DelegatingActionListener.java:32)
	at org.elasticsearch.server@9.2.0/org.elasticsearch.action.ActionListenerResponseHandler.handleException(ActionListenerResponseHandler.java:54)
	at org.elasticsearch.server@9.2.0/org.elasticsearch.action.search.SearchTransportService$ConnectionCountingHandler.handleException(SearchTransportService.java:598)
	at org.elasticsearch.server@9.2.0/org.elasticsearch.transport.TransportService$UnregisterChildTransportResponseHandler.handleException(TransportService.java:1727)
	at org.elasticsearch.server@9.2.0/org.elasticsearch.transport.TransportService$ContextRestoreResponseHandler.handleException(TransportService.java:1507)
	at org.elasticsearch.server@9.2.0/org.elasticsearch.transport.TransportService$DirectResponseChannel.processException(TransportService.java:1641)
	at org.elasticsearch.server@9.2.0/org.elasticsearch.transport.TransportService$DirectResponseChannel.sendResponse(TransportService.java:1616)
	at org.elasticsearch.server@9.2.0/org.elasticsearch.transport.TaskTransportChannel.sendResponse(TaskTransportChannel.java:44)
	at org.elasticsearch.server@9.2.0/org.elasticsearch.action.support.ChannelActionListener.onFailure(ChannelActionListener.java:45)
	at org.elasticsearch.server@9.2.0/org.elasticsearch.search.SearchService.lambda$wrapListenerForErrorHandling$4(SearchService.java:627)
	at org.elasticsearch.server@9.2.0/org.elasticsearch.action.ActionListenerImplementations$DelegatingResponseActionListener.acceptException(ActionListenerImplementations.java:202)
	at org.elasticsearch.server@9.2.0/org.elasticsearch.action.ActionListenerImplementations.safeAcceptException(ActionListenerImplementations.java:78)
	at org.elasticsearch.server@9.2.0/org.elasticsearch.action.ActionListenerImplementations$DelegatingResponseActionListener.onFailure(ActionListenerImplementations.java:207)
	at org.elasticsearch.server@9.2.0/org.elasticsearch.action.ActionRunnable.onFailure(ActionRunnable.java:152)
	at org.elasticsearch.server@9.2.0/org.elasticsearch.common.util.concurrent.AbstractRunnable.run(AbstractRunnable.java:29)
	at org.elasticsearch.server@9.2.0/org.elasticsearch.common.util.concurrent.TimedRunnable.doRun(TimedRunnable.java:35)
	at org.elasticsearch.server@9.2.0/org.elasticsearch.common.util.concurrent.ThreadContext$ContextPreservingAbstractRunnable.doRun(ThreadContext.java:1044)
	at org.elasticsearch.server@9.2.0/org.elasticsearch.common.util.concurrent.AbstractRunnable.run(AbstractRunnable.java:27)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1095)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:619)
	at java.base/java.lang.Thread.run(Thread.java:1447)
Caused by: org.elasticsearch.ElasticsearchException$1: Cannot invoke "java.util.List.iterator()" because "values" is null
	at org.elasticsearch.server@9.2.0/org.elasticsearch.ElasticsearchException.guessRootCauses(ElasticsearchException.java:798)
	at org.elasticsearch.server@9.2.0/org.elasticsearch.action.search.AbstractSearchAsyncAction.executeNextPhase(AbstractSearchAsyncAction.java:324)
	... 27 more
Caused by: java.lang.NullPointerException: Cannot invoke "java.util.List.iterator()" because "values" is null

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