SignificantTermsAggregatorTests#testThreeLayerStringViaGlobalOrds test failure

[DaveCTurner]

Build scan:

https://gradle-enterprise.elastic.co/s/aw3a7yy5msfwi/console-log?task=:server:test

Repro line:

REPRODUCE WITH: ./gradlew ':server:test' --tests "org.elasticsearch.search.aggregations.bucket.terms.SignificantTermsAggregatorTests.testThreeLayerStringViaGlobalOrds" -Dtests.seed=801AEA6F7F916B4D -Dtests.security.manager=true -Dtests.locale=es-AR -Dtests.timezone=Pacific/Gambier -Druntime.java=11

Reproduces locally?:

No

Applicable branches:

Only see on master.

Failure history:

Just this once so far.

Failure excerpt:

org.elasticsearch.search.aggregations.bucket.terms.SignificantTermsAggregatorTests > testThreeLayerStringViaGlobalOrds FAILED
    java.lang.ArrayIndexOutOfBoundsException: Index 1 out of bounds for length 1
        at __randomizedtesting.SeedInfo.seed([801AEA6F7F916B4D:8871AB284C5E9350]:0)
        at org.elasticsearch.common.util.BigArrays$LongArrayWrapper.get(BigArrays.java:210)
        at org.elasticsearch.common.util.MockBigArrays$LongArrayWrapper.get(MockBigArrays.java:410)
        at org.elasticsearch.search.aggregations.bucket.terms.GlobalOrdinalsStringTermsAggregator$SignificantTermsResults.bucketUpdater(GlobalOrdinalsStringTermsAggregator.java:802)
        at org.elasticsearch.search.aggregations.bucket.terms.GlobalOrdinalsStringTermsAggregator$ResultStrategy.buildAggregations(GlobalOrdinalsStringTermsAggregator.java:561)
        at org.elasticsearch.search.aggregations.bucket.terms.GlobalOrdinalsStringTermsAggregator.buildAggregations(GlobalOrdinalsStringTermsAggregator.java:193)
        at org.elasticsearch.search.aggregations.bucket.BestBucketsDeferringCollector$2.buildAggregations(BestBucketsDeferringCollector.java:227)
        at org.elasticsearch.search.aggregations.bucket.BucketsAggregator.buildSubAggsForBuckets(BucketsAggregator.java:192)
        at org.elasticsearch.search.aggregations.bucket.BucketsAggregator.buildSubAggsForAllBuckets(BucketsAggregator.java:255)
        at org.elasticsearch.search.aggregations.bucket.terms.GlobalOrdinalsStringTermsAggregator.access$600(GlobalOrdinalsStringTermsAggregator.java:65)
        at org.elasticsearch.search.aggregations.bucket.terms.GlobalOrdinalsStringTermsAggregator$SignificantTermsResults.buildSubAggs(GlobalOrdinalsStringTermsAggregator.java:831)
        at org.elasticsearch.search.aggregations.bucket.terms.GlobalOrdinalsStringTermsAggregator$SignificantTermsResults.buildSubAggs(GlobalOrdinalsStringTermsAggregator.java:747)
        at org.elasticsearch.search.aggregations.bucket.terms.GlobalOrdinalsStringTermsAggregator$ResultStrategy.buildAggregations(GlobalOrdinalsStringTermsAggregator.java:586)
        at org.elasticsearch.search.aggregations.bucket.terms.GlobalOrdinalsStringTermsAggregator.buildAggregations(GlobalOrdinalsStringTermsAggregator.java:193)
        at org.elasticsearch.search.aggregations.Aggregator.buildTopLevel(Aggregator.java:160)
        at org.elasticsearch.search.aggregations.AggregatorTestCase.searchAndReduce(AggregatorTestCase.java:457)
        at org.elasticsearch.search.aggregations.AggregatorTestCase.searchAndReduce(AggregatorTestCase.java:402)
        at org.elasticsearch.search.aggregations.bucket.terms.SignificantTermsAggregatorTests.threeLayerStringTestCase(SignificantTermsAggregatorTests.java:508)
        at org.elasticsearch.search.aggregations.bucket.terms.SignificantTermsAggregatorTests.testThreeLayerStringViaGlobalOrds(SignificantTermsAggregatorTests.java:474)

[elasticmachine]

Pinging @elastic/es-analytics-geo (:Analytics/Aggregations)