[CI] QueryStringFunctionTests class failing

Build Scans:

Reproduction Line:

./gradlew ":x-pack:plugin:esql:test" --tests "org.elasticsearch.xpack.esql.expression.function.fulltext.QueryStringFunctionTests.testSerializationOfSimple {TestCase=type error for <geo_point>}" -Dtests.seed=3DE5C2CCE1C9976F -Dbuild.snapshot=false -Dtests.jvm.argline="-Dbuild.snapshot=false" -Dlicense.key=x-pack/license-tools/src/test/resources/public.key -Dtests.locale=sw-TZ -Dtests.timezone=Pacific/Funafuti -Druntime.java=22

Applicable branches: main

Reproduces locally?: N/A

Failure History: See dashboard&_a=(controlGroupInput:(chainingSystem:HIERARCHICAL,controlStyle:twoLine,ignoreParentSettings:(ignoreFilters:!f,ignoreQuery:!f,ignoreTimerange:!f,ignoreValidations:!t),panels:('0c0c9cb8-ccd2-45c6-9b13-96bac4abc542':(explicitInput:(dataViewId:fbbdc689-be23-4b3d-8057-aa402e9ed0c5,enhancements:(),fieldName:task.keyword,grow:!t,id:'0c0c9cb8-ccd2-45c6-9b13-96bac4abc542',searchTechnique:wildcard,selectedOptions:!(),singleSelect:!t,title:'Gradle%20Task',width:medium),grow:!t,order:0,type:optionsListControl,width:small),'144933da-5c1b-4257-a969-7f43455a7901':(explicitInput:(dataViewId:fbbdc689-be23-4b3d-8057-aa402e9ed0c5,enhancements:(),fieldName:name.keyword,grow:!t,id:'144933da-5c1b-4257-a969-7f43455a7901',searchTechnique:wildcard,selectedOptions:!('org.elasticsearch.xpack.esql.expression.function.fulltext.QueryStringFunctionTests'),title:Test,width:medium),grow:!t,order:2,type:optionsListControl,width:medium),'4e6ad9d6-6fdc-4fcc-bf1a-aa6ca79e0850':(explicitInput:(dataViewId:fbbdc689-be23-4b3d-8057-aa402e9ed0c5,enhancements:(),fieldName:className.keyword,grow:!t,id:'4e6ad9d6-6fdc-4fcc-bf1a-aa6ca79e0850',searchTechnique:wildcard,selectedOptions:!('org.elasticsearch.xpack.esql.expression.function.fulltext.QueryStringFunctionTests'),title:Suite,width:medium),grow:!t,order:1,type:optionsListControl,width:medium)))))

Failure Message:

java.lang.AssertionError: Unknown NamedWriteable [org.elasticsearch.xpack.esql.core.expression.Expression][QStr]

Issue Reasons:

[main] 2 consecutive failures in step release-tests
[main] 2 failures in class org.elasticsearch.xpack.esql.expression.function.fulltext.QueryStringFunctionTests (0.8% fail rate in 238 executions)
[main] 2 failures in step release-tests (100.0% fail rate in 2 executions)
[main] 2 failures in pipeline elasticsearch-periodic (50.0% fail rate in 4 executions)

Note: This issue was created using new test triage automation. Please report issues or feedback to es-delivery.

elastic / elasticsearch

[CI] QueryStringFunctionTests class failing #113496