[CI] KqlParserBooleanQueryTests testParseAndQuery failing

[elasticsearchmachine]

Build Scans:

• elasticsearch-intake #28174 / part3
• elasticsearch-periodic #10525 / openjdk23_checkpart3_java-matrix
• elasticsearch-periodic #10507 / openjdk21_checkpart3_java-fips-matrix
• elasticsearch-periodic #10495 / encryption-at-rest
• elasticsearch-periodic-platform-support #10485 / debian-12_platform-support-unix
• elasticsearch-periodic-platform-support #10479 / rocky-9_platform-support-unix
• elasticsearch-periodic-platform-support #10479 / windows-2025_checkpart3_platform-support-windows
• elasticsearch-periodic #10476 / openjdk21_checkpart3_java-fips-matrix
• elasticsearch-periodic-platform-support #10467 / ubuntu-2404-aarch64_checkpart3_platform-support-arm
• elasticsearch-periodic #10470 / openjdk21_checkpart3_java-matrix

Reproduction Line:

./gradlew ":x-pack:plugin:kql:test" --tests "org.elasticsearch.xpack.kql.parser.KqlParserBooleanQueryTests.testParseAndQuery" -Dtests.seed=9D65876AC0826FDE -Dtests.locale=uk-UA -Dtests.timezone=Europe/Luxembourg -Druntime.java=24

Applicable branches:
9.0

Reproduces locally?:
N/A

Failure History:
See dashboard

Failure Message:

java.lang.AssertionError: 
Expected: an instance of org.elasticsearch.index.query.BoolQueryBuilder
     but: <{
  "match" : {
    "mapped_string" : {
      "query" : "NOT anD NOT"
    }
  }
}> is a org.elasticsearch.index.query.MatchQueryBuilder

Issue Reasons:

• [9.0] 24 failures in test testParseAndQuery (4.6% fail rate in 522 executions)
• [9.0] 3 failures in step release-tests (15.0% fail rate in 20 executions)
• [9.0] 2 failures in step sles-15_platform-support-unix (10.0% fail rate in 20 executions)
• [9.0] 2 failures in step debian-12_platform-support-unix (10.5% fail rate in 19 executions)
• [9.0] 2 failures in step rocky-9_platform-support-unix (10.0% fail rate in 20 executions)
• [9.0] 2 failures in step openjdk21_checkpart3_java-fips-matrix (10.5% fail rate in 19 executions)
• [9.0] 2 failures in step openjdk23_checkpart3_java-matrix (10.5% fail rate in 19 executions)
• [9.0] 9 failures in pipeline elasticsearch-periodic (45.0% fail rate in 20 executions)
• [9.0] 8 failures in pipeline elasticsearch-periodic-platform-support (40.0% fail rate in 20 executions)

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

[elasticsearchmachine]

This has been muted on branch 9.1

Mute Reasons:

• [9.1] 2 failures in test testParseAndQuery (2.2% fail rate in 91 executions)

Build Scans:

• elasticsearch-periodic #10343 / concurrent-search-tests
• elasticsearch-intake #27753 / part3

[elasticsearchmachine]

Pinging @elastic/es-search (Team:Search)

[elasticsearchmachine]

This has been muted on branch main

Mute Reasons:

• [main] 12 failures in test testParseAndQuery (5.5% fail rate in 217 executions)
• [main] 6 failures in step part-3 (10.3% fail rate in 58 executions)
• [main] 2 failures in pipeline elasticsearch-periodic-platform-support (40.0% fail rate in 5 executions)
• [main] 4 failures in pipeline elasticsearch-pull-request (7.4% fail rate in 54 executions)

Build Scans:

• elasticsearch-periodic #10368 / openjdk23_checkpart3_java-matrix
• elasticsearch-periodic-platform-support #10349 / debian-12_platform-support-unix
• elasticsearch-periodic-platform-support #10349 / windows-2025_checkpart3_platform-support-windows
• elasticsearch-periodic-platform-support #10343 / rhel-8_platform-support-unix
• elasticsearch-periodic-platform-support #10343 / oraclelinux-9_platform-support-unix
• elasticsearch-gradle-cache-validation #135 / checkpart3_configuration_caching_validation
• elasticsearch-pull-request #89068 / part-3
• elasticsearch-pull-request #89068 / part-3
• elasticsearch-pull-request #89012 / part-3
• elasticsearch-pull-request #88988 / part-3

[thecoop]

Caused by #133737