[CI] CsvTests test {csv-spec:string.RepeatNegative} failing

[elasticsearchmachine]

Build Scans:

• elasticsearch-intake #26837 / part3
• elasticsearch-intake #26831 / part3
• elasticsearch-periodic #9986 / openjdk21_checkpart3_java-matrix

Reproduction Line:

./gradlew ":x-pack:plugin:esql:test" --tests "org.elasticsearch.xpack.esql.CsvTests" -Dtests.method="test {csv-spec:string.RepeatNegative}" -Dtests.seed=949E5338396D2FD7 -Dtests.locale=bem-ZM -Dtests.timezone=America/Porto_Velho -Druntime.java=24

Applicable branches:
main

Reproduces locally?:
N/A

Failure History:
See dashboard

Failure Message:

java.lang.AssertionError: Expected a list containing
0: expected "Line 1:58: evaluation of [repeat(first_name, emp_no - 10002)] failed, treating result as null. Only first 20 failures recorded." but was <missing>
1: expected "Line 1:58: java.lang.IllegalArgumentException: Number parameter cannot be negative, found [-1]" but was <missing>

Issue Reasons:

• [main] 3 failures in test test {csv-spec:string.RepeatNegative} (1.4% fail rate in 222 executions)
• [main] 2 failures in step part3 (4.5% fail rate in 44 executions)
• [main] 2 failures in pipeline elasticsearch-intake (4.5% fail rate in 44 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 main

Mute Reasons:

• [main] 2 failures in test test {csv-spec:string.RepeatNegative} (0.9% fail rate in 223 executions)

Build Scans:

• elasticsearch-intake #26831 / part3
• elasticsearch-periodic #9986 / openjdk21_checkpart3_java-matrix

[elasticsearchmachine]

Pinging @elastic/es-analytical-engine (Team:Analytics)

[idegtiarenko]

Closed by #132843