[CI] ImmediateLocalSupplierTests testEqualsAndHashcode failing

[elasticsearchmachine]

Build Scans:

• elasticsearch-periodic-platform-support #10966 / rocky-9_platform-support-unix
• elasticsearch-pull-request #96588 / part-3

Reproduction Line:

./gradlew ":x-pack:plugin:esql:test" --tests "org.elasticsearch.xpack.esql.plan.logical.local.ImmediateLocalSupplierTests.testEqualsAndHashcode" -Dtests.seed=A4AA443A36B3BCFB -Dtests.locale=ar-KW -Dtests.timezone=America/New_York -Druntime.java=25

Applicable branches:
main

Reproduces locally?:
N/A

Failure History:
See dashboard

Failure Message:

java.lang.AssertionError: ImmediateLocalSupplier mutation should not be equal to original
Expected: not <Page{blocks=[IntVectorBlock[vector=IntArrayVector[positions=0, values=[]]], IntVectorBlock[vector=IntArrayVector[positions=0, values=[]]], IntVectorBlock[vector=IntArrayVector[positions=0, values=[]]], IntVectorBlock[vector=IntArrayVector[positions=0, values=[]]], IntVectorBlock[vector=IntArrayVector[positions=0, values=[]]], IntVectorBlock[vector=IntArrayVector[positions=0, values=[]]], IntVectorBlock[vector=IntArrayVector[positions=0, values=[]]]]}>
     but: was <Page{blocks=[IntVectorBlock[vector=IntArrayVector[positions=0, values=[]]], IntVectorBlock[vector=IntArrayVector[positions=0, values=[]]], IntVectorBlock[vector=IntArrayVector[positions=0, values=[]]], IntVectorBlock[vector=IntArrayVector[positions=0, values=[]]], IntVectorBlock[vector=IntArrayVector[positions=0, values=[]]], IntVectorBlock[vector=IntArrayVector[positions=0, values=[]]], IntVectorBlock[vector=IntArrayVec
[truncated]

Issue Reasons:

• [main] 2 failures in test testEqualsAndHashcode (0.8% fail rate in 251 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 testEqualsAndHashcode (0.8% fail rate in 251 executions)

Build Scans:

• elasticsearch-periodic-platform-support #10966 / rocky-9_platform-support-unix
• elasticsearch-pull-request #96588 / part-3

[elasticsearchmachine]

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

[luigidellaquila]

This was introduced by #133405

Before this change, these tests only checked that two block arrays were not equal after a mutation, now they check that two pages are not the same.
The problem is that Page.equals() has some specific logic, that considers two pages equal as long as they have zero positions, even if they have a different number of blocks

[astefan]

I guess it makes sense for this CI failure to be assigned to you @luigidellaquila, based on the original PR that introduced a change affecting the failing test. If you think otherwise, please let me know. Thanks 🙏