[CI] LdapSessionFactoryTests testBindWithReadTimeout failing

[elasticsearchmachine]

Build Scans:

• elasticsearch-periodic #9179 / openjdk21_checkpart4_java-fips-matrix
• elasticsearch-periodic #9143 / openjdk21_checkpart4_java-fips-matrix

Reproduction Line:

./gradlew ":x-pack:plugin:security:test" --tests "org.elasticsearch.xpack.security.authc.ldap.LdapSessionFactoryTests.testBindWithReadTimeout" -Dtests.seed=8178F398A941FE77 -Dtests.locale=yue-Hant-HK -Dtests.timezone=Asia/Aqtau -Druntime.java=21 -Dtests.fips.enabled=true

Applicable branches:
main

Reproduces locally?:
N/A

Failure History:
See dashboard

Failure Message:

java.lang.AssertionError: 
Expected: a string containing "A client-side timeout was encountered while waiting "
     but: was "The connection to server 127.0.0.1:36275 was closed while waiting for a response to a bind request SimpleBindRequest(dn='cn=Horatio Hornblower,ou=people,o=sevenSeas'):  An I/O error occurred while trying to read the response from the server:  SocketException(Socket closed), ldapSDKVersion=6.0.3, revision=405ee52a554f9867e81d4598a5b2f97beabeb29a"

Issue Reasons:

• [main] 2 failures in test testBindWithReadTimeout (1.0% fail rate in 194 executions)
• [main] 2 failures in step openjdk21_checkpart4_java-fips-matrix (33.3% fail rate in 6 executions)
• [main] 2 failures in pipeline elasticsearch-periodic (33.3% fail rate in 6 executions)

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

[elasticsearchmachine]

Pinging @elastic/es-security (Team:Security)

[elasticsearchmachine]

Pinging @elastic/es-core-infra (Team:Core/Infra)

[n1v0lg]

#130616 just missing backports