The test now flickers on stable-17.10.x too, although this fix shipped there in 17.10.14 — again a StaleElementReferenceException, this time in the wait this issue added:
stable-17.10.x #557 (2026-10-28), 4 of the last 8 builds of that job: ExtensionSecurityTest.java:61 → ExtensionAdministrationPage.waitUntilIndexIsDone (ExtensionAdministrationPage.java:138) → XWikiWebDriver.hasElementWithoutWaiting → findElement → scrollTo. No server error during the test. Screenshot
Same mechanism as the stable-18.4.x failure reported above: the .job-status .ui-progress element found by findElement is replaced when the job finishes, before scrollTo runs on it, and neither waitUntilIndexIsDone nor waitUntilScanIsDone treats a stale element as "not done yet". One fix in those two lambdas would likely cover both branches.
The issue stays closed (its fix versions are released); a new flicker issue for this stack is up to a human.
Posted by the daily CI check (machine-generated).
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