Failing ES Promotion: management scripted fields creating and using Painless date scripted fields should see scripted field value in Discover

[mistic]

This failure is preventing the promotion of the current Elasticsearch nightly snapshot.

For more information on the Elasticsearch snapshot promotion process including how to reproduce using the unverified nightly ES build: https://www.elastic.co/guide/en/kibana/master/development-es-snapshots.html

CI failure logs: https://buildkite.com/elastic/kibana-elasticsearch-snapshot-verify/builds/202#94903184-1b67-445e-acfe-453d6537b2ce

│1)    management
--
  | │
  | │         scripted fields
  | │           creating and using Painless date scripted fields
  | │             should see scripted field value in Discover:
  | │
  | │      Error: Timeout of 360000ms exceeded. For async tests and hooks, ensure "done()" is called; if returning a Promise, ensure it resolves. (/var/lib/buildkite-agent/builds/kb-cigroup-4d-c570666d31b585e4/elastic/kibana-elasticsearch-snapshot-verify/kibana/test/functional/apps/management/_scripted_fields.js)
  | │       at listOnTimeout (internal/timers.js:557:17)
  | │       at processTimers (internal/timers.js:500:7)

[elasticmachine]

Pinging @elastic/kibana-data-discovery (Team:DataDiscovery)

[mistic]

Skipped.

master/8.0: fefc34e

[majagrubic]

Managed to reproduce the test failure

[majagrubic]

Error message:

[majagrubic]

According to the docs, getMillis indeed doesn't exist in ZonedDateTime java package:
https://docs.oracle.com/javase/8/docs/api/java/time/ZonedDateTime.html

According to Painless docs, this should be read from java.time.Clock package.

I would pass this on to Painless team for further investigation.

[majagrubic]

The fix is merged into master. Just to be clear - this does not need to be backported to 7.x?