MBCS_Tests_datetime related formatting test failures on IBM Cloud - RHEL only

[karianna]

Test_openjdk16_hs_special.functional_x86-64_linux
MBCS_Tests_datetime_0 => deep history 4/5 passed | possible issues - OK to Release test only fails on test-ibmcloud-rhel6-x64-1 - test or host needs updating - expected:<2021-04-21T17:48:12Z> but was:<2021-04-21T17:48:12.001Z>

MBCS_Tests_datetime_formatter_0 => deep history 4/5 passed | possible issues - OK to Release test only fails on test-ibmcloud-rhel6-x64-1 - test or host needs updating - expected:<2021-04-21T17:48:12Z> but was:<2021-04-21T17:48:12.001Z>

[smlambert]

This should be moved to the infrastructure repo, as that is where the fix will be needed.

[sxa]

Hmmm it would be good to be 100% certain that this doesn't occur on RHEL7/RHEL8 so we'd need to run some Grinders on that. We should also bear in mind that RHEL6 is now out of support for most people, so a valid option may be to exclude it on that system if possible (or remove the machine, but since we build against that version it would seem not ideal to not test on it)

[sxa]

If we get the info on being able to recreate this, then it can probably be verified in a CentOS6 docker container and see if any other workaround is possible, therefore adding this as a good first issue

[Haroon-Khel]

Rerunning with jdk17 5 iterations
https://ci.adoptium.net/job/Grinder/8475/console

[Haroon-Khel]

Passes 5/5 times. I know the issue was created for jdk16 but it is fixed with jdk17