add ProblemList_openjdk21.txt for Microsoft

[gdams]

We noticed this was missing so I've copied the Adoptium problem list. Not sure if I need to copy this to other vendor directories too?

[sophia-guo]

Yes, the problem list is needed per jdk version for all vendors. However, if there are no specific tests need to be excluded per vendor an empty problem list file as a placeholder should be enough.

[gdams]

@sophia-guo updated PTAL

[smlambert]

@sophia-guo - I was not aware that the vendor problem list file was actually needed, I thought it was used if it is there and not used if not present.

[sophia-guo]

I was not aware that the vendor problem list file was actually needed, I thought it was used if it is there and not used if not present.

We can definitely enhance this.

[gdams]

@sophia-guo - I was not aware that the vendor problem list file was actually needed, I thought it was used if it is there and not used if not present.

Yeah it currently produces an error if it doesn't exist

[sophia-guo]

Issue address this. #4790