RFR: Allow a HostedRepositoryPool to refresh the seed from upstream [v2]

[Erik Helin]

On Mon, 12 Oct 2020 13:09:28 GMT, Robin Westberg <rwestberg at openjdk.org> wrote:

>> Add support for periodically refreshing the seed repository used with the HostedRepositoryPool remote repository cache.
>> Also allow the refresh to fail (and instead just use the latest cache) which can be used for operations that can
>> tolerate a delayed update (for example, determining the project name from the jcheck configuration file which rarely
>> changes).
>
> Robin Westberg has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Fix failing tests

Looks good!

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Marked as reviewed by ehelin (Reviewer).

PR: https://git.openjdk.java.net/skara/pull/874