RFR: 6910: Missing manifest prevents agent jar from running

[Marcus Hirt]

On Wed, 7 Oct 2020 18:35:23 GMT, Gunnar Morling <github.com+28612+gunnarmorling at openjdk.org> wrote:

>> Rerunning the tests. We see all these maven timeouts for some reason. We should look into this.
>
> Not exactly sure about the timeout issue, but perhaps it's a good idea to keep the local Maven repo between runs?
> 
> This will reduce likelyhood for this issue to occur as not everything is downloaded from scratch all the time and by
> that also increased build speed quite a bit. We e.g. do this
> [here](https://github.com/moditect/layrry/blob/master/.github/workflows/maven.yml#L39-L44) for Layrry; I could push a
> commit for this to this PR if you want?

That is a good idea - but let's do it as a separate commit. I'll open up a new ticket for it.

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PR: https://git.openjdk.java.net/jmc/pull/122