RFR: Log warning on wrapped UncheckedRestException

[Magnus Ihse Bursie]

On Thu, 24 Feb 2022 22:12:46 GMT, Erik Joelsson <erikj at openjdk.org> wrote:

> In SKARA-1063, I introduced UncheckedRestException in order to avoid logging for errors that are very likely transient, and that are tracked with metrics as well. In some cases, specifically when running Jcheck in a bot, we end up wrapping that exception in a RuntimeException, which in turn causes us to log an error instead of warning. 
> 
> This patch tries to fix this by also checking nested exceptions in when catching RuntimeException in the BotRunner.

Marked as reviewed by ihse (Reviewer).

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PR: https://git.openjdk.java.net/skara/pull/1292