RFR: 6878: Update Spotbugs latest version in jmc 8.0.0 source

[Marcus Hirt]

On Wed, 28 Oct 2020 23:16:48 GMT, Suchita Chaturvedi <schaturvedi at openjdk.org> wrote:

> Updating spotbugs version from 4.0.4 to 4.1.4 which is the latest available.
> 
> Please review the change.

Hi @Suchitainf - the upgrade makes the spot bugs tests fail. You need to either fix the newly found problems (if they are indeed problems), or exclude them in the spot bugs exclude file (with an explanation why it is no problem).

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PR: https://git.openjdk.java.net/jmc/pull/145