Hi all,
here is a pull request that enables PMD checks over closeables:

https://github.com/geotools/geotools/pull/2270

For now it's limited to the PMD default checked types, Statement,
Resultset, Connection,
and it's a bit finicky in how the closing checks are performed, but once
configured the ratio between legit reports
and false positives has been very good (the commit changes around 2600
lines, literally a few hundred fixes,
and had to add 14 suppressions).

I've also added some notes in the docs about how the configuration works.

If this works for you, in the future I might try to add other closeables
(streams, feature iterators) and see
how bad it is ;-)

Cheers
Andrea


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