Adding Finalizer timing to FDBTransaction.java

[scottfines]

This adds a simple latency time measurement to calls made to FDBTransaction.java#finalize() so that the time spent in finalization can be measured.

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• Commit ID: ea666ef580ca07ec056f08bd5f45199ec85fed4f
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AWS CodeBuild CI Report for Linux CentOS 7

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[sfc-gh-abeamon]

The finalizers are deprecated, and I'm hoping that we can remove them before too long. I don't have any concerns with adding this change, but just in case it changes anything for you I wanted to make you aware of that context.

[scottfines]

I don't think that's a particular problem from my perspective--if the finalizers are never called, then I don't have to worry about the latency within their call stack :)

[jzhou77]

There is a PR removing the deprecated APIs, so this should no longer be needed.