Code cleanup

[david-waltermire]

Committer Notes

Code cleanup and addressing PMD and Spotbug warnings.

All Submissions:

• [x] Have you followed the guidelines in our Contributing document?
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Changes to Core Features:

• [ ] Have you added an explanation of what your changes do and why you'd like us to include them?
• [x] Have you written new tests for your core changes, as applicable?
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