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refactor: equals avoids null

Closed Administrator requested to merge github/fork/zieka/refactor/equals-avoids-null into master

Created by: zieka

@bbdouglas @sreeshas @jfiala @lukoyanov @cbornet @jeff9finger @karismann @Zomzog @lwlee2608 @nmuesch

It is preferable to place string literals on the left-hand side of an equals() or equalsIgnoreCase() method call. This prevents null pointer exceptions from being raised, as a string literal can never be null by definition.

Happy Hacktoberfest!

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Co-authored-by: Moderne team@moderne.io