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Assigning to a static variable from a constructor is highly indicative of a bug,
or error-prone design.
Common reasons are:
1. The field simply should be an instance field, and there's a bug.
2. An attempt is being made to lazily initialize a static field. In this case,
first consider whether lazy initialization is necessary: it often isn't. If
it is, doing it from a constructor is very hairy: the static field could be
accessed from a static method before the class is even initialized. Consider
using a memoized `Supplier`.
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