Use of Optional.ofNullable with null or not-null argument

Reports uses of Optional.ofNullable() where always null or always not-null argument is passed. There's no point in using Optional.ofNullable() in this case: either Optional.empty() or Optional.of() should be used to explicitly state the intent of creating an always-empty or always non-empty optional respectively. It's also possible that there's a mistake in Optional.ofNullable() argument, so it should be examined.

Example: