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OBJ01-EX1: "If a class is package-private or is a private nested class, there is nothing inherently wrong with exposing its data fields ���������€š�š�š�š���������‚�š�š�š��������‚�š�š������‚�š����‚��“ ����������‚�š�š�š�š����������€š�š�š�š���������€š�š�š�������€š�š�����€š���€œ assuming they do an adequate job of describing the abstraction provided by the class. This approach generates less visual clutter than the accessor-method approach, both in the class definition and in the client code that uses it" [Bloch 2008]. This exception applies to both mutable and immutable fields.
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