Specification of java.text.BreakIterator class doesn't describe most methods behaviour before method setText(String) or setText(CharacterIterator) is called.

example:
int value = BreakIterator.getWordInstance().next();

What is result of such call? (exception, 0 or something else)

You may do either:
- specify on the class level, that all static methods returning BreakIterator creates an instance initialized by empty string
or
- in every abstract method specify its reaction on "text isn't set" situation
or something else.