@BeforeEach
    public void setUp() {
        output = new BodyContentHandler();
        xhtml = new XHTMLContentHandler(output, new Metadata());
    }
Return array of non-zerolength words. Splitting on whitespace will get us
empty words for emptylines.

@param string some mix of newlines and real words
@return array of real words.
tika-core/src/test/java/org/apache/tika/sax/XHTMLContentHandlerTest.java