feedback when it fails. * <p/> * Matcher implementations should <b>NOT directly implement this interface</b>. * Instead, <b>extend</b> the {@link BaseMatcher} abstract class, * which will ensure that the Matcher API can grow to support * new features and remain compatible with all Matcher implementations. * <p/> * For easy access to common Matcher implementations, use the static factory * methods in {@link CoreMatchers}. * <p/> * N.B. Well designed matchers should be immutable. * * @see CoreMatchers * @see...