abstract class, which will ensure that the Matcher API can grow to support new features and remain compatible with all Matcher implementations. For easy access to common Matcher implementations, use the static factory methods in CoreMatchers. N.B. Well designed matchers should be immutable. See Also: CoreMatchers, BaseMatcher Method Summary void _dont_implement_Matcher___instead_extend_BaseMatcher_() Deprecated. to make void describeMismatch(java.lang.Object item, Description mismatchDescription)...