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How to use _dont_implement_Matcher___instead_extend_BaseMatcher_ method of org.hamcrest.Interface Matcher class

Best junit code snippet using org.hamcrest.Interface Matcher._dont_implement_Matcher___instead_extend_BaseMatcher_

Source:MatcherGenericTypeExtractorTest.java

...40    private class IntMatcherFromInterface implements Matcher<Integer> {41        public boolean matches(Object o) {42            return true;43        }44        public void _dont_implement_Matcher___instead_extend_BaseMatcher_() {}45        public void describeTo(Description description) {}46    }47    //Static Matcher interface implementation (instead of the BaseMatcher)48    private static class StaticIntMatcherFromInterface implements Matcher<Integer> {49        public boolean matches(Object o) {50            return true;51        }52        public void _dont_implement_Matcher___instead_extend_BaseMatcher_() {}53        public void describeTo(Description description) {}54    }55    //non-generic matcher implementing the interface56    private static class NonGenericMatcherFromInterface implements Matcher {57        public boolean matches(Object o) {58            return true;59        }60        public void _dont_implement_Matcher___instead_extend_BaseMatcher_() { }61        public void describeTo(Description description) {}62    }63    private static interface IMatcher extends Matcher<Integer> {}64    //non-generic matcher implementing the interface65    private static class SubclassGenericMatcherFromInterface implements Serializable, Cloneable, IMatcher {66        public boolean matches(Object o) {67            return true;68        }69        public void _dont_implement_Matcher___instead_extend_BaseMatcher_() { }70        public void describeTo(Description description) {}71    }72    //I refuse to comment on the sanity of this case73    private static class InsaneEdgeCase extends SubclassGenericMatcherFromInterface {}74    @Test75    public void findsGenericType() {76        assertEquals(Integer.class, genericTypeOfMatcher(IntMatcher.class));77        assertEquals(Integer.class, genericTypeOfMatcher(StaticIntMatcher.class));78        assertEquals(Integer.class, genericTypeOfMatcher(IntMatcherFromInterface.class));79        assertEquals(Integer.class, genericTypeOfMatcher(StaticIntMatcherSubclass.class));80        assertEquals(Integer.class, genericTypeOfMatcher(IntMatcherFromInterface.class));81        assertEquals(Integer.class, genericTypeOfMatcher(StaticIntMatcherFromInterface.class));82        assertEquals(Integer.class, genericTypeOfMatcher(SubclassGenericMatcherFromInterface.class));83        assertEquals(Integer.class, genericTypeOfMatcher(InsaneEdgeCase.class));84        assertEquals(Integer.class, genericTypeOfMatcher(new BaseMatcher<Integer>() {85            public void describeTo(Description description) {86            }87            public boolean matches(Object o) {88                return false;89            }90        }.getClass()));91        assertEquals(Integer.class, genericTypeOfMatcher(new Matcher<Integer>() {92            public void describeTo(Description description) {93            }94            public boolean matches(Object o) {95                return false;96            }97            public void _dont_implement_Matcher___instead_extend_BaseMatcher_() {98            }99        }.getClass()));100        assertEquals(Object.class, genericTypeOfMatcher(Object.class));101        assertEquals(Object.class, genericTypeOfMatcher(String.class));102        assertEquals(Object.class, genericTypeOfMatcher(new HashMap<String, String>().getClass()));103        assertEquals(Object.class, genericTypeOfMatcher(new HashMap<String, String>() {104        }.getClass()));105        assertEquals(Object.class, genericTypeOfMatcher(NonGenericMatcher.class));106        assertEquals(Object.class, genericTypeOfMatcher(NonGenericMatcherFromInterface.class));107    }108}...

Source:BaseMatcher.java

...5 * @see Matcher6 */7public abstract class BaseMatcher<T> implements Matcher<T> {8    /**9     * @see Matcher#_dont_implement_Matcher___instead_extend_BaseMatcher_()10     */11    @Override12    @Deprecated13    public final void _dont_implement_Matcher___instead_extend_BaseMatcher_() {14        // See Matcher interface for an explanation of this method.15    }16    @Override17    public void describeMismatch(Object item, Description description) {18        description.appendText("was ").appendValue(item);19    }20    @Override21    public String toString() {22        return StringDescription.toString(this);23    }24}...

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