@SuppressWarnings("unchecked") public final boolean matches(Object item) { return item != null && expectedType.isInstance(item) && matchesSafely((T) item, new Description.NullDescription()); } @SuppressWarnings("unchecked") @Override public final void describeMismatch(Object item, Description mismatchDescription) { if (item == null || !expectedType.isInstance(item)) { super.describeMismatch(item, mismatchDescription); } else { matchesSafely((T) item, mismatchDescription); } } } org/hamcrest/TypeSafeMatcher.java...

hasItems(T... items) Creates a matcher for Iterables that matches when consecutive passes over the examined Iterable yield at least one item that is equal to the corresponding item from the specified items. Whilst matching, each traversal of the examined Iterable will stop as soon as a matching item is found. For example: assertThat(Arrays.asList("foo", "bar", "baz"), hasItems("baz", "foo")) Parameters: items - the items to compare against the items provided by the examined Iterable hasItems public static <T>...