import java.util.Comparator;
import java.util.Date;

// Checkers may issue type checking errors for this class, but they should not crash
@SuppressWarnings("")
public class AnonymousClasses {
    // test anonymous classes
    private void testAnonymous() {
        Foo x = new Foo() {};
        new Object() {
            public boolean equals(Object o) {
                return true;
            }
        }.equals(null);

        Date d = new Date() {};
    }

    private <T extends Comparator<T>> void testGenericAnonymous() {
        Gen<T> g = new Gen<T>() {};
        GenInter<T> gi = new GenInter<T>() {};
    }

    class Gen<F extends Object> {
        public Gen() {}
    }

    interface GenInter<E> {}

    interface Foo {}
}