ToShortNullableImpl implements NullableExpression<T, ToShort<T>>, ToShortNullable<T> { @Override public Predicate<T> isNullPredicate() { return isNull; } ToShortNullableImpl(ToShort<T> original, Predicate<T> isNull); @Override ToShort<T> inner(); @Override Predicate<T> isNullPredicate(); @Override Short apply(T t); @Override short applyAsShort(T t); @Override ToShort<T> orThrow(); @Override ToShort<T> orElseGet(ToShort<T> getter); @Override ToShort<T> orElse(Short value); @Override ToDoubleNullable<T> mapToDoubleIfPresent(ShortToDoubleFunction mapper); @Override ToShortNullable<T> mapIfPresent(ShortUnaryOperator mapper); @Override long hash(T object); @Override int compare(T first, T second); @Override boolean isNull(T object); @Override boolean isNotNull(T object); @Override boolean equals(Object o); @Override int hashCode();  }
@Test void isNullPredicate() { assertNotNull(instance.isNullPredicate()); }