code: private static boolean containsNullElements(@Nonnull final Object[] array) {
  		boolean containsNull = false;
  		for (final Object o : array) {
  			if (o == null) {
  				containsNull = true;
  				break;
  			}
  		}
  		return containsNull;
  	}
docs: Checks if the given array contains {@code null}.
  
  @param array
  reference to an array
  @return {@code true} if the array contains {@code null}, otherwise {@code false}