code: @NullSafe
    @SuppressWarnings("all")
    public static boolean areAllNull(Object... values) {
  
      for (Object value : nullSafeArray(values)) {
        if (value != null) {
          return false;
        }
      }
  
      return true;
    }
docs: Null-safe method to determine if all the values in the array are null.
  
  @param values an array of values being evaluated for null.
  @return true if and only if the array is null, empty or all elements in the array are null.
  @see #areAnyNull(Object...)