docs: public static Object getStaticFieldVal(final Class<?> cls, final String fieldName, final boolean throwException)
              throws IllegalArgumentException {
          if (cls == null || fieldName == null) {
              if (throwException) {
                  throw new NullPointerException();
              } else {
                  return null;
              }
          }
          return getFieldVal(cls, null, fieldName, throwException);
      }