code: private static boolean isUTF8Value(Class<?> clazz)
      {
          return (clazz.isAssignableFrom(BigDecimal.class))
                  || (clazz.isAssignableFrom(BigInteger.class) || (clazz.isAssignableFrom(String.class))
                          || (clazz.isAssignableFrom(char.class)) || (clazz.isAssignableFrom(Character.class)));
      }
docs: Checks if is UT f8 value.
  
  @param clazz
  the clazz
  @return true, if is UT f8 value