@Test
void hex2obj() throws Exception {

  String intHex = ObjHexStringConverter.object2hex(i);
  Object objInt = ObjHexStringConverter.hex2obj(intHex);
  Assertions.assertEquals(i, (Integer) objInt);
  String objHex = ObjHexStringConverter.object2hex(termId);
  Object objTermId = ObjHexStringConverter.hex2obj(objHex);
  Assertions.assertEquals(termId, objTermId);
}