code: private boolean isJoda(Class<?> clazz) {
          for (Constructor<?> each : clazz.getConstructors()) {
              Class<?>[] parameterTypes = each.getParameterTypes();
              if (parameterTypes.length > 0) {
                  if (parameterTypes[0].getName().startsWith("org.joda.time.")) {
                      return true;
                  }
              }
          }
          return false;
      }
docs: Check if joda date time library is used, without introducing runtime
  dependency.