starter-toolkit fails when generating a connector from openapi description

Using the starter-toolkit to generate a connector from an openapi description:

• it fails without error when the description is not conform. For instance, if the property openapi: 3.0.0 is missing.
• with a large description the generated APIType in APIDataSet class is missing endpoints and does not compile:

      public enum APIType {
  
          protected void validateUrl(final APIDataSet config) {
              if (config.getConnection() == null || config.getConnection().getBaseUrl() == null) {
                  throw new IllegalArgumentException("No base url set");
              }
          }
  
          public abstract Response<JsonObject> call(APIDataSet config, APIClient client);
      }