code: @Override
      public List<URL> getJarFileUrls() {
          List<URL> urls = new ArrayList<>();
          for (String url : persistenceUnitXml.getJarFile()) {
              try {
                  urls.add(new URL(url));
              } catch (MalformedURLException e) {
                  LOGGER.error("Cannot create an URL object from {}", url, e);
              }
          }
          return urls;
      }
docs: /*
  @see javax.persistence.spi.PersistenceUnitInfo#getJarFileUrls()