code: private String getHalDocsDomainPath(ZipFile jarFile) throws IOException {
      ZipEntry manifestEntry = jarFile.getEntry("META-INF/MANIFEST.MF");
      if (manifestEntry != null) {
        try (InputStream is = jarFile.getInputStream(manifestEntry)) {
          Manifest manifest = new Manifest(is);
          return manifest.getMainAttributes().getValue(JsonSchemaBundleTracker.HEADER_DOMAIN_PATH);
        }
      }
      return null;
    }
docs: Gets bundle header/mainfest entry Caravan-HalDocs-DomainPath from given JAR file.
  @param jarFile JAR file
  @return Header value or null
  @throws IOException