code: public static InstalledIdentity load(final File jbossHome, final ProductConfig productConfig, final File... repoRoots) throws IOException {
          final InstalledImage installedImage = installedImage(jbossHome);
          return load(installedImage, productConfig, Arrays.<File>asList(repoRoots), Collections.<File>emptyList());
      }
docs: Load the layers based on the default setup.
  
  @param jbossHome     the jboss home directory
  @param productConfig the product config
  @param repoRoots     the repository roots
  @return the available layers
  @throws IOException