code: public static ModuleIdentifier create(final String string) {
          String[] split = string.split(":");
          String version = null;
          if (split.length > 1) {
              version = split[1];
          }
          return new ModuleIdentifier(split[0], version, false, false);
      }
docs: Creates a ModuleIdentifier from name:version.
  @param string The name:version string
  @return ModuleIdentifier The module identifier