@GET
  @Path("config")
  public Response getAllPackageConfigs() {
    try {
      Map<String, Map<String, Object>> config = helium.getAllPackageConfig();
      return new JsonResponse<>(Response.Status.OK, config).build();
    } catch (RuntimeException e) {
      logger.error(e.getMessage(), e);
      return new JsonResponse<>(Response.Status.INTERNAL_SERVER_ERROR, e.getMessage()).build();
    }
  }
@Test
  void testGetAllPackageConfigs() throws IOException {
    CloseableHttpResponse get = httpGet("/helium/config/");
    assertThat(get, isAllowed());
    Map<String, Object> resp = gson.fromJson(EntityUtils.toString(get.getEntity(), StandardCharsets.UTF_8),
            new TypeToken<Map<String, Object>>() { }.getType());
    Map body = (Map) resp.get("body");
    // ToDo: Apply config with POST command and check update
    assertEquals(0, body.size());
    get.close();
  }