final CoordinatorHelper helper = new CoordinatorHelper();
        try {
            final Field field = CoordinatorHelper.class.getDeclaredField("instanceId");
            field.setAccessible(true);
            field.set(helper, testInstanceId);
        } catch (final Exception e) {
            throw new RuntimeException(e);
        }
        return helper;
    }

        try {
            java.lang.reflect.Method method =
                    QueryHelper.class.getDeclaredMethod("createFieldSortBuilder", String.class, org.opensearch.search.sort.SortOrder.class);
            method.setAccessible(true);

            org.opensearch.search.sort.SortBuilder<?> result = (org.opensearch.search.sort.SortBuilder<?>) method.invoke(queryHelper,
                    "timestamp", org.opensearch.search.sort.SortOrder.DESC);

  }

  @J2ktIncompatible
  @GwtIncompatible // reflection
  private static int bucketsOf(HashMap<?, ?> hashMap) throws Exception {
    Field tableField = HashMap.class.getDeclaredField("table");
    tableField.setAccessible(true);
    Object[] table = (Object[]) tableField.get(hashMap);
    // In JDK8, table is set lazily, so it may be null.
    return table == null ? 0 : table.length;
  }

    }

    private void setValueToObject(Object obj, String name, Object value) {
        Field field = ClassUtil.getDeclaredField(obj.getClass(), name);
        field.setAccessible(true);
        FieldUtil.set(field, obj, value);
    }

    @Test
    public void test_pruneNode() throws Exception {