try {
            final IndicesExistsResponse response =
                    client.admin().indices().prepareExists(indexName).execute().actionGet(fessConfig.getIndexSearchTimeout());
            exists = response.isExists();
        } catch (final Exception e) {
            logger.debug("Failed to check index status: indexName={}", indexName, e);
        }
        return exists;
    }

    /**

        for (final String[] call : testClient.addMappingCalls) {
            assertNotNull(call);
        }
        // The loadBulkData=true path triggers getResourcePath + ResourceUtil.isExist checks.
        // In test environment resource files don't exist, so insertBulkData won't be called,
        // but the overall flow should still succeed.
        assertTrue(testClient.calledMethods.contains("addMapping"));