assertTrue(result);
        // Verify that each index is recreated with its original name (not .rebuild.xxx)
        for (final String index : testClient.createdIndices) {
            assertFalse(index.contains(".rebuild."), "Index should not contain .rebuild.: " + index);
        }
        // Verify reindex targets are original names (not .rebuild.xxx)
        for (final String[] pair : testClient.reindexPairs) {

    /**
     * The flag to load bulk data during config index rebuild.
     */
    @Size(max = 10)
    public String loadBulkData;

    /**
     * The flag to rebuild fess_config indices.
     */
    @Size(max = 10)
    public String rebuildConfigIndex = Constants.ON;

    /**
     * The flag to rebuild fess_user indices.
     */
    @Size(max = 10)
    public String rebuildUserIndex;

                // 6. Recreate aliases on the rebuilt index
                createAlias(configIndex, indexName);

                // 7. Delete backup
                deleteIndex(backupIndex);

                logger.info("[Rebuild] Completed rebuild for {}", indexName);
            } catch (final Exception e) {
                logger.warn("[Rebuild] Failed to rebuild index: {}", indexName, e);

                    logger.warn("Failed to rebuild config indices");
                }
            } catch (final Exception e) {
                logger.warn("Failed to rebuild config indices", e);
            } finally {
                coordinator.completeOperation("reindex_config");
            }
        }, "rebuild-config-indices").start();

labels.reload_doc_index=Reload Document Index
labels.reload_doc_index_button=Reload
labels.rebuild_config_index=Rebuild Config Index
labels.rebuild_config_index_button=Rebuild
labels.load_bulk_data=Load Default Data
labels.rebuild_target_indices=Target Indices
labels.rebuild_config_index_confirmation=Are you sure you want to rebuild the selected configuration indices? This operation will run in the background.
labels.plugin_title=Plugin

errors.failed_to_upgrade_from=Failed to upgrade from {0}.
errors.failed_to_reindex=Failed to start re-indexing from {0} to {1}.
errors.failed_to_rebuild_config_index=Failed to rebuild config indices.
errors.no_target_index_selected=Please select at least one target index to rebuild.
errors.operation_already_running=The operation is already running on {0}.
errors.failed_to_read_request_file=Failed to read a request file: {0}

errors.failed_to_upgrade_from=Failed to upgrade from {0}.
errors.failed_to_reindex=Failed to start re-indexing from {0} to {1}.
errors.failed_to_rebuild_config_index=Failed to rebuild config indices.
errors.no_target_index_selected=Please select at least one target index to rebuild.
errors.operation_already_running=The operation is already running on {0}.
errors.failed_to_read_request_file=Failed to read a request file: {0}

labels.reload_doc_index=Reload Document Index
labels.reload_doc_index_button=Reload
labels.rebuild_config_index=Rebuild Config Index
labels.rebuild_config_index_button=Rebuild
labels.load_bulk_data=Load Default Data
labels.rebuild_target_indices=Target Indices
labels.rebuild_config_index_confirmation=Are you sure you want to rebuild the selected configuration indices? This operation will run in the background.
labels.plugin_title=Plugin

    /** The key of the message: Failed to rebuild config indices. */
    public static final String ERRORS_failed_to_rebuild_config_index = "{errors.failed_to_rebuild_config_index}";

    /** The key of the message: Please select at least one target index to rebuild. */
    public static final String ERRORS_no_target_index_selected = "{errors.no_target_index_selected}";

    public static final String LABELS_reload_doc_index_button = "{labels.reload_doc_index_button}";

    /** The key of the message: Rebuild Config Index */
    public static final String LABELS_rebuild_config_index = "{labels.rebuild_config_index}";

    /** The key of the message: Rebuild */
    public static final String LABELS_rebuild_config_index_button = "{labels.rebuild_config_index_button}";