return _instance;
    }

    // ===================================================================================
    //                                                                       Current DBDef
    //                                                                       =============
    @Override
    public String getProjectName() {
        return null;
    }

    @Override

        return _instance;
    }

    // ===================================================================================
    //                                                                       Current DBDef
    //                                                                       =============
    @Override
    public String getProjectName() {
        return null;
    }

    @Override

        insertionOrder.add(cell);
        table.put(row, column, cell);
      } else {
        oldCell.merge(value, merger);
      }
    }

    /*
     * While the current implementation returns `this`, that's not something we mean to guarantee.
     * Anyway, the purpose of this method is to implement a BinaryOperator combiner for a Collector,
     * so its return value will get used naturally.

        return attemptReconnect(handleInfo, 0, cause);
    }

    /**
     * Perform a single reconnection attempt
     * @param info the handle information
     * @param attempt the current attempt number (0-based)
     * @param originalCause the original exception that triggered reconnection
     * @return a future that completes with success or failure
     */

    QUICK(true, true, true, 120, 4),

    // Include cross version tests, these take care of selecting a very small set of versions to cover when run as part of this stage, including the current version
    PLATFORM(true, true, true),

     * @author koichik
     */
    protected static class DateFormatIterator implements Iterator<DateFormat> {

        /** Locale */
        protected final Locale locale;

        /** Index indicating the current style */
        protected int index;

        /**
         * Constructs an instance.
         *
         * @param locale
         *            Locale
         */

     * @author koichik
     */
    protected static class DateFormatIterator implements Iterator<DateFormat> {

        /** Locale */
        protected final Locale locale;

        /** Index indicating the current style */
        protected int index;

        /**
         * Constructs an instance.
         *
         * @param locale
         *            Locale
         */

        });
    }

    /**
     * Sets up search paging data for rendering the scheduled job list.
     *
     * @param data the render data to populate
     * @param form the search form containing current search criteria
     */
    protected void searchPaging(final RenderData data, final SearchForm form) {

## Migration from another search provider

Please see [MIGRATION.md](MIGRATION.md).

## Data Store

Currently, Fess supports crawling the following [storage locations and APIs](https://fess.codelibs.org/15.5/admin/dataconfig-guide.html):

 - [Confluence/Jira](https://github.com/codelibs/fess-ds-atlassian)

 * take advantage of the {@linkplain Futures utilities built atop the class}. The way that you will
 * create {@code ListenableFuture} instances depends on how you currently create {@code Future}
 * instances:
 *
 * <ul>
 *   <li>If you receive them from an {@code java.util.concurrent.ExecutorService}, convert that
 *       service to a {@link ListeningExecutorService}, usually by calling {@link