OPENDJ-1116 Introduce abstraction for the changelog DB

Jean-Noel Rouvignac

08.55.2013 68fde1b50ba683919007b188eccc917708e8a7de

 opends/src/server/org/opends/server/replication/server/changelog/je/JEChangelogDB.java

@@ -71,7 +71,7 @@
   * <p>
   * Guarded by cnIndexDBLock
   */
  private ChangeNumberIndexDB cnIndexDB;
  private JEChangeNumberIndexDB cnIndexDB;

  /** Used for protecting {@link ChangeNumberIndexDB} related state. */
  private final Object cnIndexDBLock = new Object();