OPENDJ-1116 Introduce abstraction for the changelog DB

Jean-Noel Rouvignac

02.57.2013 9c8493a28711aff83940445f42f923c587eea4f8

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

@@ -549,7 +549,7 @@
    }
    catch(Exception e)
    {
      debugException("getChangeNumber", draftCN, e);
      debugException("getCSN", draftCN, e);
      return null;
    }
    finally