opendj-sdk/opends/src/server/org/opends/server/synchronization/ChangeNumber.java
@@ -153,7 +153,12 @@ public static int compare(ChangeNumber CN1, ChangeNumber CN2) { if (CN1 == null) return -1; { if (CN2 == null) return 0; else return -1; } else if (CN2 == null) return 1; else if (CN1.timeStamp < CN2.timeStamp)