Eib more subscription triggering at high load (#523)

* Uplifted the logback-classic version to 1.2.10

* EIB resilience bug fixed

Co-authored-by: Shubham Gupta C <shubham.c.gupta@ericsson.com>

Author: shubhamkumarguptaTCS

src/main/java/com/ericsson/ei/subscription/RunSubscription.java

@@ -121,10 +121,9 @@ public boolean runSubscriptionOnObject(String aggregatedObject, Iterator<JsonNod
             if (count_conditions != 0 && count_condition_fulfillment == count_conditions) {
                 conditionFulfilled = true;
                 if (subscriptionRepeatFlag.equals("false") && id != null) {
-                    final String synchronizationString = new String(subscriptionName);
                     // the keyword 'synchronized' ensures that this part of the code run
                     // synchronously. Thus avoids race condition.
-                    synchronized (synchronizationString) {
+                    synchronized (this) {
                         if (!subscriptionRepeatDbHandler.checkIfAggrObjIdExistInSubscriptionAggrIdsMatchedList(
                                 subscriptionName, requirementIndex, id, false)) {
                             LOGGER.debug("Adding matched aggregated object to database:" + dataBaseName);
@@ -154,4 +153,4 @@ public static String destringify(String str) {
         str = str.replaceAll("\\[", "");
         return str;
     }
-}
+}