diff --git a/ems-core/src/main/java/it/integry/ems/sync/MultiDBTransaction/BasicConnectionPool.java b/ems-core/src/main/java/it/integry/ems/sync/MultiDBTransaction/BasicConnectionPool.java
index 90974c001c..e29d2a3191 100644
--- a/ems-core/src/main/java/it/integry/ems/sync/MultiDBTransaction/BasicConnectionPool.java
+++ b/ems-core/src/main/java/it/integry/ems/sync/MultiDBTransaction/BasicConnectionPool.java
@@ -194,7 +194,11 @@ public class BasicConnectionPool {
 //        poolLock.lock();
         try {
             // Calcola il numero totale di connessioni esistenti
-            int baseCount = connectionPool.get(dbName).size() + usedConnections.get(dbName).size();
+            int baseCount = 0;
+            if (connectionPool.get(dbName) != null && usedConnections.get(dbName) != null) {
+                baseCount = connectionPool.get(dbName).size() + usedConnections.get(dbName).size();
+            }
+            //int baseCount = connectionPool.get(dbName).size() + usedConnections.get(dbName).size();
             int extraCount = extraConnectionCounters.get(dbName).incrementAndGet();
 
             String connectionName = ExtraConnectionNamePrefix + (baseCount + extraCount);