diff -r 0dd550bbbef2 src/org/openbravo/dal/core/SessionHandler.java
--- a/src/org/openbravo/dal/core/SessionHandler.java	Mon Mar 13 07:48:48 2017 +0100
+++ b/src/org/openbravo/dal/core/SessionHandler.java	Mon Mar 13 12:10:06 2017 +0100
@@ -72,7 +72,11 @@
         externalConnectionPool = ExternalConnectionPool.getInstance(poolClassName);
       } catch (Throwable e) {
         externalConnectionPool = null;
-        log.warn("External connection pool class not found: " + poolClassName, e);
+        if (!log.isDebugEnabled()) {
+          log.info("Could not load external DB pool [" + poolClassName + "]. Using old pool.");
+        } else {
+          log.warn("External connection pool class not found: " + poolClassName, e);
+        }
       }
     }
     rbdms = (String) OBPropertiesProvider.getInstance().getOpenbravoProperties().get("bbdd.rdbms");