Removed a printStackTrace and replaced it by some logs
diff --git a/core-integ/src/main/java/org/apache/directory/server/core/integ/IntegrationUtils.java b/core-integ/src/main/java/org/apache/directory/server/core/integ/IntegrationUtils.java
index 11a09fd..448cbcd 100644
--- a/core-integ/src/main/java/org/apache/directory/server/core/integ/IntegrationUtils.java
+++ b/core-integ/src/main/java/org/apache/directory/server/core/integ/IntegrationUtils.java
@@ -530,7 +530,7 @@
             catch ( Exception e )
             {
                 // shouldn't happen, but print the stacktrace so that less pain during development to find the cause
-                e.printStackTrace();
+                LOG.error( "Error while closing the connections: " + e.getMessage(), e );
             }
         }