SW-609: Change nonexisting exception into the correct exception in messagebus.py

LCS/Messaging/python/messaging/messagebus.py

@@ -102,7 +102,7 @@ class FromBus(object):
                 logger.info('[FromBus] Ignoring duplicate reconnect option in connection init')
             self.connection = proton.utils.BlockingConnection(self.broker, **self.broker_options)
             logger.debug("[FromBus] Connected to broker: %s", self.broker)
-        except proton.utils.ConnectionException as ex:
+        except proton.ConnectionException as ex:
             logger.exception('[FromBus] Initialization failed')
             raise MessageBusError('[FromBus] Initialization failed (%s)' % ex)
 
@@ -362,7 +362,7 @@ class ToBus(object):
                 logger.info('[ToBus] Ignoring duplicate reconnect option in connection init')
             self.connection = proton.utils.BlockingConnection(self.broker, **self.broker_options)
             logger.debug("[ToBus] Connected to broker: %s", self.broker)
-        except proton.utils.ConnectionException as ex:
+        except proton.ConnectionException as ex:
             logger.exception('[ToBus] Initialization failed')
             raise MessageBusError('[ToBus] Initialization failed (%s)' % ex)