Add a checkShutdownSignal(). I don't think it's legitimate to throw AlreadyClosedException here, so remove that.

Author: Simon MacMullen

test/src/com/rabbitmq/client/test/functional/TransactionsBase.java

@@ -248,8 +248,9 @@ public void testUnknownTagAck()
             txCommit();
             fail("expected exception");
         }
-        catch (IOException e) {}
-        catch (AlreadyClosedException e) {}
+        catch (IOException e) {
+            checkShutdownSignal(AMQP.NOT_FOUND, e);
+        }
         connection = null;
         openConnection();
     }