When JTS is enabled in the `Transactions` section of the web management console ("Profile -> Container -> Transactions"), it it is necessary to also set the attribute `transactions` to the value `on` in the JacORB subystem. The intended behaviour is that transactions are enabled when JTS is enabled. The cause of this issue is under investigation. Until it is resolved, the workaround is to ensure that the `transactions` attribute is also set to `on`. Note that the transactions subsystem is available only in the `full` and `full-ha` profiles.