1.4.3. Ambiguous Addresses in AMQP 1.0

When a client uses an ambiguous address over AMQP 1.0 - where both a queue and an exchange of the same name exist and the client does not explicitly specify the node type - the queue is used by default. No exception or warning is printed out, and the client is not informed in any way of the ambiguity. A warning is logged by the broker when the node matches both a queue and an exchange and no specific type is specified.

When using an AMQP 0-10 client, in contrast, the following exception is reported: "Ambiguous address, please specify queue or topic as node type".