I think you could use Rabbit to bridge to the JMS queues. And then just use the Elixir amqp client to talk to Rabbit. But if you have no other use for Rabbit than to be this bridge and have never managed a Rabbit server before you are bringing in some accidental complexity. Next to which just writing a Java program to look for these XML files or accept them in an HTTP payload and push them into the queue seems a bit much.
