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From João Nuno Silva <>
Subject Programmatically create destinations in broker (not client-side handles)
Date Tue, 30 Dec 2014 15:21:43 GMT

I'm using ActiveMQ 5.10.0 in Java 8. I'm not using any container, just
*two* simple Java SE applications on the same machine. My goal is to have
*one* application launch an *embedded* broker and have the other connect to
it using tcp. I am perfectly fine with using ActiveMQ specific code, I
don't need to be vendor agnostic.

The difficulty I'm facing is that I need to *ensure a topic gets created on
the broker* when I call my API create topic method. I need this method to
work on both applications, the one that started the broker, and the one
that just connects to it. What I'm currently doing is:

// Instantiate the broker service
BrokerService brokerService = new BrokerService();

// Start the broker, this fails on the 2nd jvm with a bind exception
(address already in use) which is fine

ConnectionFactory connFactory = new
Connection connection = connFactory.createConnection();

Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
Topic clientSideTopic = session.createTopic("foo");

ConnectionContext connectionContext =

// Create the topic on the broker!
clientSideTopic, true);

The problem is that on the 2nd process, the one that should not instantiate
the broker, because 1st process already did, I cannot do
brokerService.getBroker() because I don't really have a broker...

How can I get an instance of a remote BrokerService or some other way to
achieve immediate topic creation on the broker?

BTW, not that it matters to the question, but the reason I need this is
because this is an implementation of an existing API which demands these
particular semantics.

Thanks in advance!

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