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From <>
Subject RE: Problem With Remote Debug OF Message Broker
Date Tue, 13 Sep 2016 16:11:16 GMT
So I've set my breakpoint in the wrong function of the wrong class?

Michael Tarullo
Contractor (Engility Corp)
Software Engineer
FAA WJH Technical Center

-----Original Message-----
From: [] On Behalf Of Tim Bain
Sent: Tuesday, September 13, 2016 11:31 AM
To: ActiveMQ Users
Subject: Re: Problem With Remote Debug OF Message Broker

I would expect start() to be called when the broker starts (hence the name) not when a client
connects.  If you really want to debug that method, there is an option you can set on the
debug port that prevents the application from running until a debugger attaches.  You can
find nore details via Google.

I'd recommend figuring out what part of the code you think the problem is in, and set the
breakpoint there.  Don't try to step through the entire codebase looking for the problem;
it'll take too long.  And be forewarned that pausing some of the code becomes a race against
time because there are timeouts on some code paths, and if you take too long it'll time out
and the behavior may change.


On Sep 13, 2016 7:41 AM, <> wrote:

I have been assigned to track down a problem that requires debugging of the message broker.

For this particular situation we are running version 5.5.1 of ActiveMQ.

I downloaded the source code for version 5.5.1 of ActiveMQ and imported it into an Eclipse
project I created for this purpose.  I then created a remote debugging configuration.  I set
a breakpoint on the first line of code in the start() function of ActiveMQConnection.  I then
start my message broker, start my Eclipse debug configuration and then start a JMS client
app (i.e. message consumer).  I can see from the messages I display in my client (consumer)
app that it makes a connection to the message broker, but the breakpoint is never hit in my
Eclipse debug session.

I selected the start() function because it was the function I was most sure would be called
by simply connecting to the message broker from a client.

Is there something I’m doing wrong to try to walk through the message broker code?  Should
I be setting breakpoints in different classes?

As an additional piece of information for anyone who decides to help with this I am attaching
a screen shot of my Eclipse debugger taken well after my JMS client has connected to the message
broker.  As you will see, the tab in Eclipse that usually displays the source code is empty.

Thanks in advance for helping with this.


*Michael Tarullo*

Contractor (Engility Corp)

Software Engineer

FAA WJH Technical Center

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