# Sending JMS messages from a Stateless Session Bean

$Revision: 82920 $

## Overview

This example deploys a stateless session bean that then sends and receives messages from a queue. This is a very simple example that demonstrates using JBoss Messaging in a managed environment. The session bean sends a message to a test queue and then pulls the message from the queue using a different connection. The example is considered successful if the message is received correctly.
This example relies on having access to a running JBoss default instance. However, the example will automatically deploy its own queue, unless a queue with the same name is already deployed.

## Running the example

1. Set up the JBOSS_HOME environment variable to point to the JBoss instance you deployed JBoss Messaging into. For example, if you deployed JBoss Messaging in C:\jboss-5.0.0.GA\server\default\deploy, then your JBOSS_HOME value should be C:\jboss-5.0.0.GA.
2. Go to the example's home directory
cd ...\examples\stateless
3. Run the example:
ant
The output of a successful run should be similar to:

$ ant Buildfile: build.xml identify: [echo] XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX [echo] X Running the STATELESS SESSION BEAN example X [echo] XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX [echo] The queue: testQueue sanity-check: init: [mkdir] Created dir: C:\work\src\cvs\jboss-head\jms\docs\examples\stateless\output\classes\META-INF [mkdir] Created dir: C:\work\src\cvs\jboss-head\jms\docs\examples\stateless\output\lib compile: [javac] Compiling 4 source files to C:\work\src\cvs\jboss-head\jms\docs\examples\stateless\output\classes jar: [copy] Copying 2 files to C:\work\src\cvs\jboss-head\jms\docs\examples\stateless\output\classes\META-INF [jar] Building jar: C:\work\src\cvs\jboss-head\jms\docs\examples\stateless\output\lib\stateless-example.jar deploy: [copy] Copying 1 file to C:\work\src\jboss-4.2.0.GA\build\output\jboss-4.0.3SP1\server\messaging\deploy sleep: [echo] Sleeping for 5 seconds ... run: send-and-receive: [java] The Hello! message was successfully sent to the /queue/testQueue queue [java] Queue browse result: Hello! [java] Received Hello! [java] ##################### [java] ### SUCCESS! ### [java] ##################### undeploy: [delete] Deleting: C:\work\src\jboss-4.2.0.GA\build\output\jboss-4.0.3SP1\server\messaging\deploy\stateless-example.jar BUILD SUCCESSFUL Total time: 9 seconds

## Troublesooting

### 1. I get "javax.jms.JMSSecurityException: User null is NOT authenticated"

You probably didn't install JBoss Messaging correctly. A fresh JBoss Messaging installation requires changes in the security configuration of a default JBoss instance, specifically a properly configured "messaging" security domain. Follow the instructions from the "Installation" paragraph of the release documentation.