I want to point out for the readers of this blog (mainly Java, Flex and Livecycle developers) an article I published on my personal blog :
Passing connection-level credentials to the JMSAdapter of BlazeDS
One of the limit if the Messaging Services of Livecycle Data Services is the inability to define a username and password in the configuration file to pass them to the JMS.
I discovered that in BlazeDS there is a new JMSAdapter that allows you to set the connection-level credentials passing the username and password.
The new connection-credentials XML node sets the the username and password used while creating the JMS connection.As the documentation said, use only if JMS connection level authentication is being used :

...

Topic
javax.jms.TextMessage
jms/flex/TopicConnectionFactory

jms/topic/flex/simpletopic

NON_PERSISTENT
DEFAULT_PRIORITY
"true"
AUTO_ACKNOWLEDGE

1

For many developers this new features supported by the JMSAdapter could be very appreciated and could solve problems in many different scenarios where the authentication is required in JMS.

Read the full Passing connection-level credentials to the JMSAdapter of BlazeDS article.