JMS or MVC (Observer pattern) in lightweight front end?

[Beatrice Rutger]

Hi,

I am developing a pretty lightweight fronted application for our J2EE
application. The front end has several components that need notification
of the state change of other (mostly front end components).

I am worried about the "weight" of JMS libraries - i.e. using JMS
messaging for the notifications at the front end, since I want the front
end to be as lightweight as possible. I am thinking of using the
Observer/Observable design pattern to implement the notifications - am I
justified in my fear of the weight of the JMS libraries, will the
observer patter be more lightweight (like I am assuming)?

Is my fear founded/unfounded, Am I missing anything ?

Look forward to your valued insight and comments

B.