I have a GWT application that needs to be notified when an event
occurs on the server side. Currently to manage it, I used the Timer
object to check session (updated on server-side) by making regular
asynchrounous callback after a lap of time. this solution works well
but it contains many disadvantages such as the increase of server
calls... Yesterday I found by searching a framework called
gwteventservice that allows to add listeners in the client side for
events raised on server-side. But I do not know if this framework is
compatible with GWT 2.3 and I want to know the advantages and
disadvantages of such framework. is the use of this framework
advantageous comparing to the solution i used? is there a more
advanced framework?

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