SOAP Listeners

Just a general question about SOAP Listeners for all of you.

I have written a JAVA SOAP Listener to handle SOAP requests for my web
service.  I just wondered what the general practice is for listeners.  Is
it common to write your own listener or are there off the shelf packaged
listeners available?

What is the recommendation?
If you wrote your own listener, what platforms/languages are you using?

thanks,

Appreciate any input you can provide.

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