What is the methods of debuging Web Application based on JSF technology?

I'm new开发者_如何学C in JSF ,and I want method to trace the problem that happen in the web application , away from Web Application Server that doesn't provide useful information in most cases. any Suggestion ?

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For the server side: All modern IDEs have debuggers integrated. Use them to debug problems on the server side.

For the client side: Use the developer tools of modern browsers. Chrome has a good one integrated. For Firefox there is a plugin called Firebug (heard it is integrated in Firefox 4.0).