BIRT 3.7
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By dkhaywood
via danhaywood.com
Submitted: Feb 10 2012 / 17:29

Filters don't fire when bouncing off web.xml for error handling
Here’s a nice little gotcha for ya! A fairly common pattern is to use a filter that wraps the (Http)ServletRequest and (Http)ServletResponse in an app-specific wrapper. That enables other filters and servlets can downcast to get at app-specific stuff. Except... you can't always do this.
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