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The servlet spec, as always, is rather restrictive in regards to error-page configuration. If your email service or an external payment service goes down, you can't do much more than display an error message to the user, so why would you need to implement separate pages for each exception? Often, it'd be nicer if you could just reuse the page template for any fatal exception but and simply display a different error message. Tapestry-exceptionpage allows you to contribute handlers for specific types of exceptions and provide context for rendering the error page for that specific exception.

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