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Posted to dev@cocoon.apache.org by Pier Fumagalli <pi...@betaversion.org> on 2005/07/25 15:01:01 UTC
ExceptionSelector hack...
I got fed up with XALAN wrapping all sorts of exception in stupid
RuntimeException, without declaring them as the init cause (see
org.apache.xalan.transformer.TransformerImpl.run(TransformerImpl.java:
3418) for an example).
So, I wrote a little patch that might (if very lucky) reconstruct the
original exception from the message of a wrapped one by Xalan.
This happens when (for example) you have cinclude after xalan, if
cinclude fails, xalan will throw a RuntimeException without wrapping
the original ResourceNotFoundException, but simply including it in
its name.
What this patch does is that if the exception being processed is a
RuntimeException (not a subclass of), and the cause is null, it will
try to recreate an exception instance from the detail message, and if
successful, will declare that as the cause (thus allowing the
ExceptionSelector to process almost correctly).
Pier