[Trinidad] about tr:inputFile misconfiguration

[Renzo Tomaselli]

Hi, I noticed that in case the parameter 
org.apache.myfaces.trinidad.UPLOAD_TEMP_DIR points to an unexisting 
directory, an exception is thrown by UploadedFileImpl, but it has no 
chance to be caught by application code, since occurring from withing 
the TrinidadFilter.
The final result is that users try to save uploaded files, but nothing 
happens and no errors are shown.
Very frustrating from the user point of view. This is the typical 
situation when things appears running fine at the developer site, while 
they don't run at all at the customer site, just because a directory is 
missing.
Any workaround to catch that exception and to report it gently to the user ?
Or is there any way to check that parameter consistency in advance, 
being usually a static issue ?

-- Renzo