Hi Henry,
thank you very much for going so deeply into the possible cause of this
error.
I will try re-compiling the class (I have to download the sources because I
only have the jars) and I will let you know what happens.
After trying everything to be sure no other package would override the
TransformerFactory, I thought I had succeeded in that because the error
message came from Xalan, which means the system know that it has to use
Xalan's TransformerFactory, and because the CheckEnvironment() method,
called from within the jsp page, showed that I was using the correct version
of Xalan. But what you says sounds quite convincing and I think I have to go
in that direction.
Thank you very much,
Valeria
----- Original Message -----
From: "Henry Zongaro" <[EMAIL PROTECTED]>
To: "Valeria P." <[EMAIL PROTECTED]>
Cc: "Erin Harris" <[EMAIL PROTECTED]>; <xalan-j-users@xml.apache.org>
Sent: Tuesday, October 24, 2006 4:59 PM
Subject: Fw: Xalan and jstl 1.1 problem with transform tag
Hi, Valeria.
Henry Zongaro/Toronto/IBM wrote on 2006-10-24 10:50:05 AM:
There's something fishy about the error message in your note.
> javax.xml.transform.TransformerFactoryConfigurationError: Provider
> org.apache.xalan.transformer.TransformerImpl could not be
instantiated:
> java.lang.InstantiationException:
> org.apache.xalan.transformer.TransformerImpl
That message would ordinarily be reported when the
TransformerFactory.newInstance() method fails to create an instance
of the TransformerFactory implementation class, but in this case
it's reporting the name of the Transformer implementation class
instead. Perhaps some component is overriding the javax.xml.
transform.TransformerFactory system property with this wrong value.
I know that probably doesn't help you resolve the problem, but maybe
we can narrow it down further.
There is a debug flag in the javax.xml.transform.FactoryFinder class (in
xml-commons). If you're inclined to try, one thing you might do is
recompile that file with the debug flag set to true, and replace the
version of that class in xml-apis.jar. That might give a clue as to where
the faulty setting for javax.xml.transform.TransformerFactory comes from.
Thanks,
Henry
------------------------------------------------------------------
Henry Zongaro XSLT Processors Development
IBM SWS Toronto Lab T/L 969-6044; Phone +1 905 413-6044
mailto:[EMAIL PROTECTED]
