[jboss-dev-forums] Xerces SAX Error in JBoss

[Robert Hughes]

Hi everybody.

 

I am currently trying to upgrade an old app from JBoss 3.2.5 to the
latest version in the hope of breathing some new life into it.

 

I have made a number of changes suggested by the upgrade guide (changing
my Datasource config etc.), however when I deploy my app am am getting
some errors related apparently to xerces.

 

I get this error if I try and deploy one web-app.

 

14:30:08,354 ERROR [Digester] Digester.getParser:

java.lang.ClassCastException:
org.apache.xerces.jaxp.SAXParserFactoryImpl

        at javax.xml.parsers.SAXParserFactory.newInstance(Unknown
Source)

 

 

I get this error when I try and access the other web-app (which seems to
deploy ok). I have checked the org.apache.xerces.parsers.SAXParser class
I am using and it definitely implements XMLReader).

 

org.jdom.JDOMException: Could not load default SAX parser:
org.apache.xerces.parsers.SAXParser: SAX2 driver class
org.apache.xerces.parsers.SAXParser does not implement XMLReader

 

I also have an ear which seems to deploy ok.

 

 

I am using JBoss 4.0.5 and have recompiled everything against the
xercesimpl.jar and xml-api.jar files found in JBoss's lib/endorsed
folder. There are no other versions of xerces in any of my ears or wars
- just that version. My initial research leads me to believe this is a
class-loading issue and that maybe my default sax parser is incorrect?

 

Anybody got any ideas?

 

Thanks for your time.

Robert Hughes

 

 

 

 

 

 

 

 

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