Deploying Servlet using JAXP in 9iAS 9.0.2

We are trying to get a handle to the xml parser using JAXP. We are not
writing code specific to a particular parser. Is the 9.0.2 release
compatible with JAXP? It is in this area of the code that the class is
not found. I don't see where this is relative to a particular J2EE
version.
If JAXP is supported, how do we identify to the app server which parser
JAXP should use? Is there one already defined in 9iAS? For example, to
tell JAXP to find the Xerces implementation of the parser, we set a system
property in a static initializer in the servlet:
System.setProperty("javax.xml.parsers.SAXParserFactory","org.apache.xerces.jaxp.SAXParserFactoryImpl");
System.setProperty("javax.xml.parsers.DocumentBuilderFactory","org.apache.xerces.jaxp.DocumentBuilderFactoryImpl");
Then, to get a handle to the JAXP DocumentBuilderFactory, we use:
dbf = DocumentBuilderFactory.newInstance();
This is where the exception is generated.
Should we not use JAXP and write our code specific to a particular parser?
Could this be the cause of the problem?
Thanks!!

Oracle9iAS/OC4J 9.0.3 supports JAXP 1.1 (and not 9.0.2) . Please look at http://otn.oracle.com/tech/java/oc4j/htdocs/oc4j-fov-903.html
regards
Debu

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