I'm having a problem lately with using Xerces-J 2.0.1 lately under Tomcat that I never
seemed to have before. Perhaps it's the version that is incorrect because it seems
that Tomcat used Xerces before. The weird thing about this problem is that it doesn't
always show up in similiar test cases. I came across it while tring to set up Cocoon
2.0.2.
On my WinXP machine running Tomcat 4.0.3, Xerces 2.0.1, using the xml-api.jar from
Xalan-2.3.1, and the latest cocoon, I can get the front cocoon page to run, but a lot
of the samples bomb out with exception messages (I don't have one on hand now
unfortunately).
On a RedHat 6.2 box, using JDK 1.3.1, Tomcat 4.0.3, and the same cocoon/xerces/xalan
configuration, I get the following error even when tring to access the root of the
cocoon webapp:
type fatal
message SAX2 driver class org.apache.xerces.parsers.SAXParser does not implement
XMLReader
description java.lang.ClassCastException:
org.apache.xerces.parsers.StandardParserConfiguration
sender org.apache.cocoon.servlet.CocoonServlet
source Cocoon servlet
stack-trace
java.lang.ClassCastException: org.apache.xerces.parsers.StandardParserConfiguration
at org.xml.sax.helpers.XMLReaderFactory.createXMLReader(Unknown Source)
at org.xml.sax.helpers.XMLReaderFactory.createXMLReader(Unknown Source)
at
org.apache.cocoon.components.language.markup.AbstractMarkupLanguage.generateCode(AbstractMarkupLanguage.java:377)
at
org.apache.cocoon.components.language.generator.ProgramGeneratorImpl.generateResource(ProgramGeneratorImpl.java:365)
at
org.apache.cocoon.components.language.generator.ProgramGeneratorImpl.createResource(ProgramGeneratorImpl.java:328)
at
org.apache.cocoon.components.language.generator.ProgramGeneratorImpl.load(ProgramGeneratorImpl.java:291)
at org.apache.cocoon.sitemap.Handler.run(Handler.java:270)
at java.lang.Thread.run(Thread.java:484)
request-uri
/cocoon/
I looked through the Xerces sources, and it does seem to be the case that the xerces
SAXParser from 2.0.1 does not implement XMLReader, even through inheritance. So
apparently Tomcat wants to use it through JAXP, and my main question is why does this
error only show up part of the time. Is there an incompatibility with Tomcat 4.0.X and
the latest Xerces? Sorry for the post to multiple lists, but I'm not yet sure of where
the problem really lies. Thank you!
/S
--
Steven Cummings <[EMAIL PROTECTED]>
Columbia, MO
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