ClassCastException when moving from 2.5 to 3.0
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Key: MPCHECKSTYLE-53
URL: http://jira.codehaus.org/browse/MPCHECKSTYLE-53
Project: maven-checkstyle-plugin
Type: Bug
Versions: 3.0
Environment: Windows/Linux
Java 5.0
Maven 1.x
Reporter: Bernard Durfee
The error I get...
BUILD FAILED
File......
/home/cruisecontrol/.maven/cache/maven-checkstyle-plugin-3.0/plugin.jelly
Element... style
Line...... 238
Column.... 59
java.lang.ClassCastException: org.apache.xerces.jaxp.SAXParserImpl$JAXPSAXParser
...is usually caused when an application is specifically looking for Xerces
classes, instead of always going through JAXP interfaces and factories.
My application uses XSLT 2.0 features, which are not supported by Xerces/Xalan.
So I have a file in my JDK lib directory named "jaxp.properties"...
{code}
# JAXP Factories
javax.xml.parsers.SAXParserFactory = oracle.xml.jaxp.JXSAXParserFactory
javax.xml.parsers.DocumentBuilderFactory =
oracle.xml.jaxp.JXDocumentBuilderFactory
javax.xml.transform.TransformerFactory =
oracle.xml.jaxp.JXSAXTransformerFactory
{code}
...which causes the JDK to default to the Oracle parser, which supports XSLT
2.0.
My hunch is that somewhere in the code the JAXP TransformerFactory is called,
which returns the Oracle object, but someone is assuming that the Xerces object
will be returned and are casting the object to get at some Xerces specific
feature.
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