The Xerces implemented SchemaFactory is not used by default when using Xerces
2.8.0 with Java 5.0
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Key: XERCESJ-1175
URL: http://issues.apache.org/jira/browse/XERCESJ-1175
Project: Xerces2-J
Issue Type: Bug
Components: JAXP (javax.xml.validation)
Affects Versions: 2.8.0
Environment: Java 5.0
Xerces 2.8.0
Eclipse 3.2
Reporter: Søren Gjesse
Priority: Minor
When version 2.8.0 of xercesImpl.jar is added to the Java 5.0 classpath the
Xerces implementation of SchemaFactory is not used by default.
The reason for this is that the content of the file
META-INF/services/javax.xml.validation.SchemaFactory in xercesImpl.jar is
org.apache.xerces.jaxp.validation.XMLSchemaFactory
It should be
http\://www.w3.org/2001/XMLSchema=org.apache.xerces.jaxp.validation.XMLSchemaFactory
(note the escape character of the : after http) as Java 5.0 expects a
SchemaFactory for each schema language in this case
http\://www.w3.org/2001/XMLSchema
When running the following with Java 5.0 and version 2.8.0 of xercesImpl.jar on
the classpath
import javax.xml.XMLConstants;
...
SchemaFactory factory =
SchemaFactory.newInstance(XMLConstants.W3C_XML_SCHEMA_NS_URI);
System.out.println(factory.getClass().getName());
the output is
com.sun.org.apache.xerces.internal.jaxp.validation.xs.SchemaFactoryImpl
Which is the Java 5.0 (Xerces 2.6.2 derivate) build-in SchemaFactory and not
the Xerces 2.8.0 SchemaFactory.
There are several workarrounds one is to run java with the option
-Djavax.xml.validation.SchemaFactory:http://www.w3.org/2001/XMLSchema=org.apache.xerces.jaxp.validation.XMLSchemaFactory
Others are to use $java.home/lib/jaxp.properties or set the system property
using System.setProperty(...). See
http://java.sun.com/j2se/1.5.0/docs/api/javax/xml/validation/SchemaFactory.html#newInstance(java.lang.String)
for a description of how the SchemaFactory implementation is found.
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