OpenSAML user discussion

["Scott Cantor" <>]

> I have a Java program in which the first interesting thing I 
> do is to instantiate a SAMLNameIdentifier.  
> SAMLConfig.verifyUsableXmlParser() throws a 
> javax.xml.parsers.FactoryConfigurationError exception and 
> states "OpenSAML requires an xml parser that supports DOM3 
> calls. Sun JAXP 1.3 has been included with this release and 
> is strongly recommended. If you are using Java 1.4, make sure 
> that you have enabled the Endorsed Standards Override 
> Mechanism for this parser (see 
> http://java.sun.com/j2se/1.4.2/docs/guide/standards/ for details)."

The DOM3 check is based on checking for a method in a class in the
org.w3c.dom package. The right classes must be getting hidden by a copy of
the interface classes somewhere else. I think you might be able to trace the
classloader and find out where it's getting them.

> p.s. Just an extra note: if I run 'java 
> org.apache.xerces.impl.Version' it responds with 'Xerces-J 
> 2.7.1'.

That just means the implementation classes aren't hidden, even though the
DOM API is.

-- Scott