OpenSAML user discussion

Hi,

 I've just downloaded OpenSAML.  I'm trying to run the POSTProfileTest.  It 
comes back with the exception below.  Could someone point me the right 
direction.

Thanks,
Amrit.

1) 
testPOSTProfile(org.opensaml.POSTProfileTest)org.apache.xml.utils.WrongParserException:
 OpenSAML requires an xml parser that supports DOM3 calls.  Xerces 2.4.0 
(built with DOM3 support) has been included with this release and is 
recommended.  If you are using Java 1.4, make sure that you have enabled the 
Endorsed Standards Override Mechanism for this parser.
        at org.opensaml.SAMLConfig.verifyUsableXmlParser(SAMLConfig.java:222)
        at org.opensaml.SAMLConfig.<init>(SAMLConfig.java:73)
        at org.opensaml.SAMLConfig.instance(SAMLConfig.java:136)
        at org.opensaml.SAMLObject.<init>(SAMLObject.java:82)
        at org.opensaml.SAMLCondition.<init>(SAMLCondition.java:67)
        at 
org.opensaml.SAMLAudienceRestrictionCondition.<init>(SAMLAudienceRestrictionCondition.java:76)
        at org.opensaml.SAMLPOSTProfile.prepare(SAMLPOSTProfile.java:310)
        at 
org.opensaml.POSTProfileTest.testPOSTProfile(POSTProfileTest.java:59)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
        at org.opensaml.POSTProfileTest.main(POSTProfileTest.java:36)

testPOSTProfile(org.opensaml.POSTProfileTest)org.apache.xml.utils.WrongParserException: