command line invocation, ant task

I'm just getting started with xmlc.  I downloaded xmlc.jar and unpacked 
it into /opt.  I created a /usr/local/bin/xmlc that looks like this:

#~/bin/bash
$JAVA_HOME/bin/java \
-cp \
/opt/xmlc/xmlc.jar:\
xerces-1.4.4-xmlc.jar:\
/opt/xmlc/gnu-regexp-1.1.4.jar \
org.enhydra.xml.xmlc.commands.xmlc.XMLC "$@"

I get this:

Exception in thread "main" java.lang.NoClassDefFoundError: 
org/apache/xerces/dom/DocumentImpl

Also, separate topic: I plan to use Ant, is there an "official" 
implementation of an ant task for xmlc?  I found one posted to the 
mailing list by Chris Kakris two years ago.  Did this or amy other 
implementation get encorporated into xmlc?

Thanks,

  -- Mike