jdk/rdf-api~SiRPAC issue

I've written a program that happily works on some variants of jdk
1.3, yet not others even on the same platform.  I have outlined
the problem below, basically I run the same exact command on the
same class files, just with a different jdk, and I get a "fatal
error" returned from SiRPAC.  I'm doing this on Solaris, but I get
the exact same error returned when I use a windows version of the
jdk 1.3 as well.  Any help on this would be greatly appreciated.


###### this version of java doesn't work
$ /projs1/Java/jdk1.3/current/bin/java -classpath .:../rdfapi/rdf-api-2001-01-19.jar DAML_Main http://edge.mcs.drexel.edu/MUG/2001/05/25/mug.daml > output
org.xml.sax.SAXException: Fatal error GIVES MESSAGE Fatal error.
org.xml.sax.SAXException: Fatal error
        at org.w3c.rdf.implementation.syntax.sirpac.SiRPAC.parse(SiRPAC.java:438)
        at org.w3c.rdf.util.RDFUtil.parse(RDFUtil.java:342)
        at DAML_Ontology.<init>(daml.java:439)
        at DAML_Main.main(daml.java:144)
*** Error code 1

------------------------------------------------------------------
###### same line with different jdk works
$ /usr/local/bin/java -classpath .:../rdfapi/rdf-api-2001-01-19.jar DAML_Main http://edge.mcs.drexel.edu/MUG/2001/05/25/mug.daml > output
-PROGRAM COMPLETE


# VERSION INFO
[2200] [uccera@cosine:daml]$ /usr/local/bin/java -version
java version "1.3.0"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.3.0)
Java HotSpot(TM) Client VM (build 1.3.0, mixed mode)
[2200] [uccera@cosine:daml]$ /projs1/Java/jdk1.3/current/bi
n/java -version
java version "1.3.0"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.3.0)
Java HotSpot(TM) Client VM (build 1.3.0, mixed mode)

Received on Friday, 25 May 2001 22:07:42 UTC