vendor error 2070 with XUpdate

[Kevin McCarty]

I am having trouble running XUPDATE.

When i run this from the command line (redhat) it works:

xindice xpath -c /db/tpri/teacherData -q /data/teacher/student
[EMAIL PROTECTED]'311-11-1111\']

proving that the context and the query are correct.

When i run the same query in a java program it works, also.
But when i run a XUpdate java program it doesn't work. I get an 2070 vendor
error.

This is the code I used in the XUpdate:

Collection col = null;
   ...
   String driver = "org.apache.xindice.client.xmldb.DatabaseImpl";
   Class c = Class.forName(driver);

   Database database = (Database) c.newInstance();
   DatabaseManager.registerDatabase(database);
   col = DatabaseManager.getCollection
("xmldb:xindice:///db/tpri/teacherData");

   String xupdate =
      "<xu:modifications version=\"1.0\"
xmlns:xu=\"http://www.xmldb.org/xupdate\";>\n" +
      "   <xu:remove select=\"/data/teacher/student
[EMAIL PROTECTED]'311-11-1111\']\"/>\n" +
      "</xu:modifications>\n";
   System.out.println(xupdate);

   XUpdateQueryService service =  (XUpdateQueryService) col.getService
("XUpdateQueryService", "1.0");
   service.update(xupdate);
   ...

Does any know exactly what vendor error, 2070, means?!!?

And is there any error in my code that would cause the 2070 error???

Thanks,

Kevin