private Object evaluate(OExpression cexp, EvaluationContext ctx, QName type)
throws FaultException, EvaluationException {
try {
OXQuery10ExpressionBPEL20 oxquery10 = ((OXQuery10ExpressionBPEL20) cexp);
XQDataSource xqds = new SaxonXQDataSource();
XQConnection xqconn = xqds.getConnection();
Configuration configuration = ((SaxonXQConnection) xqconn).getConfiguration();
configuration.setAllNodesUntyped(true);
configuration.setHostLanguage(Configuration.XQUERY);