for (String x : NON_RDF_EXTENSIONS) {
hdref.blackListExtension(x);
}
cache.addDereferencer("http", hdref);
cache.addDereferencer("file", new FileURIDereferencer());
cache.addDereferencer("jar", new JarURIDereferencer());
RDFParser.DatatypeHandling datatypeHandling;
String p = Ripple.getConfiguration().getString(LinkedDataSail.DATATYPE_HANDLING_POLICY);
datatypeHandling