try {
URI ippuri = new URI(ippp[j]);
IppPrinter printer = new IppPrinter(ippuri);
IppResponse response;
response = printer.requestPrinterAttributes(
"printer-uri-supported", null);
Vector gg = response
.getGroupVector(IppAttributeGroup.TAG_GET_PRINTER_ATTRIBUTES);
if (gg != null) {