if (client != null) {
for (CupsBindingProvider provider : providers) {
for (String itemName : provider.getItemNames()) {
String printerName = provider.getPrinterName(itemName);
WhichJobsEnum whichJobs = provider.getWhichJobs(itemName);
if (printerName == null) {
logger.warn("printerName isn't configured properly "
+ "for the given itemName [itemName={}, printerName={}] => querying bus for values aborted!",
new Object[] { itemName, printerName });