private EpcCache getNewEpcList(String eoj) { ArrayList<EPC> epcGetter = new ArrayList<EPC>(); ArrayList<EPC> epcList = new ArrayList<EPC>(); EpcCache epcCache = new EpcCache(); try { // System.out.println(eoj); epcGetter.add(OBSERVABLE_EPC); epcGetter.add(SETABLE_EPC); epcGetter.add(GETABLE_EPC); // DataTransactionListenerDelegate delegate = new // EpcListTransactionListenerDelegate(epcCache); // DataTransactionListener listener = new DataTransactionListener(delegate); EpcListTransactionListener listener = new EpcListTransactionListener(epcCache); Transaction epcListTransaction = transactionFactory.makeMulticastTransaction(eoj, epcGetter, listener); listener.setTransaction(epcListTransaction); epcListTransaction.execute(); epcListTransaction.join(); // System.out.println(epcCache); } catch (SubnetException ex) { Logger.getLogger(ValidEpcCache.class.getName()).log(Level.SEVERE, null, ex); } catch (InterruptedException ex) { Logger.getLogger(ValidEpcCache.class.getName()).log(Level.SEVERE, null, ex); } return epcCache; }