Map<String, Object> properties = new HashMap<String, Object>();
List<Instance> instances = new LinkedList<Instance>();
Instance instance1 = new Instance("Feed1", "Instance1", "s", "st", "et", "d", "l");
Instance instance2 = new Instance("Feed1", "Instance2", "s", "st", "et", "d", "l");
Instance instance3 = new Instance("Feed1", "Instance3", "s", "st", "et", "d", "l");
instances.add(instance1);
instances.add(instance2);
instances.add(instance3);