gistfile1.java

    public static void main(String[] args) throws InterruptedException, ExecutionException {
            final HazelcastInstance hz = Hazelcast.newHazelcastInstance(new Config("instance1"));
            final HazelcastInstance hz2 = Hazelcast.newHazelcastInstance(new Config("instance2"));
            IExecutorService collector = hz.getExecutorService("nameCollector");
            Map<Member, Future<String>> map = collector.submitToAllMembers(new GetInstanceNameCallable());
            for (Future<String> future : map.values()) {
                System.out.println(future.get());
            }

        }

        static class GetInstanceNameCallable implements HazelcastInstanceAware, Callable<String>, Serializable {
            HazelcastInstance instance;

            @Override
            public String call() throws Exception {
                return instance.getName();
            }

            @Override
            public void setHazelcastInstance(HazelcastInstance hazelcastInstance) {
                this.instance = hazelcastInstance;
            }
        }