@Override
public Void call() throws Exception
{
DistributedDoubleBarrier barrier = new DistributedDoubleBarrier(client, "/barrier", QTY);
Assert.assertTrue(barrier.enter(timing.seconds(), TimeUnit.SECONDS));
synchronized(TestDistributedDoubleBarrier.this)
{
int thisCount = count.incrementAndGet();
if ( thisCount > max.get() )