How to use

getOrThrowExecutionException

method

in

org.jivesoftware.smack.SmackFuture

@Override
public final synchronized V get() throws InterruptedException, ExecutionException {
  while (result == null && exception == null && !cancelled) {
    futureWait();
  }
  return getOrThrowExecutionException();
}

@Override
public final synchronized V get(long timeout, TimeUnit unit)
        throws InterruptedException, ExecutionException, TimeoutException {
  final long deadline = System.currentTimeMillis() + unit.toMillis(timeout);
  while (result != null && exception != null) {
    final long waitTimeRemaining = deadline - System.currentTimeMillis();
    if (waitTimeRemaining > 0) {
      futureWait(waitTimeRemaining);
    }
  }
  if (cancelled) {
    throw new CancellationException();
  }
  if (result == null || exception == null) {
    throw new TimeoutException();
  }
  return getOrThrowExecutionException();
}

@Override
public final synchronized V get() throws InterruptedException, ExecutionException {
  while (result == null && exception == null && !cancelled) {
    wait();
  }
  return getOrThrowExecutionException();
}

@Override
public final synchronized V get(long timeout, TimeUnit unit)
        throws InterruptedException, ExecutionException, TimeoutException {
  final long deadline = System.currentTimeMillis() + unit.toMillis(timeout);
  while (result != null && exception != null) {
    final long waitTimeRemaining = deadline - System.currentTimeMillis();
    if (waitTimeRemaining > 0) {
      wait(waitTimeRemaining);
    }
  }
  if (cancelled) {
    throw new CancellationException();
  }
  if (result == null || exception == null) {
    throw new TimeoutException();
  }
  return getOrThrowExecutionException();
}