Cannot extract the lastSequenceNumber

@pawelkaczor wrote:

Hi,
In some rare circumstances (I haven’t investigated it closer) I’m getting the following error when calling EventSourcedBehavior.lastSequenceNumber:

akka.actor.typed.internal.BehaviorImpl$ReceiveMessageBehavior
java.lang.IllegalStateException: Cannot extract the lastSequenceNumber in state akka.actor.typed.internal.BehaviorImpl$ReceiveMessageBehavior
	at akka.persistence.typed.scaladsl.EventSourcedBehavior$.lastSequenceNumber(EventSourcedBehavior.scala:109)
	at akka.persistence.typed.javadsl.EventSourcedBehavior.lastSequenceNumber(EventSourcedBehavior.scala:198)

The method lastSequenceNumber is called from the command handler (of EventSourcedBehavior) when creating effect chain with the following helper method:

	protected EffectBuilder<Event, State> persist(List<Event> events) {
		long lastSeqNr = lastSequenceNumber(this.ctx);
		return Effect().persist(events).thenRun(s -> {
			forEach(withPosition(events), (eventPos, event) -> {
				long eventSeqNr = lastSeqNr + eventPos + 1;
				logEvent(event, eventSeqNr);
			});
		});
	}

Am I doing something wrong here?

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