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Fixes #569: NoSuchElementException in Session.drainQueueToConnection #570

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May 1, 2021
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Fixes #569: NoSuchElementException in Session.drainQueueToConnection #570

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6 changes: 5 additions & 1 deletion broker/src/main/java/io/moquette/broker/Session.java
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Original file line number Diff line number Diff line change
Expand Up @@ -334,7 +334,11 @@ private MqttPublishMessage publishNotRetainedDuplicated(InFlightPacket notAckPac
private void drainQueueToConnection() {
// consume the queue
while (!sessionQueue.isEmpty() && inflighHasSlotsAndConnectionIsUp()) {
final SessionRegistry.EnqueuedMessage msg = sessionQueue.remove();
final SessionRegistry.EnqueuedMessage msg = sessionQueue.poll();
if (msg == null) {
// Our message was already fetched by another Thread.
return;
}
inflightSlots.decrementAndGet();
int sendPacketId = mqttConnection.nextPacketId();
inflightWindow.put(sendPacketId, msg);
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