ackTimeoutRedeliveryBackoff not support "SubscriptionType.Exclusive"?

[startjava]

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@bean
public Consumer createPulsarConsumer_myTopic2() throws PulsarClientException {
Consumer consumer = pulsarClient.newConsumer().topic(myTopic2).subscriptionType(SubscriptionType.Exclusive).subscriptionName(myTopic2_subscriptionName).messageListener(myMessageListener2).ackTimeout(10, TimeUnit.SECONDS)
.ackTimeoutRedeliveryBackoff(MultiplierRedeliveryBackoff.builder()
.minDelayMs(1000)
.maxDelayMs(60 * 1000)
.multiplier(2)
.build()).subscribe();
return consumer;
}

RedeliveryBackoff time alway 12s，But use Shared is OK !
it maybe bug ?

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• I'm willing to submit a PR!

[startjava]

@codelipenghui

[tisonkun]

From the document, it writes:

Delayed message delivery only works in the Shared subscription type. In the Exclusive and Failover subscription types, the delayed message is dispatched immediately.