Does the software support JDK21?

[zhanghb-bit]

Does the software support JDK21?
Currently, the software supports JDK8.

[toint-admin]

We are using jdk21 and nothing is wrong so far

[KouShenhai]

我们使用的是 jdk21，目前为止没有任何问题

Brother, have you encountered this problem?

2025-04-29 02:25:23.124 ---> [mqtt-client - test] - [] - [] - [ ERROR] - [] - com.hivemq.client.internal.mqtt.handler.publish.incoming.MqttIncomingQosHandler : QoS 1 PUBLISH (MqttStatefulPublish{stateless=MqttPublish{topic=/test/t, payload=258byte, qos=AT_LEAST_ONCE, retain=true}, packetIdentifier=47580, dup=false, topicAlias=4, subscriptionIdentifiers=[3]}) must not be resent (MqttStatefulPublish{stateless=MqttPublish{topic=/test/t, payload=258byte, qos=AT_LEAST_ONCE, retain=true}, packetIdentifier=47580, dup=true, topicAlias=4, subscriptionIdentifiers=[3]}) during the same connection