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Justin Bertram commented on ARTEMIS-3913: ----------------------------------------- You're right. {{org.apache.activemq.artemis.spi.core.security.ActiveMQSecurityManager5#authenticate}} can't throw an {{{}ActiveMQSecurityException{}}}. It should simply return {{null}} and that in turn will trigger an {{ActiveMQSecurityException}}. This will send a {{CONNACK}} with a reason code of {{134}} if it's an MQTT 5 client or {{5}} otherwise. > MQTTReasonCodes byte loss of precision,must int type > ---------------------------------------------------- > > Key: ARTEMIS-3913 > URL: https://issues.apache.org/jira/browse/ARTEMIS-3913 > Project: ActiveMQ Artemis > Issue Type: Bug > Reporter: gongping.zhu > Priority: Major > Attachments: image-2022-08-02-08-23-52-965.png, > image-2022-08-02-08-24-39-288.png, image-2022-08-02-08-31-01-074.png, > image-2022-08-02-08-42-24-117.png, image-2022-08-02-08-43-39-442.png, > image-2022-08-02-08-45-11-459.png, image-2022-08-02-08-54-34-267.png > > -- This message was sent by Atlassian Jira (v8.20.10#820010)