Mqttv5 client should throw MqttException if pubAck/pubRec is received with reason code >= 0x80

[harshitsharma635]

Mqttv5 client when receives PubAck with reason code 131 (Implementation specific error) does not throw MqttException to notify the application developer that publish has failed.

20260625 075641.251 org.eclipse.paho.mqttv5.client.wire.MqttInputStream              readMqttWireMessage            Pub33: Received MqttPubAck [returnCode=131, properties=MqttProperties [validProperties=[31, 38]]]
20260625 075641.251 org.eclipse.paho.mqttv5.client.internal.ClientState              notifyReceivedAck              Pub33: received key=1 message=MqttPubAck [returnCode=131, properties=MqttProperties [validProperties=[31, 38]]]
20260625 075641.251 org.eclipse.paho.mqttv5.client.internal.Token                    markComplete                   Pub33: >key=1 response=MqttPubAck [returnCode=131, properties=MqttProperties [validProperties=[31, 38]]] excep=null
20260625 075641.251 org.eclipse.paho.mqttv5.client.internal.Token                    notifyComplete                 Pub33: >key=1 response=MqttPubAck [returnCode=131, properties=MqttProperties [validProperties=[31, 38]]] excep=null
20260625 075641.251 org.eclipse.paho.mqttv5.client.internal.ClientState              notifyResult                   Pub33: key1, msg=MqttPubAck [returnCode=131, properties=MqttProperties [validProperties=[31, 38]]], excep=null
20260625 075641.251 org.eclipse.paho.mqttv5.client.internal.Token                    waitForResponse                Pub33: key=1 response=MqttPubAck [returnCode=131, properties=MqttProperties [validProperties=[31, 38]]]
20260625 075641.251 org.eclipse.paho.mqttv5.client.internal.CommsCallback            asyncOperationComplete         Pub33: new workAvailable. key=1
20260625 075641.252 org.eclipse.paho.mqttv5.client.internal.CommsReceiver            run                            Pub33: network read message
20260625 075641.252 org.eclipse.paho.mqttv5.client.internal.CommsCallback            handleActionComplete           Pub33: callback and notify for key=1
20260625 075641.252 org.eclipse.paho.mqttv5.client.internal.ClientState              notifyComplete                 Pub33: received key=1 token=org.eclipse.paho.mqttv5.client.MqttToken@56e8b606 message=MqttPubAck [returnCode=131, properties=MqttProperties [validProperties=[31, 38]]]
20260625 075641.252 org.eclipse.paho.mqttv5.client.internal.ClientState              decrementInFlight              Pub33: -1 actualInFlight=0
20260625 075641.252 org.eclipse.paho.mqttv5.client.internal.ClientState              get                            Pub33: new work or ping arrived 
20260625 075641.252 org.eclipse.paho.mqttv5.client.internal.CommsTokenStore          removeToken                    Pub33: key=1
20260625 075641.252 org.eclipse.paho.mqttv5.client.internal.ClientState              notifyComplete                 Pub33: removed Qos 1 publish. key=1
20260625 075641.252 org.eclipse.paho.mqttv5.client.internal.ClientState              get                            Pub33: wait for new work or for space in the inflight window
20260625 075641.252 org.eclipse.paho.mqttv5.client.internal.Token                    notifyComplete                 Pub33: >key=1 response=MqttPubAck [returnCode=131, properties=MqttProperties [validProperties=[31, 38]]] excep=null
20260625 075641.252 org.eclipse.paho.mqttv5.client.internal.CommsCallback            run                            Pub33: notify spaceAvailable
20260625 075641.252 org.eclipse.paho.mqttv5.client.internal.CommsCallback            run                            Pub33: wait for workAvailable