CCH0124 opened a new issue, #5107:
URL: https://github.com/apache/camel-quarkus/issues/5107
### Bug description
My routed defined below
```java
@Override
public void configure() throws UnknownHostException {
final PahoMqtt5EndpointBuilderFactory.PahoMqtt5EndpointBuilder
endpoint = pahoMqtt5("test/1/2")
.brokerUrl(brokerUrl)
.sslClientProps(properties)
.clientId(InetAddress.getLocalHost().getHostName())
.userName("123456");
log.infof("endpoint: %s", endpoint.getRawUri());
from(direct("sendMqtt"))
.marshal().json(JsonLibrary.Jsonb)
.log("${body}")
.to(endpoint);
}
```
I defined `userName` 123456, but the EMQX server message shows username as
undefined.
EMQX Server message:
```bash
...
2023-07-20T10:59:40.420785+08:00 [debug] msg: mqtt_packet_received, mfa:
emqx_channel:handle_in/2, line: 338, peername: 172.10.0.2:40048, clientid:
camel-paho-a2f84a1f-14a5-47f2-b4bd-c32a8354f012, packet: CONNECT(Q0, R0, D0,
ClientId=camel-paho-a2f84a1f-14a5-47f2-b4bd-c32a8354f012, ProtoName=MQTT,
ProtoVsn=5, CleanStart=true, KeepAlive=60, Username=undefined, Password=), tag:
MQTT
...
```
The EMQX authentication field is defined as `username`.
It caused paho5 to have an authentication failure message.
```
Caused by: org.apache.camel.RuntimeCamelException: Not authorized. (135)
```
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