kevin-wu24 opened a new pull request, #18126:
URL: https://github.com/apache/kafka/pull/18126
Currently, test will fail on `setUp` with the following error:
```
ERROR [KafkaApi-1] Unexpected error handling request
RequestHeader(apiKey=CREATE_TOPICS, apiVersion=7, clientId=adminclient-1,
correlationId=3, headerVersion=2)
--
CreateTopicsRequestData(topics=[CreatableTopic(name='__consumer_offsets',
numPartitions=5, replicationFactor=1, assignments=[],
configs=[CreatableTopicConfig(name='compression.type', value='producer'),
CreatableTopicConfig(name='cleanup.policy', value='compact'),
CreatableTopicConfig(name='segment.bytes', value='104857600')])],
timeoutMs=29982, validateOnly=false)
with context RequestContext(header=RequestHeader(apiKey=CREATE_TOPICS,
apiVersion=7, clientId=adminclient-1, correlationId=3, headerVersion=2),
connectionId='127.0.0.1:54995-127.0.0.1:55000-1-0', clientAddress=/127.0.0.1,
principal=User:scram-admin, listenerName=ListenerName(CLIENT),
securityProtocol=SASL_SSL,
clientInformation=ClientInformation(softwareName=apache-kafka-java,
softwareVersion=4.0.0-SNAPSHOT), fromPrivilegedListener=false,
principalSerde=Optional.empty) (kafka.server.KafkaApis:76)
java.lang.IllegalArgumentException: Cannot deserialize principal from
request context RequestContext(header=RequestHeader(apiKey=CREATE_TOPICS,
apiVersion=7, clientId=adminclient-1, correlationId=3, headerVersion=2),
connectionId='127.0.0.1:54995-127.0.0.1:55000-1-0', clientAddress=/127.0.0.1,
principal=User:scram-admin, listenerName=ListenerName(CLIENT),
securityProtocol=SASL_SSL,
clientInformation=ClientInformation(softwareName=apache-kafka-java,
softwareVersion=4.0.0-SNAPSHOT), fromPrivilegedListener=false,
principalSerde=Optional.empty) since there is no serde defined
```
Removing the following config allows the actual test to start running:
```
this.serverConfig.setProperty(s"${listenerName.configPrefix}${BrokerSecurityConfigs.PRINCIPAL_BUILDER_CLASS_CONFIG}",
classOf[GroupedUserPrincipalBuilder].getName)
```
but then the `throttle-time` metrics used to validate the test aren't
properly appearing on the broker.
### Committer Checklist (excluded from commit message)
- [ ] Verify design and implementation
- [ ] Verify test coverage and CI build status
- [ ] Verify documentation (including upgrade notes)
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