Problems with applying clientFactoryCustomizer when using a transaction producer

[youngpark17]

Describe the issue

The clientFactoryCustomizer does not register properly when it is a transaction producer.

To Reproduce

@Bean
ClientFactoryCustomizer clientFactoryCustomizer() {
	return new ClientFactoryCustomizer() {
		@Override
		public void configure(ProducerFactory<?, ?> producerFactory) {
			if (producerFactory instanceof DefaultKafkaProducerFactory) {
				((DefaultKafkaProducerFactory) producerFactory).setMaxAge(Duration.ofDays(6));
			}
		}
	};
}

spring:
  cloud:
    stream:
      kafka:
        binder:
          brokers: host
          required-acks: all
          auto-create-topics: false
          auto-add-partitions: false
          transaction:
            transaction-id-prefix: ${random.uuid}
          producer-properties:
            acks: all
            retries: 3
            enable.idempotence: true
            max.in.flight.requests.per.connection: 1
            max.block.ms: 5000
        bindings:
          outbound-test-command:
            producer:
              allowNonTransactional: false

1. make ProducerFactory in transaction producer
   

2. clientFactoryCustomizers trying to customize but clientFactoryCustomizers is empty
   

3. add clientFactoryCustomizers after customizer
   

clientFactoryCustomizer needs to set maxAge but cannot.

Version of the framework
:: Spring Boot :: (v3.4.1)
spring-cloud-stream 4.2
spring-cloud-stream-binder-kafka 4.2

Expected behavior
clientFactoryCustomizer needs to set maxAge
Screenshots

Additional context
Add any other context about the problem here.

[olegz]

Can you please provide a small application that reproduces the issue so we can take a look

[sobychacko]

@youngpark17 This turned out to be a bug in the binder. Here is a PR fixing the issue: #3091

[youngpark17]

Thank you for your immediate response.!!