Why does the RocketMQ Java client SDK let transaction producers and normal producers share the same defaultMQProducerImpl for sending messages, while the Go SDK requires creating two separate defaultMQProducerImpl instances?

[great123456-1]

在Go版本里面 NewTransactionProducer 和 NewProducer 会创建出2个defaultProducer JAVA 创建一个事务生产者 就可以同时发送普通和事务消息，Go里面非得创建2个这是为啥呢

[great123456-1]

func NewProducer(opts ...producer.Option) (Producer, error) {
	return producer.NewDefaultProducer(opts...)
}

func NewTransactionProducer(listener primitive.TransactionListener, opts ...producer.Option) (TransactionProducer, error) {
	return producer.NewTransactionProducer(listener, opts...)
}