RedissonLockStockFacade 트랜잭션시 실패 케이스

@Component
class RedissonLockStockFacade(
    private val redissonClient: RedissonClient,
    private val stockService: StockService
) {
    @Transactional
    fun decrease(key: Long, quantity: Long) {
        val lock = redissonClient.getLock(key.toString())
        try {
            val available = lock.tryLock(10, 1, TimeUnit.SECONDS)
            if (!available) {
                println("lock 획득 실패")
                return
            }
            stockService.decrease(key, quantity)
        } catch (e: Exception) {
            throw RuntimeException(e)
        } finally {
            lock.unlock()
        }
    }
}

RedissonLcokStockFacade 클래스의 decrease 메서드에 트랜잭션을 걸면 동일한 테스트 케이스가 실패하는데 이유를 알 수 있을까요?

@Component
class RedissonLockStockFacadeProxy(
    private val redissonLockStockFacade: RedissonLockStockFacade
    private val transaction: TransactionManager,
) {
    fun decrease(key: Long, quantity: Long) {
        traction.start()
        try {
            redissonLockStockFacade.decrease(key, quantity)
            traction.commit()
        } catch(e: Exception) {
            traction.rollback()
        }
    }
}