retryable-annotation.kt

@Service
class RetryableService {

    @Autowired
    private lateinit var retryTemplate: RetryTemplate

    @Retryable
    fun doWithRetry() : Unit {
        randomFail()
    }

    private fun randomFail(): Unit {
        if (random() > 0.1) {
            println("failed!")
            throw RuntimeException("failed!")
        } else {
            println("success!")
        }
    }
}