class ArkeaArenaFetcher {
    fun fetch(): List<EventJpa> {
        val webClient = WebClient().apply {
            options.isCssEnabled = true
            options.isJavaScriptEnabled = true
            cssErrorHandler = SilentCssErrorHandler()
            javaScriptErrorListener = SilentJavaScriptErrorListener()
            options.isThrowExceptionOnFailingStatusCode = false
        }
        return try {
            val page = webClient.getPage<HtmlPage>("https://www.arkeaarena.com/fr/programmation/tous-les-evenements/#")
            webClient.waitForBackgroundJavaScript(4000)
            val container: HtmlElement = page.getFirstByXPath("//div[@class='events-list ajaxed']/div[@class='container']")
            val rawEvents = container.getByXPath<HtmlElement>("a")
            rawEvents.map(::htmlToInfra)
        } catch (e: Exception) {
            emptyList()
        } finally {
            webClient.close()
        }
    }
     private fun htmlToInfra(html: HtmlElement): EventJpa {
        // convert html to Kotlin object
        ...
     }
}

        finally {
            webClient.cache.clear()
            webClient.topLevelWindows.forEach { it.close(false) }
            webClient.topLevelWindows.forEach { it.jobManager.removeAllJobs() }
            webClient.cookieManager.clearCookies()
            webClient.close()
            System.gc()
        }