} catch (final Exception e) {
            logger.warn("Failed to delete UrlFilter for {}", sid, e);
        }

        try {
            // clear queue
            urlQueueService.clearCache();
            urlQueueService.delete(sid);
        } catch (final Exception e) {
            logger.warn("Failed to delete UrlQueue for {}", sid, e);
        }

        try {
            // clear

    // with its `LLFirSession`.
    private val cache: ConcurrentMap<KtModule, KtAnalysisSession> = ContainerUtil.createConcurrentSoftValueMap()

    init {
        LowMemoryWatcher.register(::clearCaches, project)
    }

    override fun getAnalysisSession(useSiteKtElement: KtElement): KtAnalysisSession {
        val module = ProjectStructureProvider.getModule(project, useSiteKtElement, contextualModule = null)

        val context = facade.getAnalysisContext(useSiteKtModule, token)
        return KtFe10AnalysisSession(context, useSiteKtModule, token)
    }

    override fun clearCaches() {}