@get:Internal
    abstract val compatibilityDocFile: RegularFileProperty

    @TaskAction
    fun action() =
        fetchLatestKotlinVersions().let { latestKotlinVersions ->
            updateProperties(latestKotlinVersions)
            updateCompatibilityDoc(latestKotlinVersions)
        }

    private
    fun fetchLatestKotlinVersions() =

        }
        destoryTimer = new Timer("CommandGeneratorDestoryTimer-" + ComponentUtil.getSystemHelper().getCurrentTimeAsLong(), true);
        updateProperties();
    }

    protected void updateProperties() {
        final FessConfig fessConfig = ComponentUtil.getFessConfig();
        final String commandTimeoutStr = fessConfig.getSystemProperty("thumbnail.command.timeout");