*/
    private
    fun File.injectAgentOptions(separator: String) {
        if (agentJarNames.isEmpty()) {
            return
        }
        var replacementsCount = 0
        // readLines eats EOLs, so we need to use postfix to make sure the last line ends with EOL too.
        writeBytes(readLines().joinToString(separator = separator, postfix = separator) { line ->
            when {