"<h2>Incubating since $version (${versions[version]?.run { "released on $this" } ?: "unreleased"})</h2>"
                )
                writer.println("<ul>")
                incubatingDescriptions.sorted().forEach { incubating ->
                    writer.println("   <li>${incubating.escape()}</li>")
                }
                writer.println("</ul>")
            }
            writer.println("</body></html>")

    override fun execute() {
        val byCategory = mutableMapOf<String, ReportNameToProblems>()
        parameters.reports.files.sorted().forEach { file ->
            file.forEachLine(Charsets.UTF_8) {
                val (version, _, problem) = it.split(';')
                byCategory.getOrPut(toCategory(version, file.nameWithoutExtension)) {