protected
    fun generateSubprojectsJson(): String {
        val subprojects = generateSubprojects()
        val gson = GsonBuilder().setPrettyPrinting().create()
        return gson.toJson(subprojects) + '\n'
    }

    private
    fun generateSubprojectsDirectories(): List<File> {

        def stringWriter = new StringWriter()
        new JsonWriter(stringWriter).withCloseable { writer ->
            writer.setIndent("    ")
            new Gson().toJson(acceptanceJson, AcceptedApiChange, writer)
        }
        return stringWriter.toString()
    }

    String getCurrentVersion() {
        return context.getUserData().get("currentVersion")
    }