init {
        val lowestInterestingVersion = GradleVersion.version("0.8")
        val lowestTestedVersion = GradleVersion.version("1.0")

        val releasedVersions = releasedVersionsFile.asFile.reader().use {
            Gson().fromJson(it, ReleasedVersions::class.java)
        }

        val latestFinalRelease = releasedVersions.finalReleases.first()

            timeZone = TimeZone.getTimeZone("UTC")
        }

        fun readBuildReceiptFromString(buildReceipt: String) =
            Properties().apply { load(buildReceipt.reader()) }

        const val buildReceiptFileName = "build-receipt.properties"
        const val buildReceiptLocation = "org/gradle/$buildReceiptFileName"
    }

    @get:Input
    abstract val version: Property<String>

                fun visitClassFile(file: Path) {
                    try {
                        val reader = ClassReader(Files.newInputStream(file))
                        val details = classes[reader.className]
                        details.visited = true
                        val classWriter = ClassWriter(0)
                        reader.accept(
                            ClassRemapper(
                                classWriter,