def file = temporaryFolder.file("foo.txt")
        file.text = ZIP_ENTRY_CONTENT
        def zipStream = new ZipOutputStream(zipFile.newOutputStream())
        def zipEntry = new ZipEntry(file.name)
        zipEntry.setSize(file.size())
        zipStream.putNextEntry(zipEntry)
        zipStream.write(file.bytes)
        zipStream.close()
        return zipFile
    }

    abstract TestNameTestDirectoryProvider getTemporaryFolder()

        writeContents(bos, cl)

        ZipArchiveOutputStream zipStream = new ZipArchiveOutputStream(testFile)
        try {
            def entry = new ZipArchiveEntry(testFile.name)
            entry.setTime(lmd.getTime())
            zipStream.putArchiveEntry(entry)
            zipStream << bos.toByteArray()
            zipStream.closeArchiveEntry()
            zipStream.finish()
        } finally {

        boolean entryExtracted = false;

        ZipInputStream zipStream = null;
        BufferedOutputStream extractTargetStream = null;
        try {
            zipStream = new ZipInputStream(new FileInputStream(jarFile));
            extractTargetStream = new BufferedOutputStream(new FileOutputStream(extractToFile));