}

    private Multimap<GradleVersion, File> determineChecksumDirsByVersion() {
        Multimap<GradleVersion, File> result = ArrayListMultimap.create();
        for (File dir : listDirs(distsDir)) {
            for (File checksumDir : listDirs(dir)) {
                try {
                    GradleVersion gradleVersion = determineGradleVersionFromBuildReceipt(checksumDir);
                    result.put(gradleVersion, checksumDir);

            logger.log("Reason: " + e.getMessage());
            throw e;
        }
    }

    private void deleteLocalTopLevelDirs(final File distDir) {
        List<File> topLevelDirs = listDirs(distDir);
        for (File dir : topLevelDirs) {
            logger.log("Deleting directory " + dir.getAbsolutePath());
            deleteDir(dir);
        }
    }

	n := len(b)
	runes := make([]rune, 0, 256)
	if len(fd.lastbits) > 0 {
		b = append(fd.lastbits, b...)
		fd.lastbits = nil

	}
	for len(b) >= utf8.UTFMax || utf8.FullRune(b) {
		r, l := utf8.DecodeRune(b)
		runes = append(runes, r)
		b = b[l:]
	}
	if len(b) > 0 {
		fd.lastbits = make([]byte, len(b))
		copy(fd.lastbits, b)
	}
	// syscall.WriteConsole seems to fail, if given large buffer.