defer rng.Unlock()
	return rng.rand.Perm(n)
}

const (
	// We omit vowels from the set of available characters to reduce the chances
	// of "bad words" being formed.
	alphanums = "bcdfghjklmnpqrstvwxz2456789"
	// No. of bits required to index into alphanums string.
	alphanumsIdxBits = 5
	// Mask used to extract last alphanumsIdxBits of an int.
	alphanumsIdxMask = 1<<alphanumsIdxBits - 1

apiVersion: gateway.networking.k8s.io/v1beta1
kind: HTTPRoute
metadata:
  name: invalid-path-alphanum-specialchars-mix
spec:
  rules:
  - matches:
    - path:
        type: PathPrefix

// Issue 8325: corrupted byte operations during optimization
// pass.

package main

const alphanum = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ"

func main() {
	var bytes = []byte{10, 20, 30, 40, 50}

	for i, b := range bytes {
		bytes[i] = alphanum[b%byte(len(alphanum))]
	}

	for _, b := range bytes {
		switch {
		case '0' <= b && b <= '9',
			'A' <= b && b <= 'Z':
		default:

                        if (duplicateTermRemoved && symbolSize > 0) {
                            isSpace = removeLastDuplication(buf, symbolSize, isSpace, termCache);
                        }
                        // alphanum
                        if (maxAlphanumTermSize >= 0) {
                            if (alphanumSize < maxAlphanumTermSize) {
                                buf.appendCodePoint(c);