assertConfigCacheDiscarded()
    }

    @Issue("https://github.com/gradle/gradle/issues/19663")
    def "fails when disabling reaching out to key servers after previous successful build and no key rings file"() {
        given:
        createMetadataFile {
            keyServer(keyServerFixture.uri)
            verifySignatures()
            addTrustedKey("org:foo:1.0", validPublicKeyHexString)

	var p [8]byte
	for {
		if _, err := rand.Read(p[:]); err != nil {
			return err
		}
		cc.mu.Lock()
		// check for dup before insert
		if _, found := cc.pings[p]; !found {
			cc.pings[p] = c
			cc.mu.Unlock()
			break
		}
		cc.mu.Unlock()
	}
	var pingError error
	errc := make(chan struct{})
	go func() {
		cc.t.markNewGoroutine()

			if ee, ok := err.(*exec.ExitError); ok && len(ee.Stderr) > 0 {
				os.Stderr.Write(ee.Stderr)
			} else {
				fmt.Fprintln(os.Stderr, err.Error())
			}
		}
	}
	return out, err
}

// Ping pings to determine scheme to use.
func (v *Cmd) Ping(scheme, repo string) error {
	// Run the ping command in an arbitrary working directory,
	// but don't let the current working directory pollute the results.

- Enable SPDY pings to keep connections alive, so that `kubectl exec` and `kubectl portforward` won't be interrupted. ([#97083](https://github.com/kubernetes/kubernetes/pull/97083), [@knight42](https://github.com/knight42)) [SIG API Machinery and CLI]

10B36..10B38  ; disallowed                             # NA   <reserved-10B36>..<reserved-10B38>
10B39..10B3F  ; valid                  ;      ; NV8    # 5.2  AVESTAN ABBREVIATION MARK..LARGE ONE RING OVER TWO RINGS PUNCTUATION
10B40..10B55  ; valid                                  # 5.2  INSCRIPTIONAL PARTHIAN LETTER ALEPH..INSCRIPTIONAL PARTHIAN LETTER TAW