try {
            envMap.put("COMPUTERNAME", "xxx");
            assertEquals("xxx", systemHelper.getHostname());
        } finally {
            envMap.remove("COMPUTERNAME");
        }
        try {
            envMap.put("HOSTNAME", "yyy");
            assertEquals("yyy", systemHelper.getHostname());
        } finally {
            envMap.remove("HOSTNAME");
        }
    }

		outEnv := make([]map[string]any, len(envMap))
		keys := make([]string, 0, len(envMap))
		for k := range envMap {
			keys = append(keys, k)
		}
		sort.Strings(keys)
		for i, k := range keys {
			outEnv[i] = make(map[string]any)
			outEnv[i]["name"] = k
			outEnv[i]["value"] = fmt.Sprintf("%v", envMap[k])
		}

		envVars := candidates.ToSlice()
		for _, envVar := range envVars {
			for _, param := range validKeys {
				pEnvName := getEnvVarName(subSys, Default, param) + Default
				if len(envVar) > len(pEnvName) && strings.HasPrefix(envVar, pEnvName) {
					// This envVar is valid - it has a
					// non-empty target.
					candidates.Remove(envVar)
				}
			}
		}

func ExpandContainerVolumeMounts(mount v1.VolumeMount, envs []EnvVar) (string, error) {

	envmap := envVarsToMap(envs)
	missingKeys := sets.New[string]()
	expanded := expansion.Expand(mount.SubPathExpr, func(key string) string {
		value, ok := envmap[key]
		if !ok || len(value) == 0 {
			missingKeys.Insert(key)
		}
		return value

				}
			} else {
				for _, env := range args {
					i := strings.Index(env, "=")
					if i < 0 {
						// Display value instead of setting it.
						fmt.Fprintf(out, "%s=%s\n", env, s.envMap[env])
						continue
					}
					if err := s.Setenv(env[:i], env[i+1:]); err != nil {
						return nil, err
					}
				}
			}
			var wait WaitFunc
			if out.Len() > 0 || len(args) == 0 {

		for k, v := range resp.Envs {
			if e, ok := envsMap[k]; ok {
				klog.V(4).InfoS("Skip existing env", "envKey", k, "envValue", v)
				if e != v {
					klog.ErrorS(nil, "Environment variable has conflicting setting", "envKey", k, "expected", v, "got", e)
				}
				continue
			}
			klog.V(4).InfoS("Add env", "envKey", k, "envValue", v)
			envsMap[k] = v

        checkState(newMap instanceof MapMakerInternalMap);
        newMap.putAll(map);
        return newMap;
      }
    },
    MapMakerWeakKeysStrongValues {
      @Override
      public <K extends Comparable<K>, V> Map<K, V> create(Map<K, V> map) {
        ConcurrentMap<K, V> newMap = new MapMaker().weakKeys().makeMap();

	}
	ar, arChanged := cfg.EnvOrAndChanged("AR", "ar")
	env = append(env, cfg.EnvVar{Name: "AR", Value: ar, Changed: arChanged})
	env = append(env, cfg.EnvVar{Name: "CC", Value: cc, Changed: ccChanged})
	env = append(env, cfg.EnvVar{Name: "CXX", Value: cxx, Changed: cxxChanged})

	if cfg.BuildContext.CgoEnabled {
		env = append(env, cfg.EnvVar{Name: "CGO_ENABLED", Value: "1", Changed: cfg.CGOChanged})
	} else {

      @SuppressWarnings("unchecked") // safe since map is not writable
      ImmutableMap<K, V> kvMap = (ImmutableMap<K, V>) map;
      return kvMap;
    } else if (map instanceof EnumMap) {
      EnumMap<?, ?> enumMap = (EnumMap<?, ?>) map;
      for (Entry<?, ?> entry : enumMap.entrySet()) {
        checkNotNull(entry.getKey());
        checkNotNull(entry.getValue());
      }

		name            string
		container       *v1.Container
		envs            []EnvVar
		expectedCommand []string
		expectedArgs    []string
	}{
		{
			name:      "none",
			container: &v1.Container{},
		},
		{
			name: "command expanded",
			container: &v1.Container{
				Command: []string{"foo", "$(VAR_TEST)", "$(VAR_TEST2)"},
			},
			envs: []EnvVar{
				{
					Name:  "VAR_TEST",
					Value: "zoo",
				},
				{