### ConfigMap
* Volumes and environment variables populated from ConfigMap and Secret objects can now tolerate the named source object or specific keys being missing, by adding `optional: true` to the volume or environment variable source specifications. ([#39981](https://github.com/kubernetes/kubernetes/pull/39981), [@fraenkel](https://github.com/fraenkel))

        Handler handler = new Handler();
        Handler.StorageURLConnection conn = (Handler.StorageURLConnection) handler.openConnection(url);

        // Ensure environment variables are not set (in real scenario)
        // In this test, we expect IOException when endpoint is blank
        try {
            conn.connect();
            fail("Should throw IOException when endpoint is not set");

 | | <<<$\{java.home\}>>> |
*----+------+------+
| <<<*>>> | User properties | <<<$\{foo\}>>> |
*----+------+------+
| <<<env.*>>>\
<<<*>>> | environment variables | <<<$\{env.PATH\}>>> |
*----+------+------+
| <<<settings.*>>> | Local user settings (see {{{../maven-settings/settings.html}settings reference}}) | <<<$\{settings.localRepository\}>>> |
*----+------+------+

    }

    /**
     * Gets the system properties to use for interpolation and profile activation. The system properties are collected
     * from the runtime environment like {@link System#getProperties()} and environment variables.
     *
     * @return The system properties, never {@code null}.
     */
    public Properties getSystemProperties() {
        return request.getSystemProperties();
    }

   */
  protected final String escapeSlow(String s, int index) {
    int end = s.length();

    // Get a destination buffer and setup some loop variables.
    char[] dest = Platform.charBufferFromThreadLocal();
    int destIndex = 0;
    int unescapedChunkStart = 0;

    while (index < end) {
      int cp = codePointAt(s, index, end);
      if (cp < 0) {

	for metricName, mv := range m.values {
		desc := m.descriptors[metricName]
		promDesc := desc.toPromDesc(namePrefix, extraLabels)
		for _, v := range mv {
			// labelValues is in the same order as the variable labels in the
			// descriptor.
			labelValues := make([]string, 0, len(v.Labels))
			for _, k := range desc.VariableLabels {
				labelValues = append(labelValues, v.Labels[k])
			}
			metrics = append(metrics,

    default: str
    description: Optional[str] = None


class Server(BaseModelWithConfig):
    url: Union[AnyUrl, str]
    description: Optional[str] = None
    variables: Optional[dict[str, ServerVariable]] = None


class Reference(BaseModel):
    ref: str = Field(alias="$ref")


class Discriminator(BaseModel):
    propertyName: str

	"github.com/minio/pkg/v3/env"
	xnet "github.com/minio/pkg/v3/net"
)

func authNLogIf(ctx context.Context, err error) {
	logger.LogIf(ctx, "authN", err)
}

// Authentication Plugin config and env variables
const (
	URL        = "url"
	AuthToken  = "auth_token"
	RolePolicy = "role_policy"
	RoleID     = "role_id"

	EnvIdentityPluginURL        = "MINIO_IDENTITY_PLUGIN_URL"

	if err != nil {
		return nil, nil, err
	}
	if GlobalKMS == nil {
		return NewPutObjReader(hr), &ObjectOptions{MaxParity: true}, nil
	}

	// Note: Local variables with names ek, oek, etc are named inline with
	// acronyms defined here -
	// https://github.com/minio/minio/blob/master/docs/security/README.md#acronyms

	// Encrypt json encoded tier configurations

    * If you are running E2E tests which require SSH keys and you utilize environment variables to override their location, you may need to modify the environment variable set. On all providers the environment variable override can now be either an absolute path to the key or a relative path (relative to ~/.ssh). Specifically the changes are: