public interface ClassRealmManager {

    /**
     * Gets the class realm hosting the Maven core.
     *
     * @return The class realm hosting the Maven core, never {@code null}.
     */
    ClassRealm getCoreRealm();

    /**
     * Gets the class realm exposing the Maven API. This is basically a restricted view on the Maven core realm.
     *
     * @return The class realm exposing the Maven API, never {@code null}.
     */

        /**
         * A class realm for a build extension.
         */
        Extension,

        /**
         * A class realm for a plugin.
         */
        Plugin,
    }

    /**
     * Gets the type of the class realm.
     *
     * @return The type of the class realm, never {@code null}.
     */
    RealmType getType();

    /**
     * Gets the parent class realm (if any).
     *

) {
  /**
   * Returns the auth params, including [realm] and [charset] if present, but as
   * strings. The map's keys are lowercase and should be treated case-insensitively.
   */
  @get:JvmName("authParams")
  val authParams: Map<String?, String>

  /** Returns the protection space. */
  @get:JvmName("realm")
  val realm: String?
    get() = authParams["realm"]

        public ClassRealm getRealm() {
            return realm;
        }

        public List<Artifact> getArtifacts() {
            return artifacts;
        }

        private final ClassRealm realm;

        private final List<Artifact> artifacts;

        public CacheRecord(ClassRealm realm, List<Artifact> artifacts) {
            this.realm = realm;
            this.artifacts = artifacts;
        }
    }

            return realm;
        }

        public DependencyFilter getExtensionArtifactFilter() {
            return extensionArtifactFilter;
        }

        private final ClassRealm realm;

        private final DependencyFilter extensionArtifactFilter;

        CacheRecord(ClassRealm realm, DependencyFilter extensionArtifactFilter) {
            this.realm = realm;

    /**
     * CacheRecord
     */
    class CacheRecord {

        private final ClassRealm realm;

        private final ExtensionDescriptor descriptor;

        private final List<Artifact> artifacts;

        CacheRecord(ClassRealm realm, ExtensionDescriptor descriptor, List<Artifact> artifacts) {
            this.realm = realm;
            this.descriptor = descriptor;
            this.artifacts = artifacts;
        }

  "http://localhost:8080/auth/realms/{realm}/protocol/openid-connect/token"
```

The result will be a JSON document. To invoke the API you need to extract the value of the access_token property. You can then invoke the API by including the value in the Authorization header of requests to the API.

The following example shows how to get the details of the user with `{userid}` from `{realm}` realm:

```
curl \

func WithAdminURL(url string) Option {
	return func(p *KeycloakProvider) {
		p.adminURL = url
	}
}

// WithRealm provide realm configuration for Keycloak
func WithRealm(realm string) Option {
	return func(p *KeycloakProvider) {
		p.realm = realm
	}
}

// KeyCloak initializes a new keycloak provider
func KeyCloak(opts ...Option) (Provider, error) {
	p := &KeycloakProvider{}

            final ExpressionEvaluator evaluator,
            final ClassRealm realm,
            final ConfigurationListener listener)
            throws ComponentConfigurationException {
        try {
            ClassRealmConverter.pushContextRealm(realm);

            this.configureComponent(component, configuration, evaluator, (ClassLoader) realm, listener);
        } finally {
            ClassRealmConverter.popContextRealm();

            throws InvalidRepositoryException;

    /**
     * Creates the project realm that hosts the build extensions of the specified model.
     *
     * @param project The project to create the project realm for, must not be {@code null}
     * @param model The model to create the project realm for, must not be {@code null}