return types;
    }

    /**
     * Doesn't actually return anything. Always throws a {@link UnknownDomainObjectException}.
     *
     * @return Nothing.
     */
    private UnknownDomainObjectException unknownExtensionException(final String name) {
        throw new UnknownDomainObjectException("Extension with name '" + name + "' does not exist. Currently registered extension names: " + extensions.keySet());
    }

 *
 * If an object with the given [name] is not found, [UnknownDomainObjectException] is thrown.
 * If the object is found but cannot be cast to the expected type [T], [IllegalArgumentException] is thrown.
 *
 * @param name object name
 * @return the object, never null
 * @throws [UnknownDomainObjectException] When the given object is not found.

 * limitations under the License.
 */
package gradlebuild.docs.model

import java.nio.file.Files
import org.gradle.api.Action
import org.gradle.api.UnknownDomainObjectException
import spock.lang.Specification
import spock.lang.TempDir

class SimpleClassMetaDataRepositoryTest extends Specification {
    @TempDir File tmpDir

        list == listExtension
        set == setExtension

        when:
        storage.getByName("foo")

        then:
        thrown UnknownDomainObjectException

        when:
        storage.getByType(typeOf(String))

        then:
        thrown UnknownDomainObjectException
    }

    def "configure extension"() {
        when:
        def shouldNotExist = "shouldNotExist"

 * limitations under the License.
 */
package org.gradle.api.artifacts;

import org.gradle.api.UnknownDomainObjectException;

/**
 * An {@code UnknownRepositoryException} is thrown when a repository referenced by name cannot be found.
 */
public class UnknownRepositoryException extends UnknownDomainObjectException {
    public UnknownRepositoryException(String message) {
        super(message);
    }

package org.gradle.platform.base.internal;

import org.apache.commons.lang.StringUtils;
import org.gradle.api.Action;
import org.gradle.api.DomainObjectSet;
import org.gradle.api.Task;
import org.gradle.api.UnknownDomainObjectException;
import org.gradle.api.internal.CollectionCallbackActionDecorator;
import org.gradle.api.internal.DefaultDomainObjectSet;
import org.gradle.api.internal.TaskInternal;

 * limitations under the License.
 */

package org.gradle.api.publish.internal

import org.gradle.api.InvalidUserDataException
import org.gradle.api.NamedDomainObjectFactory
import org.gradle.api.UnknownDomainObjectException
import org.gradle.api.internal.CollectionCallbackActionDecorator
import org.gradle.api.publish.Publication
import org.gradle.internal.reflect.Instantiator
import org.gradle.util.TestUtil

 * limitations under the License.
 */

package org.gradle.platform.base.internal;

import org.gradle.api.Action;
import org.gradle.api.DomainObjectSet;
import org.gradle.api.Task;
import org.gradle.api.UnknownDomainObjectException;
import org.gradle.api.internal.DelegatingDomainObjectSet;
import org.gradle.platform.base.BinaryTasksCollection;

 * limitations under the License.
 */

package org.gradle.api.internal.artifacts;

import groovy.lang.Closure;
import org.gradle.api.Action;
import org.gradle.api.Namer;
import org.gradle.api.UnknownDomainObjectException;
import org.gradle.api.artifacts.ArtifactRepositoryContainer;
import org.gradle.api.artifacts.UnknownRepositoryException;
import org.gradle.api.artifacts.repositories.ArtifactRepository;

 * limitations under the License.
 */

package org.gradle.platform.base.internal

import org.gradle.api.Action
import org.gradle.api.DefaultTask
import org.gradle.api.Task
import org.gradle.api.UnknownDomainObjectException
import org.gradle.api.internal.CollectionCallbackActionDecorator
import org.gradle.api.tasks.Copy
import org.gradle.model.internal.core.NamedEntityInstantiator
import spock.lang.Specification