* Serialization: you could return an arbitrary object and the
                    `response_model` would be used to serialize that object into the
                    corresponding JSON.
                * Filtering: the JSON sent to the client will only contain the data
                    (fields) defined in the `response_model`. If you returned an object

    }

    /**
     * Adds an element at the beginning.
     *
     * @param element the object to be added
     */
    public void addFirst(final E element) {
        header.next.addBefore(element);
    }

    /**
     * Adds an element at the end.
     *
     * @param element the object to be added
     */
    public void addLast(final E element) {
        header.addBefore(element);
    }

   *
   * @since 11.0
   */
  /*
   * <? extends Object> is mostly the same as <?> to plain Java. But to nullness checkers, they
   * differ: <? extends Object> means "non-null types," while <?> means "all types."
   */
  @Override
  public ImmutableMap<K, V> getAllPresent(Iterable<? extends Object> keys) {
    Map<K, V> result = new LinkedHashMap<>();
    for (Object key : keys) {
      if (!result.containsKey(key)) {

     */
    private final Object value;

    /**
     * Constructs an instance.
     *
     * @param propertyName
     *            Property name
     * @param value
     *            Value
     * @param cause
     *            Cause
     */
    public ConverterRuntimeException(final String propertyName, final Object value, final Throwable cause) {

 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.artifact.deployer;

import javax.inject.Inject;

import java.io.File;
import java.nio.charset.StandardCharsets;
import java.nio.file.Files;

import org.apache.maven.artifact.AbstractArtifactComponentTestCase;
import org.apache.maven.artifact.Artifact;

  }

  public void testToOptionalSingleton() {
    assertThat(Stream.of(1).collect(toOptional())).hasValue(1);
  }

  public void testToOptionalNull() {
    Stream<@Nullable Object> stream = Stream.of((Object) null);
    assertThrows(NullPointerException.class, () -> stream.collect(toOptional()));
  }

  public void testToOptionalMultiple() {
    IllegalArgumentException expected =

 *
 * @param <B> the common supertype that all values will share. When in doubt, just use {@link
 *     Object}, or use {@code @Nullable Object} to allow null values.
 * @since 2.0
 */
@DoNotMock("Use ImmutableClassToInstanceMap or MutableClassToInstanceMap")
@GwtCompatible
public interface ClassToInstanceMap<B extends @Nullable Object>
    extends Map<Class<? extends @NonNull B>, B> {
  /**

                    "type": "object",
                    "properties": {
                        "item": {"$ref": "#/components/schemas/Item"},
                        "item2": {"$ref": "#/components/schemas/Item"},
                    },
                },
                "HTTPValidationError": {
                    "title": "HTTPValidationError",
                    "type": "object",
                    "properties": {

                    "type": "object",
                    "properties": {
                        "x": {"title": "X", "type": "number"},
                        "y": {"title": "Y", "type": "number"},
                    },
                },
                "HTTPValidationError": {
                    "title": "HTTPValidationError",
                    "type": "object",
                    "properties": {

                    "title": "Offer",
                    "type": "object",
                },
                "ValidationError": {
                    "title": "ValidationError",
                    "required": ["loc", "msg", "type"],
                    "type": "object",
                    "properties": {
                        "loc": {
                            "title": "Location",