} else {
          fail(
              rootLocaleFormat(
                  "Feature enum %s contains a class named "
                      + "'Require' but it is not an annotation.",
                  featureEnumClass));
        }
        return;
      }
    }
    fail(
        rootLocaleFormat(
            "Feature enum %s should contain an " + "annotation named 'Require'.",
            featureEnumClass));
  }

  private int size;

  enum CollectionType {
    ARRAY_LIST(ArrayList::new),
    LINKED_LIST(LinkedList::new);

    final Supplier<Collection<Object>> supplier;

    private CollectionType(Supplier<Collection<Object>> supplier) {
      this.supplier = supplier;
    }
  }

  @Param private CollectionType source;

  enum Operation {
    FIND_FIRST {
      @Override

    List<String> temp = new ArrayList<>();
    for (Feature<?> feature : features) {
      Object featureAsObject = feature; // to work around bogus JDK warning
      if (featureAsObject instanceof Enum) {
        Enum<?> f = (Enum<?>) featureAsObject;
        temp.add(f.getDeclaringClass().getSimpleName() + "." + feature);
      } else {
        temp.add(feature.toString());
      }
    }
    return temp.toString();
  }

 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.repository.metadata;

/**
 * MetadataResolutionRequestTypeEnum
 */
@Deprecated
public enum MetadataResolutionRequestTypeEnum {
    tree(1),
    graph(2),
    classpathCompile(3),
    classpathTest(4),
    classpathRuntime(5),
    versionedGraph(6),
    scopedGraph(7);

    private int id;

 * implementation.
 *
 * @since 3.1.0
 */
public interface Slf4jConfiguration {
    /**
     * Level
     */
    enum Level {
        DEBUG,
        INFO,
        ERROR
    }

    /**
     * Set root logging level.
     *
     * @param level the level
     */
    void setRootLoggerLevel(Level level);

    /**

/**
 * Optional features of classes derived from {@link Multiset}.
 *
 * @author Louis Wasserman
 */
@SuppressWarnings("rawtypes") // maybe avoidable if we rework the whole package?
@GwtCompatible
public enum MultisetFeature implements Feature<Multiset> {
  /**
   * Indicates that elements from {@code Multiset.entrySet()} update to reflect changes in the
   * backing multiset.
   */
  ENTRIES_ARE_VIEWS;

  @Override

import java.util.HashSet;
import java.util.Set;
import java.util.concurrent.Executor;

/** Measures the size of AbstractFuture implementations. */
public class AbstractFutureFootprintBenchmark {

  enum State {
    NOT_DONE,
    FINISHED,
    CANCELLED,
    FAILED
  }

  @Param State state;
  @Param Impl impl;

  @Param({"0", "1", "5", "10"})
  int numListeners;

  @Param({"0", "1", "5", "10"})

/**
 * Optional features of classes derived from {@code Map}.
 *
 * @author George van den Driessche
 */
@SuppressWarnings("rawtypes") // maybe avoidable if we rework the whole package?
@GwtCompatible
public enum MapFeature implements Feature<Map> {
  /**
   * The map does not throw {@code NullPointerException} on calls such as {@code containsKey(null)},
   * {@code get(null)}, {@code keySet().contains(null)} or {@code remove(null)}.
   */

 * suggestions.
 *
 */
public class SortedCopyBenchmark {
  @Param({"1", "10", "1000", "1000000"})
  int size; // logarithmic triangular

  @Param boolean mutable;

  @Param InputOrder inputOrder;

  enum InputOrder {
    SORTED {
      @Override
      void arrange(List<Integer> list) {
        sort(list);
      }
    },
    ALMOST_SORTED {
      @Override
      void arrange(List<Integer> list) {

 * that exhibits the problem.
 *
 */
public interface Problem {

    /**
     * The different severity levels for a problem, in decreasing order.
     */
    enum Severity {
        FATAL, //
        ERROR, //
        WARNING //
    }

    /**
     * Gets the hint about the source of the problem. While the syntax of this hint is unspecified and depends on the