}
	}

	// Prepare to register the collectors. Other than `MetricGroup` collectors,
	// we also have standard collectors like `GoCollector`.

	// Create all Non-`MetricGroup` collectors here.
	collectors := map[collectorPath]prometheus.Collector{
		debugGoCollectorPath: collectors.NewGoCollector(),
	}

	// Add all `MetricGroup` collectors to the map.
	for _, mg := range allMetricGroups {

}


private
class CompositeVersionsToIncubatingCollector(

    private
    val collectors: List<VersionsToIncubatingCollector>

) : VersionsToIncubatingCollector {

    override fun collectFrom(sourceFile: File): VersionsToIncubating =
        collectors
            .flatMap { it.collectFrom(sourceFile).entries }
            .associate { it.key to it.value }
}


private

   * operation is performed. (This differs from the {@code Collector} returned by {@link
   * Collectors#toMap(Function, Function)}, which throws an {@code IllegalStateException}.)
   *
   * @since 21.0
   */
  public static <T extends @Nullable Object, K, V>
      Collector<T, ?, ImmutableBiMap<K, V>> toImmutableBiMap(
          Function<? super T, ? extends K> keyFunction,

            groupByMinor = previousMajorVersions.stream().collect(Collectors.groupingBy(Version::getMinor, Collectors.toList()));
        } else {
            groupByMinor = currentMajorVersions.stream().collect(Collectors.groupingBy(Version::getMinor, Collectors.toList()));
        }
        return groupByMinor;
    }

   * from the {@code Collector} returned by {@link Collectors#toMap(Function, Function)}, which
   * throws an {@code IllegalStateException}.)
   *
   * @since 33.2.0 (available since 21.0 in guava-jre)
   */
  @IgnoreJRERequirement // Users will use this only if they're already using streams.
  public static <T extends @Nullable Object, K, V>
      Collector<T, ?, ImmutableMap<K, V>> toImmutableMap(

                .collect(
                    Collectors.toMap(
                        Map.Entry::getKey,
                        entry -> entry.getValue()
                            .stream()
                            .map(classes::get)
                            .filter(this::implementsNamingConvention)
                            .collect(Collectors.toSet())
                    )
                );

   * IllegalArgumentException} is thrown when the collection operation is performed. (This differs
   * from the {@code Collector} returned by {@link Collectors#toMap(Function, Function)}, which
   * throws an {@code IllegalStateException}.)
   *
   * @since 21.0
   */
  public static <T extends @Nullable Object, K, V>
      Collector<T, ?, ImmutableMap<K, V>> toImmutableMap(
          Function<? super T, ? extends K> keyFunction,

 */
package org.apache.maven;

import java.io.File;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Objects;
import java.util.Optional;
import java.util.stream.Collectors;

import org.apache.maven.artifact.handler.ArtifactHandler;
import org.apache.maven.artifact.handler.DefaultArtifactHandler;

        } else {
            labelList = labelTypeItemList.stream()
                    .filter(item -> matchLocale(requestLocale, item.getLocale()) && virtualHostKey.equals(item.getVirtualHost()))
                    .collect(Collectors.toList());
        }

        final List<Map<String, String>> itemList = new ArrayList<>();

    /** Prefix for contains-based string matching patterns. */
    public static final String CONTAINS = "contains:";

    /** XML element name for collections container. */
    protected static final String COLLECTIONS = "collections";

    /** XML element name for individual collection. */
    protected static final String COLLECTION = "collection";

    /** XML element name for global parameters container. */