import org.apache.maven.model.merge.MavenModelMerger;
import org.codehaus.plexus.util.StringUtils;

/**
 * Handles normalization of a model.
 *
 * @deprecated use {@code org.apache.maven.api.services.ModelBuilder} instead
 */
@Named
@Singleton
@Deprecated(since = "4.0.0")
public class DefaultModelNormalizer implements ModelNormalizer {

    private DuplicateMerger merger = new DuplicateMerger();

    @Override

   * iterate over keys in their enum definition order, not encounter order.
   *
   * <p>If the mapped keys contain duplicates, the values are merged using the specified merging
   * function.
   *
   * @since 33.2.0 (available since 21.0 in guava-jre)
   */
  @IgnoreJRERequirement // Users will use this only if they're already using streams.

@Deprecated(since = "4.0.0")
public interface ProfileInjector {

    /**
     * Merges values from the specified profile into the given model. Implementations are expected to keep the profile
     * and model completely decoupled by injecting deep copies rather than the original objects from the profile.
     *
     * @param model The model into which to merge the values defined by the profile, must not be <code>null</code>.

public interface InheritanceAssembler {

    /**
     * Merges values from the specified parent model into the given child model. Implementations are expected to keep
     * parent and child completely decoupled by injecting deep copies of objects into the child rather than the original
     * objects from the parent.
     *
     * @param child The child model into which to merge the values inherited from the parent, must not be

   * merge does not affect its value. For example, if {@code rangeMap} had one entry {@code [1, 5]
   * => 3} then {@code rangeMap.merge(Range.closed(0,2), 3, Math::max)} could yield a map with the
   * entries {@code [0, 1) => 3, [1, 2] => 3, (2, 5] => 3}.
   *
   * @since 28.1
   */
  void merge(
      Range<K> range,
      @Nullable V value,

  }

  /** Merges [settings] into this peer's settings and sends them to the remote peer. */
  @Throws(IOException::class)
  fun setSettings(settings: Settings) {
    writer.withLock {
      withLock {
        if (isShutdown) {
          throw ConnectionShutdownException()
        }
        okHttpSettings.merge(settings)
      }
      writer.settings(settings)
    }

  public void testAbsent() {
    assertEquals(
        "Map.merge(absent, value, function) should return value",
        v3(),
        getMap()
            .merge(
                k3(),
                v3(),
                (oldV, newV) -> {
                  throw new AssertionFailedError(
                      "Should not call merge function if key was absent");
                }));
    expectAdded(e3());
  }

- Enhanced discovery response to support merged API groups/resources from all peer apiservers when UnknownVersionInteroperabilityProxy feature is enabled ([#133648](https://github.com/kubernetes/kubernetes/pull/133648), [@richabanker](https://github.com/richabanker)) [SIG API Machinery, Auth, Cloud...

    @Test
    void mergeEmptyMetadata() throws Exception {
        Metadata metadata = new Metadata();
        assertFalse(metadata.merge(new Metadata()));
    }

    @Test
    void mergeDifferentGAV() throws Exception {
        // merge implicitly assumes that merge is only called on the same GAV and does not perform any validation here!
        Metadata source = new Metadata();
        source.setArtifactId("source-artifact");

- `MergeDefaultEvictionSettings` indicates that defaults for the evictionHard, evictionSoft, evictionSoftGracePeriod, and evictionMinimumReclaim fields should be merged into values specified for those fields in this configuration. Signals specified in this configuration take precedence. Signals not specified in this configuration inherit their defaults. ([#127577](https://github.com/kubernetes/kubernetes/pull/127577),...