* (if applicable). This process will essentially remove duplicate repositories by merging them into one equivalent
     * repository. It is worth to point out that merging does not simply choose one of the input repositories and
     * discards the others but actually combines their possibly different policies.
     *

import org.apache.maven.model.Plugin;
import org.apache.maven.model.PluginContainer;

/** @deprecated */
@Deprecated
public final class ModelUtils {

    /**
     * This should be the resulting ordering of plugins after merging:
     * <p>
     * Given:
     * <pre>
     * parent: X -&gt; A -&gt; B -&gt; D -&gt; E
     * child: Y -&gt; A -&gt; C -&gt; D -&gt; F
     * </pre>
     * Result:
     * <pre>

        // snapshot timestamp, or some other timestamp later encoded into the metadata.
        // TODO this needs to be repeated here so the merging doesn't interfere with the written metadata
        //  - we'd be much better having a pristine input, and an ongoing metadata for merging instead

        Map<ArtifactRepository, Metadata> previousMetadata = new HashMap<>();
        ArtifactRepository selected = null;

   * and column pair, they will be combined with the specified merging function in encounter order.
   *
   * <p>The returned {@code Collector} will throw a {@code NullPointerException} at collection time
   * if the row, column, value, or merging functions return null on any input.
   *
   * @since 33.2.0 (available since 21.0 in guava-jre)
   */

        return null;
    }

    @Override
    public void setRepository(ArtifactRepository remoteRepository) {
        /*
         * NOTE: Metadata at the g:a level contains a collection of available versions. After merging, we can't tell
         * which repository provides which version so the metadata manager must not restrict the artifact resolution to
         * the repository with the most recent updates.
         */
    }

   - Include context in the summary: what changed, why, and any issue references.
   - Use `[WIP]` for in-progress PRs to avoid premature merging or choose GitHub draft PRs.

2. **Commits**:
   - Write clear messages: what changed and why (e.g., “Refactor S3 API handler to reduce latency so that requests process 20% faster”).

         * the first occurrence. So when we're in lenient/compat mode, we have to deal with such broken POMs and mimic
         * the way 2.x works. When we're in strict mode, the removal of duplicates just saves other merging steps from
         * aftereffects and bogus error messages.
         */
        List<Dependency> dependencies = model.getDependencies();
        Map<String, Dependency> normalized = new LinkedHashMap<>(dependencies.size() * 2);

   * and column pair, they will be combined with the specified merging function in encounter order.
   *
   * <p>The returned {@code Collector} will throw a {@code NullPointerException} at collection time
   * if the row, column, value, or merging functions return null on any input.
   *
   * @since 21.0
   */
  public static <T extends @Nullable Object, R, C, V>

 {{{http://www.slf4j.org/manual.html#swapping}"SLF4J bindings"}}.

 Logging configuration loading is actually done by logging implementation, without any Maven extensions to support merging
 Maven installation configuration with per-user configuration for example:
 <<<$\{maven.conf}/logging>>> directory was added to core's classpath (see <<<$\{maven.home}/bin/m2.conf>>>). See your implementation

import org.apache.maven.api.model.ReportPlugin;
import org.apache.maven.api.model.Reporting;
import org.apache.maven.model.v4.MavenMerger;

/**
 * As long as Maven controls the BuildPomXMLFilter, the entities that need merging are known.
 * All others can simply be copied from source to target to restore the locationTracker
 *
 * @since 4.0.0
 * @deprecated use {@code org.apache.maven.api.services.ModelBuilder} instead
 */