return Multisets.iteratorImpl(this);
  }

  @GwtIncompatible // java.io.ObjectOutputStream
  private void writeObject(ObjectOutputStream stream) throws IOException {
    stream.defaultWriteObject();
    stream.writeObject(type);
    Serialization.writeMultiset(this, stream);
  }

  /**
   * @serialData the {@code Class<E>} for the enum type, the number of distinct elements, the first

     */
    Metadata read(Reader input, Map<String, ?> options) throws IOException, MetadataParseException;

    /**
     * Reads the metadata from the specified byte stream. The stream will be automatically closed before the method
     * returns.
     *
     * @param input The stream to deserialize the metadata from, must not be {@code null}.
     * @param options The options to use for deserialization, may be {@code null} to use the default values.

     */
    Settings read(Reader input, Map<String, ?> options) throws IOException, SettingsParseException;

    /**
     * Reads the settings from the specified byte stream. The stream will be automatically closed before the method
     * returns.
     *
     * @param input The stream to deserialize the settings from, must not be {@code null}.
     * @param options The options to use for deserialization, may be {@code null} to use the default values.

    /**
     * Reads the toolchains from the specified byte stream. The stream will be automatically closed before the method
     * returns.
     *
     * @param input The stream to deserialize the toolchains from, must not be {@code null}.
     * @param options The options to use for deserialization, may be {@code null} to use the default values.

        }
    }

    /**
     * Method write.
     *
     * @param stream a stream object.
     * @param settings a settings object.
     * @throws IOException java.io.IOException if any.
     */
    public void write(OutputStream stream, Settings settings) throws IOException {
        try {
            delegate.write(stream, settings.getDelegate());
        } catch (XMLStreamException e) {

 */
package org.apache.maven.model.building;

import java.lang.reflect.Method;
import java.lang.reflect.ParameterizedType;
import java.lang.reflect.Type;
import java.util.List;
import java.util.stream.Collectors;
import java.util.stream.Stream;

import org.apache.maven.model.v4.MavenMerger;
import org.junit.jupiter.api.Test;

import static org.junit.jupiter.api.Assertions.assertTrue;

@Deprecated
class FileToRawModelMergerTest {

        }
    }

    /**
     * Retrieve a stream of the project's artifacts
     */
    private Stream<Artifact> getProjectArtifacts(MavenProject project) {
        Stream<org.apache.maven.artifact.Artifact> artifacts = Stream.concat(
                Stream.concat(
                        // pom artifact
                        Stream.of(new ProjectArtifact(project)),

import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Optional;
import java.util.Set;
import java.util.function.Consumer;
import java.util.stream.Collectors;
import java.util.stream.Stream;

import org.apache.maven.plugin.MojoExecution;
import org.apache.maven.project.MavenProject;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * <p>

import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
import java.util.function.BiConsumer;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import java.util.stream.Collectors;
import java.util.stream.Stream;

/**
 * NOTICE: this class is invoked via java command line, so we must NOT DEPEND ON ANY 3RD-PARTY LIBRARIES except JDK 11.
 *

   */
  @GwtIncompatible // java.io.ObjectOutputStream
  private void writeObject(ObjectOutputStream stream) throws IOException {
    stream.defaultWriteObject();
    stream.writeObject(keyTypeOrObjectUnderJ2cl);
    stream.writeObject(valueTypeOrObjectUnderJ2cl);
    Serialization.writeMap(this, stream);
  }

  @SuppressWarnings("unchecked") // reading fields populated by writeObject