if (this == obj) {
            return true;
        }
        if (obj == null) {
            return false;
        }

        if (!ArtifactModelSource.class.equals(obj.getClass())) {
            return false;
        }

        ArtifactModelSource other = (ArtifactModelSource) obj;
        return Objects.equals(artifactId, other.artifactId)
                && Objects.equals(groupId, other.groupId)

import java.util.concurrent.atomic.AtomicReference;

import org.apache.maven.api.model.Dependency;
import org.apache.maven.api.model.Parent;
import org.apache.maven.api.model.Repository;
import org.apache.maven.model.building.ArtifactModelSource;
import org.apache.maven.model.building.ModelSource;
import org.apache.maven.model.resolution.InvalidRepositoryException;
import org.apache.maven.model.resolution.ModelResolver;

import java.util.LinkedHashSet;
import java.util.List;
import java.util.Map;
import java.util.Objects;
import java.util.Properties;

import org.apache.maven.model.Model;
import org.apache.maven.model.building.ArtifactModelSource;
import org.apache.maven.model.building.DefaultModelBuildingRequest;
import org.apache.maven.model.building.ModelBuilder;
import org.apache.maven.model.building.ModelBuildingException;