public String toString() {
        return groupId + ":" + artifactId + ":" + version;
    }

    public String toDomainString() {
        return groupId + ":" + artifactId;
    }

    public String getGroupId() {
        return groupId;
    }

    public void setGroupId(String groupId) {
        this.groupId = groupId;
    }

    public String getArtifactId() {
        return artifactId;
    }

                    // fill in domain md with actual version data
                    ArtifactMetadata md = v.getMd();
                    ArtifactMetadata newMd = new ArtifactMetadata(
                            md.getGroupId(),
                            md.getArtifactId(),
                            edge.getVersion(),
                            md.getType(),
                            md.getScopeAsEnum(),

                    e);
            return null;
        }

        Artifact artifact = artifactFactory.createDependencyArtifact(
                d.getGroupId(),
                d.getArtifactId(),
                versionRange,
                d.getType(),
                d.getClassifier(),
                d.getScope(),
                d.isOptional());

        for (Artifact a : project.getArtifacts()) {
            System.out.println(a.toString());
            if (artifactId.equals(a.getArtifactId()) && a.getGroupId().equals(groupId)) {
                System.out.println("RETURN");
                return a;
            }
        }
        System.out.println("Return null");
        return null;
    }

                && java.util.Objects.equals(e.getGroupId(), getGroupId())
                && java.util.Objects.equals(e.getVersion(), getVersion());
        } else {
            return false;
        }
    }

    /**
     * @see java.lang.Object#hashCode()
     */
    public int hashCode() {
        return java.util.Objects.hash(getArtifactId(), getGroupId(), getVersion());
    }
            ]]>

 * @see org.apache.maven.api.services.ProjectBuilder
 */
@Experimental
public interface Project {

    /**
     * {@return the project groupId}.
     */
    @Nonnull
    String getGroupId();

    /**
     * {@return the project artifactId}.
     */
    @Nonnull
    String getArtifactId();

    /**
     * {@return the project version}.
     */
    @Nonnull
    String getVersion();