}

        public boolean storedInGroupDirectory() {
            return metadata.getArtifactId().isEmpty();
        }

        public String getGroupId() {
            return nullify(metadata.getGroupId());
        }

        public String getArtifactId() {
            return nullify(metadata.getArtifactId());
        }

        public String getBaseVersion() {

        source.setGroupId( "SOURCE" );

        modelMerger.merge( target, source, true, null );
        assertThat( target.getGroupId(), is( "SOURCE" ) );

        target.setGroupId( "TARGET" );
        modelMerger.merge( target, source, false, null );
        assertThat( target.getGroupId(), is( "TARGET" ) );
    }

    @Test
    public void mergeInceptionYear()
    {
        Model target = new Model();

                            artifact.getVersion().contains(",") ? parseVersionRange(artifact.getVersion()) : null;
                    Predicate<Artifact> predicate = a -> {
                        if (artifact.getGroupId().equals(a.getGroupId())
                                && artifact.getArtifactId().equals(a.getArtifactId())) {
                            if (versionRange != null) {

                    artifact = artifactFactory.createArtifact(
                            d.getGroupId(), d.getArtifactId(), d.getVersion(), d.getScope(), d.getType());
                } else {
                    artifact = artifactFactory.createDependencyArtifact(
                            d.getGroupId(),
                            d.getArtifactId(),
                            versionRange,

                        .filter(Objects::nonNull)
                        .map(Node::getDependency)
                        .filter(Objects::nonNull)
                        .collect(Collectors.toMap(d -> d.getGroupId() + ":" + d.getArtifactId(), d -> d)));
            }
        };
    }

    @Override
    public PluginExecution getModel() {
        return delegate.getPlugin().getExecutions().stream()

                && java.util.Objects.equals(e.getGroupId(), getGroupId())
                && java.util.Objects.equals(e.getVersion(), getVersion());
        }
    }

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

                    // 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(),

        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;
    }

    }

    /**
     * Gets the group id of the unresolvable model.
     *
     * @return The group id of the unresolvable model, can be empty but never {@code null}.
     */
    public String getGroupId() {
        return groupId;
    }

    /**
     * Gets the artifact id of the unresolvable model.
     *
     * @return The artifact id of the unresolvable model, can be empty but never {@code null}.

                    e);
            return null;
        }

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