return null;
        }

        return artifactFactory.createExtensionArtifact(groupId, artifactId, versionRange);
    }

    public Artifact createParentArtifact(String groupId, String artifactId, String version) {
        return artifactFactory.createParentArtifact(groupId, artifactId, version);
    }

    public Artifact createPluginArtifact(Plugin plugin) {
        String version = plugin.getVersion();

            return null;
        }

        return createExtensionArtifactX(groupId, artifactId, versionRange);
    }

    // DefaultProjectBuilder
    public Artifact createParentArtifact(String groupId, String artifactId, String version) {
        return createParentArtifactX(groupId, artifactId, version);
    }

    // DefaultProjectBuilder