</parameter>
      </parameters>

- we need to know what came from the POM, and validate those
- plugin in any default values
- check to see if anything is missing

KIND, either express or implied.  See the License for the
specific language governing permissions and limitations
under the License.
-->

<model>
  <id>supplementalModel</id>
  <name>SupplementalDataModel</name>
  <description>Provides access to supplemental POM data models.</description>
  <defaults>
    <default>
      <key>package</key>
      <value>org.apache.maven.plugin.resources.remote</value>
    </default>

     * @return The raw model or {@code null} if the specified model id does not refer to a known model.
     */
    Model getRawModel(String modelId);

    /**
     * Gets the profiles from the specified model that were active during model building. The model identifier should be
     * from the collection obtained by {@link #getModelIds()}. As a special case, an empty string can be used as the

     *
     * @param modelId The identifier of the desired raw model, must not be {@code null}.
     * @return The raw model or {@code null} if the specified model id does not refer to a known model.
     */
    @Nonnull
    Optional<Model> getRawModel(@Nonnull String modelId);

    /**
     * Gets the profiles from the specified model that were active during model building. The model identifier should be

under the License.
-->

<project>
    <!-- once we move past supporting modelVersion 4.0.0 we should update this version -->
    <modelVersion>3.9.9</modelVersion>
    <groupId>tests.project</groupId>
    <artifactId>past-model-version</artifactId>
    <version>1</version>

specific language governing permissions and limitations
under the License.
-->

<project>
    <modelVersion>4.9.1</modelVersion>
    <groupId>tests.project</groupId>
    <artifactId>future-model-version</artifactId>
    <version>1</version>

specific language governing permissions and limitations
under the License.
-->

<model>
  <groupId>foo</groupId>
  <artifactId>bar</artifactId>
  <name>Babar</name>
  <version>4.5</version>

  <!-- Build element should be inherited from the super model -->

org.apache.maven.model.root.DefaultRootLocator...

under the License.
-->

<project>
    <modelVersion>4.999.999</modelVersion>
    <!-- this should be a fake "future" version that only has modelVersion understood by us -->
    <coordinates>tests.project:future-model-version</coordinates>

                options.put("xml:" + version, "xml:" + version);

                String modelId = "org.apache.maven:maven-model-builder:" + version + "-"
                        + this.getClass().getPackage().getImplementationVersion() + ":super-pom";
                InputSource inputSource = new InputSource(
                        modelId, getClass().getResource(resource).toExternalForm());