private static final String BASE1_ID = "thegroup:base1:pom";
    private static final String BASE1_ID2 = "thegroup:base1:1";

    private static final String BASE1 = "<project>\n" + "  <modelVersion>4.0.0</modelVersion>\n"
            + "  <groupId>thegroup</groupId>\n"
            + "  <artifactId>base1</artifactId>\n"
            + "  <version>1</version>\n"
            + "  <packaging>pom</packaging>\n"
            + "  <dependencyManagement>\n"

        file("build/distributions/hello-world-1.0-sources.jar").exists()
        file("build/distributions/hello-world-1.0.pom").exists()
        assertXmlEquals(file("build/distributions/hello-world-1.0.pom").text, """
            <project xmlns="http://maven.apache.org/POM/4.0.0" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">

            Map<Path, Document> pomMap = new HashMap<>();
            pomMap.put(Paths.get("project", "pom.xml"), parentDoc);
            pomMap.put(Paths.get("project", "module-a", "pom.xml"), moduleADoc);
            pomMap.put(Paths.get("project", "module-b", "pom.xml"), moduleBDoc);

            Editor editor = new Editor(moduleBDoc);
            Element moduleBRoot = editor.root();

 * </ul>
 * <p>
 * <b>Mixin Handling</b>: Mixins are only supported in model version 4.2.0 or later. If a POM contains mixins:
 * <ul>
 *   <li>Setting {@code preserve.model.version=true} preserves them in the consumer POM with model version 4.2.0</li>
 *   <li>Setting {@code maven.consumer.pom.flatten=true} removes them during transformation</li>

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

<paramdoc xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 ../../../../../../../maven-plugin-parameter-documenter/target/generated-site/xsd/paramdoc-1.0.0.xsd ">
<expressions>
  <expression>

     * Creates a new model source backed by the specified string.
     *
     * @param pom The POM's string representation, may be empty or {@code null}.
     */
    public StringModelSource(CharSequence pom) {
        this(pom, null);
    }

    /**
     * Creates a new model source backed by the specified string.
     *
     * @param pom The POM's string representation, may be empty or {@code null}.

    /**
     * Gets the POM file of the project to build.
     *
     * @return The POM file of the project or {@code null} if not applicable (i.e. when processing a POM from the
     *         repository).
     */
    File getPomFile();

    /**
     * Sets the POM file of the project to build. Note that providing the path to a POM file via this method will make

     * the project directory will not be considered when locating the POM file. The return value will be an absolute
     * path if the project directory is given as an absolute path.
     *
     * @param projectDirectory The (possibly non-existent) base directory to locate the POM file in, must not be {@code
     *            null}.
     * @return The path to the (possibly non-existent) POM file, never {@code null}.
     */

 * create a new entry if the license is genuinely new.
 *
 * ## Adding a dependency whose POM has no license data
 *
 * If the task fails with "no license data in their POM or any parent POM", add a hardcoded
 * entry to the `hardcodedLicenses` map in `GenerateLicenseFile.kt`.
 */
enum class License(
    val displayName: String,
    val url: String,
    val aliases: List<String> = emptyList(),
) {
    Apache2(

            UpgradeContext context = createMockContext();
            UpgradeResult result = strategy.doApply(context, pomMap);

            // Strategy should handle malformed POMs gracefully
            assertNotNull(result, "Result should not be null");
            assertTrue(result.processedPoms().contains(Paths.get("pom.xml")), "POM should be marked as processed");
        }