<parent>
    <groupId>org.apache.maven</groupId>
    <artifactId>maven-api</artifactId>
    <version>4.1.0-SNAPSHOT</version>
  </parent>

  <artifactId>maven-api-xml</artifactId>
  <name>Maven 4 API :: XML</name>
  <description>Maven 4 API - Immutable XML.</description>

  <dependencies>
    <dependency>
      <groupId>org.apache.maven</groupId>
      <artifactId>maven-api-annotations</artifactId>

                return true;
            }

            if (obj instanceof CacheKey that) {
                return Objects.equals(this.artifactId, that.artifactId)
                        && Objects.equals(this.groupId, that.groupId)
                        && Objects.equals(this.version, that.version)
                        && Objects.equals(this.localRepo, that.localRepo)
                        && Objects.equals(this.workspace, that.workspace)

    @Override
    public Artifact createArtifact(String groupId, String artifactId, String version, String scope, String type) {
        return artifactFactory.createArtifact(groupId, artifactId, version, scope, type);
    }

    @Override
    public Artifact createArtifact(String groupId, String artifactId, String version, String packaging) {
        return artifactFactory.createBuildArtifact(groupId, artifactId, version, packaging);
    }

  <modelVersion>4.0.0</modelVersion>
  <parent>
    <groupId>org.apache.maven.validation</groupId>
    <artifactId>parent</artifactId>
    <version>1</version>
  </parent>

  <groupId>org.apache.maven.validation</groupId>
  <artifactId>project</artifactId>
  <version>1.0.0-SNAPSHOT</version>

  <repositories>
    <repository>
      <id>repo</id>

    }

    @Test
    void testMissingGroupId() throws Exception {
        SimpleProblemCollector result = validate("missing-groupId-pom.xml");

        assertViolations(result, 0, 1, 0);

        assertEquals("'groupId' is missing.", result.getErrors().get(0));
    }

    @Test
    void testInvalidCoordinateIds() throws Exception {

    }

    @Override
    public Artifact createArtifact(String groupId, String artifactId, String version, String packaging) {
        return createArtifact(groupId, artifactId, version, null, packaging);
    }

    @Override
    public Artifact createArtifact(String groupId, String artifactId, String version, String scope, String type) {
        return new DefaultArtifact(groupId, artifactId, version, scope, type, null, new TestArtifactHandler(type));

  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>

  <groupId>simple</groupId>
  <artifactId>simple</artifactId>
  <version>1.0-SNAPSHOT</version>
  <packaging>pom</packaging>

  <modelVersion>4.0.0</modelVersion>

  <parent>
    <groupId>inheritance</groupId>
    <artifactId>parent</artifactId>
    <version>11-SNAPSHOT</version>
  </parent>

  <groupId>inheritance</groupId>
  <artifactId>inheritance</artifactId>
  <version>11-SNAPSHOT</version>
  <name>Model urls inheritance test child</name>

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

<plugin>
  <description>plugin-description</description>
  <groupId>org.apache.maven.plugins</groupId>
  <artifactId>maven-jar-plugin</artifactId>
  <version>2.3-SNAPSHOT</version>
  <goalPrefix>jar</goalPrefix>
  <isolatedRealm>false</isolatedRealm>
  <inheritedByDefault>true</inheritedByDefault>

  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>

  <groupId>inheritance</groupId>
  <artifactId>child</artifactId>
  <version>12-SNAPSHOT</version>

  <!-- name is not inherited, but description is -->
  <description>Model inheritance description</description>