* For Java 9 and above, returns the major version (e.g., 11 for Java 11).
     *
     * @return the Java version number, defaults to 8 if version cannot be determined
     */
    public static int getJavaVersion() {
        final String javaVersion = System.getProperty("java.version");
        int version = 8;
        if (javaVersion != null) {
            final String[] split = javaVersion.split("[\\._]");

     */
    public UnresolvableModelException(String message, String groupId, String artifactId, String version) {
        super(message);
        this.groupId = (groupId != null) ? groupId : "";
        this.artifactId = (artifactId != null) ? artifactId : "";
        this.version = (version != null) ? version : "";
    }

    /**
     * Creates a new exception with specified cause

                        <artifactId>parent-project</artifactId>
                        <version>1.0.0</version>
                    </parent>
                    <groupId>com.example.child</groupId>
                    <artifactId>child-project</artifactId>
                    <version>2.0.0</version>
                </project>
                """;

            Document document = Document.of(pomXml);

                session.getRequest().getDegreeOfConcurrency(),
                session.getProjects().size());
        boolean parallel = nThreads > 1;
        // Propagate the parallel flag to the root session and all the cloned sessions in each project segment
        session.setParallel(parallel);
        for (ProjectSegment segment : projectBuilds) {
            segment.getSession().setParallel(parallel);
        }

        <version>1.0</version>
      </dependency>
      <dependency>
        <groupId>maven-test</groupId>
        <artifactId>t05-d</artifactId>
        <version>1.0</version>
      </dependency>
    </dependencies>
  </dependencyManagement>
  <dependencies>
    <dependency>
      <groupId>maven-test</groupId>
      <artifactId>t05-a</artifactId>
      <version>1.0</version>
      <scope>runtime</scope>

<project>
  <parent>
    <artifactId>p0</artifactId>
    <groupId>maven-t07</groupId>
    <version>1.0</version>
  </parent>
  <modelVersion>4.0.0</modelVersion>
  <groupId>maven-t07</groupId>
  <artifactId>p1</artifactId>
  <packaging>pom</packaging>
  <name>p1</name>
  <version>1.0</version>
  <scm>
    <url>scm-url</url>
  </scm>
  <dependencyManagement>
    <dependencies>
      <dependency>

      matrix:
        os: [ windows-latest, macos-latest ]
        python-version: [ "3.14" ]
        include:
          - os: ubuntu-latest
            python-version: "3.9"
            coverage: coverage
          - os: macos-latest
            python-version: "3.10"
            coverage: coverage
          - os: windows-latest
            python-version: "3.12"
            coverage: coverage
          - os: ubuntu-latest

        <version>1.1</version>
      </dependency>
      <dependency>
        <groupId>maven-test</groupId>
        <artifactId>t08-c</artifactId>
        <version>1.0</version>
      </dependency>
      <dependency>
        <groupId>maven-test</groupId>
        <artifactId>t08-d</artifactId>
        <version>1.2</version>
        <scope>test</scope>
        <optional>false</optional>
      </dependency>

                return Artifact.VERSION_FILE_PATTERN.matcher(version).matches();
            }
        }
        return false;
    }

    public static String toSnapshotVersion(String version) {
        notBlank(version, "version can neither be null, empty nor blank");

        int lastHyphen = version.lastIndexOf('-');
        if (lastHyphen > 0) {
            int prevHyphen = version.lastIndexOf('-', lastHyphen - 1);

    public String getVersion() {
        if (version != null) {
            return version;
        } else {
            return artifact.getVersion();
        }
    }

    // Revise these three methods when MRESOLVER-233 is delivered
    @Override
    public Artifact setVersion(String version) {
        String current = getVersion();
        if (current.equals(version) || (version == null && current.isEmpty())) {