assertVersionOlder("1.0.0-SNAPSHOT", "1.1-SNAPSHOT");
        assertVersionOlder("1.1-SNAPSHOT", "1.2.0-SNAPSHOT");

        // assertVersionOlder( "1.0-alpha-1-SNAPSHOT", "1.0-SNAPSHOT" );
        assertVersionOlder("1.0-alpha-1-SNAPSHOT", "1.0-alpha-2-SNAPSHOT");
        assertVersionOlder("1.0-alpha-1-SNAPSHOT", "1.0-beta-1-SNAPSHOT");

        assertVersionOlder("1.0-beta-1-SNAPSHOT", "1.0-SNAPSHOT-SNAPSHOT");

        Snapshot snapshot;
        String lastUpdated;

        if (metadata.getVersioning() == null) {
            DateFormat utcDateFormatter = new SimpleDateFormat(DEFAULT_SNAPSHOT_TIMESTAMP_FORMAT);
            utcDateFormatter.setCalendar(new GregorianCalendar());
            utcDateFormatter.setTimeZone(DEFAULT_SNAPSHOT_TIME_ZONE);

            snapshot = Snapshot.newBuilder()

  <artifactId>test2</artifactId>
  <version>1.0-SNAPSHOT</version>

  <build>
     <pluginManagement>
      <plugins>
        <plugin>
          <artifactId>maven-compiler-plugin</artifactId>
          <version>0.1-stub-SNAPSHOT</version>
        </plugin>
        <plugin>
          <artifactId>maven-jar-plugin</artifactId>
          <version>0.1-stub-SNAPSHOT</version>
        </plugin>
        <plugin>

    val key = key(request.url)
    val snapshot: DiskLruCache.Snapshot =
      try {
        cache[key] ?: return null
      } catch (_: IOException) {
        return null // Give up because the cache cannot be read.
      }

    val entry: Entry =
      try {
        Entry(snapshot.getSource(ENTRY_METADATA))
      } catch (_: IOException) {
        snapshot.closeQuietly()
        return null
      }

        <version>2.1-SNAPSHOT</version>
      </plugin>
      <plugin>
        <groupId>org.apache.maven.its.plugins</groupId>
        <artifactId>maven-it-plugin-expression</artifactId>
        <version>2.1-SNAPSHOT</version>
      </plugin>
      <plugin>
        <groupId>org.apache.maven.its.plugins</groupId>
        <artifactId>maven-it-plugin-fork</artifactId>
        <version>2.1-SNAPSHOT</version>
      </plugin>

     */
    void setMetadata(Metadata metadata);

    /**
     * Whether this represents a snapshot.
     *
     * @return if it is a snapshot
     */
    boolean isSnapshot();

    /**
     * Gets the artifact quality this metadata refers to. One of {@link #RELEASE}, {@link #SNAPSHOT} or
     * {@link #RELEASE_OR_SNAPSHOT}.
     *
     * @return The artifact quality this metadata refers to.
     */
    int getNature();

    <url>http://www.apache.org/</url>
  </organization>
  <url>http://www.apache.org/</url>
  <repositories>
    <repository>
      <id>apache.snapshots</id>
      <name>Apache Snapshot Repository</name>
      <url>http://svn.apache.org/maven-snapshot-repository</url>
      <releases>
        <enabled>false</enabled>
      </releases>
    </repository>
  </repositories>
  <distributionManagement>

    <url>http://www.apache.org/</url>
  </organization>
  <url>http://www.apache.org/</url>
  <repositories>
    <repository>
      <id>apache.snapshots</id>
      <name>Apache Snapshot Repository</name>
      <url>http://svn.apache.org/maven-snapshot-repository</url>
      <releases>
        <enabled>false</enabled>
      </releases>
    </repository>
  </repositories>
  <distributionManagement>

    <url>http://www.apache.org/</url>
  </organization>
  <url>http://www.apache.org/</url>
  <repositories>
    <repository>
      <id>apache.snapshots</id>
      <name>Apache Snapshot Repository</name>
      <url>http://people.apache.org/repo/m2-snapshot-repository</url>
      <releases>
        <enabled>false</enabled>
      </releases>
    </repository>
  </repositories>
  <distributionManagement>

/**
 * Maven remote GAV level metadata generator.
 * <p>
 * Remote snapshot metadata converts artifact on-the-fly to use timestamped snapshot version, and enlist it accordingly.
 */
class RemoteSnapshotMetadataGenerator implements MetadataGenerator {

    private final Map<Object, RemoteSnapshotMetadata> snapshots;

    private final Date timestamp;

    private final Integer buildNumber;