+ "  <groupId>thegroup</groupId>\n"
            + "  <artifactId>base1</artifactId>\n"
            + "  <version>1</version>\n"
            + "  <packaging>pom</packaging>\n"
            + "  <dependencyManagement>\n"
            + "    <dependencies>\n"
            + "      <dependency>\n"
            + "        <groupId>thegroup</groupId>\n"
            + "        <artifactId>base2</artifactId>\n"

  <dependencies>
    <dependency>
      <groupId>com.google.guava</groupId>
      <artifactId>failureaccess</artifactId>
      <version>${failureaccess.version}</version>
    </dependency>
    <dependency>
      <groupId>com.google.guava</groupId>
      <artifactId>listenablefuture</artifactId>
      <version>${listenablefuture.version}</version>
    </dependency>
    <dependency>
      <groupId>org.jspecify</groupId>

<project>
  <modelVersion>4.0.0</modelVersion>
  <groupId>maven-test</groupId>
  <artifactId>scope-provided</artifactId>
  <version>1.0</version>
  <dependencies>

    <dependency>
      <groupId>maven-test-provided</groupId>
      <artifactId>scope-default</artifactId>
      <version>1.0</version>
    </dependency>

    <dependency>
      <groupId>maven-test-provided</groupId>
      <artifactId>scope-test</artifactId>

<project>
  <modelVersion>4.0.0</modelVersion>
  <groupId>maven-test</groupId>
  <artifactId>scope-runtime</artifactId>
  <version>1.0</version>
  <dependencies>

    <dependency>
      <groupId>maven-test-runtime</groupId>
      <artifactId>scope-default</artifactId>
      <version>1.0</version>
    </dependency>

    <dependency>
      <groupId>maven-test-runtime</groupId>
      <artifactId>scope-test</artifactId>

    <modelVersion>4.0.0</modelVersion>

    <groupId>test</groupId>
    <artifactId>test</artifactId>
    <version>0.1-SNAPSHOT</version>

    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>test</groupId>
                <artifactId>other</artifactId>
                <version>0.1-SNAPSHOT</version>

            String version,
            String message) {
        this.artifact = Objects.requireNonNull(artifact, "artifact cannot be null");
        this.groupId = (groupId != null && !groupId.isEmpty()) ? groupId : null;
        this.artifactId = (artifactId != null && !artifactId.isEmpty()) ? artifactId : null;
        this.classifier = (classifier != null && !classifier.isEmpty()) ? classifier : null;

  <modelVersion>4.0.0</modelVersion>

  <parent>
    <groupId>ut.simple</groupId>
    <artifactId>parent</artifactId>
    <version>1.0</version>
  </parent>

  <artifactId>artifact</artifactId>

  <name>Simple Unit Test Artifact</name>

  <dependencies>
    <dependency>
      <groupId>ut.simple</groupId>
      <artifactId>dependency</artifactId>
    </dependency>
    <dependency>

under the License.
-->

<project>
  <modelVersion>4.0.0</modelVersion>
  <artifactId>aid</artifactId>
  <groupId>gid</groupId>
  <version>0.1</version>

  <dependencyManagement>
    <dependencies>
      <dependency>
        <groupId>test</groupId>
        <artifactId>a</artifactId>
        <version>0.1</version>
        <scope>import</scope>
        <!-- missing type=pom -->

under the License.
-->

<project>
  <modelVersion>4.0.0</modelVersion>
  <artifactId>aid</artifactId>
  <groupId>gid</groupId>
  <version>0.1</version>
  <packaging>pom</packaging>

  <build>
    <pluginManagement>
      <plugins>
        <plugin>
          <groupId>build</groupId>
          <artifactId>managed-plugin</artifactId>
          <executions>
            <execution>

    }

    @Override
    public Object get(String groupId, String artifactId, String version, String tag) {
        return cache.get(session, new Key(groupId, artifactId, version, tag));
    }

    @Override
    public void put(String groupId, String artifactId, String version, String tag, Object data) {
        cache.put(session, new Key(groupId, artifactId, version, tag), data);
    }

    static class Key {