private final String artifactId;

        private final String version;

        private final int hashCode;

        CacheKey(String groupId, String artifactId, String version) {
            this.groupId = (groupId != null) ? groupId : "";
            this.artifactId = (artifactId != null) ? artifactId : "";
            this.version = (version != null) ? version : "";

            int hash = 17;

            this.trace = trace;
            return this;
        }

        public DependencyCoordinatesFactoryRequestBuilder groupId(String groupId) {
            this.groupId = groupId;
            return this;
        }

        public DependencyCoordinatesFactoryRequestBuilder artifactId(String artifactId) {
            this.artifactId = artifactId;

      <artifactId>maven-model</artifactId>
    </dependency>
    <dependency>
      <groupId>org.apache.maven</groupId>
      <artifactId>maven-artifact</artifactId>
    </dependency>
    <dependency>
      <groupId>org.apache.maven</groupId>
      <artifactId>maven-support</artifactId>
    </dependency>
    <dependency>
      <groupId>com.fasterxml.woodstox</groupId>

<project>
  <modelVersion>4.0.0</modelVersion>
  <groupId>maven-t04</groupId>
  <artifactId>p0</artifactId>
  <packaging>pom</packaging>
  <name>p0</name>
  <version>1.0</version>
  <organization>
    <name>Codehaus</name>
  </organization>

  <dependencyManagement>

    <dependencies>

      <dependency>
        <groupId>maven-test</groupId>
        <artifactId>t04-a</artifactId>
        <version>1.0</version>

<project>
  <modelVersion>4.0.0</modelVersion>
  <groupId>maven-t09</groupId>
  <artifactId>p0</artifactId>
  <packaging>pom</packaging>
  <name>p0</name>
  <version>1.0</version>
  <organization>
    <name>Codehaus</name>
  </organization>

  <dependencyManagement>

    <dependencies>

      <dependency>
        <groupId>maven-test</groupId>
        <artifactId>t09-a</artifactId>
        <version>1.0</version>

  <parent>
    <groupId>org.apache.maven</groupId>
    <artifactId>maven</artifactId>
    <version>4.0.0-alpha-1-SNAPSHOT</version>
  </parent>

  <artifactId>maven-model</artifactId>

  <name>Maven Model</name>
  <description>Model for Maven POM (Project Object Model)</description>

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

      <groupId>org.codehaus.plexus</groupId>
      <artifactId>plexus-xml</artifactId>
    </dependency>
    <dependency>
      <groupId>org.codehaus.plexus</groupId>
      <artifactId>plexus-interpolation</artifactId>
    </dependency>
    <dependency>
      <groupId>javax.inject</groupId>
      <artifactId>javax.inject</artifactId>
      <scope>provided</scope>
    </dependency>

    <dependency>

    <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>

  <artifactId>aid</artifactId>
  <groupId>gid</groupId>
  <version>0.1</version>
  <packaging>pom</packaging>

  <build>
    <pluginManagement>
      <plugins>
        <plugin>
          <groupId>test</groupId>
          <artifactId>managed-duplicate</artifactId>
        </plugin>
        <plugin>
          <groupId>test</groupId>
          <artifactId>managed-duplicate</artifactId>

        this.groupId = groupId;
        this.artifactId = artifactId;
        this.repository = repository;
    }

    @Override
    public String getGroupId() {
        return groupId;
    }

    public void setGroupId(String groupId) {
        this.groupId = groupId;
    }

    @Override
    public String getArtifactId() {
        return artifactId;
    }

    public void setArtifactId(String artifactId) {