sb.append(" -Dversion=");
            sb.append(version);

            // insert classifier only if it was used in the artifact
            if (classifier != null && !classifier.isEmpty()) {
                sb.append(" -Dclassifier=");
                sb.append(classifier);
            }
            sb.append(" -Dpackaging=");
            sb.append(type);

        this.scope = scope;

        this.type = type;

        if (classifier == null) {
            classifier = artifactHandler.getClassifier();
        }

        this.classifier = classifier;

        this.optional = optional;

        validateIdentity();
    }

    private void validateIdentity() {
        if (empty(groupId)) {
            throw new InvalidArtifactRTException(

      <artifactId>guava-testlib</artifactId>
      <version>${project.version}</version>
      <classifier>tests</classifier>
      <scope>test</scope>
    </dependency>
    <dependency>
      <groupId>com.google.guava</groupId>
      <artifactId>guava-tests</artifactId>
      <version>${project.version}</version>
      <classifier>tests</classifier>
      <scope>test</scope>
    </dependency>
    <dependency>

            this.version = version;
            return this;
        }

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

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

     * @param artifactId the artifact identifier, or {@code null} is unspecified
     * @param version the artifact version, or {@code null} is unspecified
     * @param classifier the artifact classifier, or {@code null} is unspecified
     * @param extension the artifact extension, or {@code null} is unspecified
     * @param type the artifact type, or {@code null} is unspecified

      <fields>
        <field>
          <name>classifier</name>
          <version>1.1.0+</version>
          <type>String</type>
          <description>The classifier of the sub-artifact. Each classifier and extension pair may only appear once.</description>
          <defaultValue></defaultValue>
          <identifier>true</identifier>

    }

    @Override
    public Artifact createArtifactWithClassifier(
            String groupId, String artifactId, String version, String type, String classifier) {
        return new DefaultArtifact(groupId, artifactId, version, null, type, classifier, new TestArtifactHandler(type));
    }

    @Override
    public ArtifactRepository createDefaultLocalRepository() throws InvalidRepositoryException {

      <artifactId>org.eclipse.sisu.inject</artifactId>
    </dependency>
    <dependency>
      <groupId>com.google.inject</groupId>
      <artifactId>guice</artifactId>
      <classifier>classes</classifier>
    </dependency>
    <dependency>
      <groupId>org.ow2.asm</groupId>
      <artifactId>asm</artifactId>
    </dependency>
  </dependencies>

  <pluginRepositories>

                "sample.group",
                "sample-art",
                VersionRange.createFromVersion("1.0"),
                "scope",
                "jar",
                "classifier",
                null);
        artifact.setFile(getTestFile("target/sample-art"));

        StringWagon wagon = (StringWagon) wagonManager.getWagon("string");

        wagon.clearExpectedContent();

    }

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

    @Override
    public Artifact createProjectArtifact(String groupId, String artifactId, String metaVersionId) {