this.artifactId = (artifactId != null) ? artifactId : "";
        this.version = (version != null) ? version : "";
    }

    /**
     * Creates a new exception with specified detail message.
     *
     * @param message The detail message, may be {@code null}.
     * @param groupId The group id of the unresolvable model, may be {@code null}.

      <artifactId>maven-model</artifactId>
    </dependency>
    <dependency>
      <groupId>org.apache.maven</groupId>
      <artifactId>maven-model-builder</artifactId>
    </dependency>
    <dependency>
      <groupId>org.apache.maven</groupId>
      <artifactId>maven-settings</artifactId>
    </dependency>
    <dependency>
      <groupId>org.apache.maven</groupId>

        <artifactId>maven-core</artifactId>
        <version>${project.version}</version>
      </dependency>
      <dependency>
        <groupId>org.apache.maven</groupId>
        <artifactId>maven-embedder</artifactId>
        <version>${project.version}</version>
      </dependency>
      <dependency>
        <groupId>org.apache.maven</groupId>
        <artifactId>maven-model</artifactId>

        Map artifactMap = project.getArtifactMap();

        assertNotNull( artifactMap, "artifact-map should not be null." );
        assertEquals( 1, artifactMap.size(), "artifact-map should contain 1 element." );

        Artifact artifact = (Artifact) artifactMap.get( key );

        assertNotNull( artifact, "dependency artifact not found in map." );

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

  <build>
    <plugins>
      <plugin>
        <groupId>org.codehaus.modello</groupId>
        <artifactId>modello-maven-plugin</artifactId>
        <executions>
          <execution>

      </plugin>
      <plugin>
        <artifactId>maven-compiler-plugin</artifactId>
      </plugin>
      <plugin>
        <artifactId>maven-source-plugin</artifactId>
      </plugin>
      <plugin>
        <groupId>org.codehaus.mojo</groupId>
        <artifactId>animal-sniffer-maven-plugin</artifactId>
      </plugin>
      <plugin>
        <artifactId>maven-javadoc-plugin</artifactId>
        <configuration>

    private final String message;

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

        <artifactId>plexus-utils</artifactId>
        <version>1.0.4</version>
      </dependency>
      <dependency>
        <groupId>org.apache.maven.wagon</groupId>
        <artifactId>wagon-provider-api</artifactId>
        <version>1.0-alpha-5</version>
      </dependency>
      <dependency>
        <groupId>org.apache.maven.wagon</groupId>
        <artifactId>wagon-ssh</artifactId>

      </plugin>
      <plugin>
        <artifactId>maven-compiler-plugin</artifactId>
      </plugin>
      <plugin>
        <artifactId>maven-source-plugin</artifactId>
      </plugin>
      <plugin>
        <groupId>org.codehaus.mojo</groupId>
        <artifactId>animal-sniffer-maven-plugin</artifactId>
      </plugin>
      <plugin>
        <artifactId>maven-javadoc-plugin</artifactId>
        <configuration>

			<groupId>org.slf4j</groupId>
			<artifactId>slf4j-api</artifactId>
			<version>1.7.26</version>
			<optional>true</optional>
		</dependency>
		<dependency>
			<groupId>commons-logging</groupId>
			<artifactId>commons-logging</artifactId>
			<version>1.2</version>
			<optional>true</optional>
		</dependency>
		<dependency>
			<groupId>junit</groupId>
			<artifactId>junit</artifactId>
			<version>4.13.2</version>