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}.

  <groupId>snapshot-test</groupId>
  <artifactId>maven-test-snapshot-resolving</artifactId>
  <packaging>jar</packaging>
  <repositories>
    <repository>
      <id>central</id>
      <name>Fake Maven Central Repository</name>
      <url>file://dummy</url>
    </repository>
  </repositories>
  <dependencies>
    <dependency>
      <groupId>snapshot-test</groupId>
      <artifactId>maven-snapshot-a</artifactId>

  <groupId>snapshot-test</groupId>
  <artifactId>maven-test-snapshot-resolving</artifactId>
  <packaging>jar</packaging>
  <repositories>
    <repository>
      <id>central</id>
      <name>Fake Maven Central Repository</name>
      <url>file://dummy</url>
    </repository>
  </repositories>
  <dependencies>
    <dependency>
      <groupId>snapshot-test</groupId>
      <artifactId>maven-snapshot-a</artifactId>

      <artifactId>plexus-classworlds</artifactId>
    </dependency>
  </dependencies>
  <reporting>
    <plugins>
      <plugin>
        <artifactId>maven-surefire-report-plugin</artifactId>
      </plugin>
      <plugin>
        <artifactId>maven-pmd-plugin</artifactId>
      </plugin>
      <plugin>
        <artifactId>maven-javadoc-plugin</artifactId>
        <configuration>
          <links>

        <artifactId>maven-it-plugin-log-file</artifactId>
        <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-touch</artifactId>

    <artifactId>p0</artifactId>
    <groupId>maven-t04</groupId>
    <version>1.0</version>
  </parent>
  <modelVersion>4.0.0</modelVersion>
  <groupId>maven-t04</groupId>
  <artifactId>p1</artifactId>
  <packaging>pom</packaging>
  <name>p1</name>
  <version>1.0</version>
  <scm>
    <url>scm-url</url>
  </scm>

  <dependencies>

    <dependency>
      <groupId>maven-test</groupId>

      <artifactId>plexus-component-api</artifactId>
      <version>1.0-alpha-16</version>
    </dependency>
    <dependency>
      <groupId>org.codehaus.plexus</groupId>
      <artifactId>plexus-container-default</artifactId>
      <version>1.0-alpha-16</version>
    </dependency>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>4.13.1</version>

      <artifactId>plexus-component-api</artifactId>
      <version>1.0-alpha-16</version>
    </dependency>
    <dependency>
      <groupId>org.codehaus.plexus</groupId>
      <artifactId>plexus-container-default</artifactId>
      <version>1.0-alpha-16</version>
    </dependency>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>4.13.1</version>

        <groupId>maven-test</groupId>
        <artifactId>t06-b</artifactId>
        <version>1.1</version>
      </dependency>
      <dependency>
        <groupId>maven-test</groupId>
        <artifactId>t06-c</artifactId>
        <version>1.0</version>
      </dependency>
      <dependency>
        <groupId>maven-test</groupId>
        <artifactId>t06-d</artifactId>
        <version>1.2</version>
        <scope>test</scope>

  <parent>
    <artifactId>wagon</artifactId>
    <groupId>org.apache.maven.wagon</groupId>
    <version>1.0-beta-2</version>
  </parent>
  <modelVersion>4.0.0</modelVersion>
  <artifactId>wagon-providers</artifactId>
  <packaging>pom</packaging>
  <name>Maven Wagon Providers Parent</name>
  <modules>
    <module>wagon-file</module>