<plugin>
          <groupId>org.apache.maven.plugins</groupId>
          <artifactId>maven-compiler-plugin</artifactId>
          <version>0.1</version>
        </plugin>
        <plugin>
          <groupId>org.apache.maven.plugins</groupId>
          <artifactId>maven-deploy-plugin</artifactId>
          <version>0.1</version>
        </plugin>
        <plugin>
          <groupId>org.apache.maven.plugins</groupId>

-->

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

  <dependencies>
    <dependency>
      <groupId>test</groupId>
      <artifactId>a</artifactId>
      <version>0.2</version>
    </dependency>
    <dependency>
      <groupId>test</groupId>
      <artifactId>b</artifactId>
      <version>0.2</version>
      <scope>compile</scope>

<project>
  <modelVersion>4.0.0</modelVersion>
  <artifactId>foo</artifactId>
  <groupId>foo</groupId>
  <version>99.44</version>
  <packaging>jar</packaging>

  <dependencies>
    <dependency>
      <groupId>gid</groupId>
      <artifactId>aid</artifactId>
      <version>1.0</version>
      <exclusions>
        <exclusion>
          <groupId>test?</groupId>
          <artifactId>*</artifactId>
        </exclusion>

<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>0.2</version>
      </dependency>
      <dependency>
        <groupId>test</groupId>
        <artifactId>b</artifactId>
        <version>0.2</version>

  <dependencies>
    <dependency>
      <groupId>org.apache.maven</groupId>
      <artifactId>maven-api-annotations</artifactId>
    </dependency>
    <dependency>
      <groupId>org.apache.maven</groupId>
      <artifactId>maven-api-metadata</artifactId>
    </dependency>
    <dependency>
      <groupId>org.apache.maven</groupId>
      <artifactId>maven-support</artifactId>
    </dependency>

    @Override
    public String toString() {
        return groupId + ":" + artifactId + ":" + version;
    }

    public String toDomainString() {
        return groupId + ":" + artifactId;
    }

    public String getGroupId() {
        return groupId;
    }

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

    public String getArtifactId() {

<project>
  <modelVersion>4.0.0</modelVersion>
  <groupId>maven</groupId>
  <artifactId>maven-project-test</artifactId>
  <name>Maven</name>
  <version>1.0-beta-9</version>
  <dependencies>

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

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

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

  <dependencies>
    <dependency>
      <groupId>test</groupId>
      <artifactId>a</artifactId>
      <version>0.2</version>
      <scope>system</scope>
      <systemPath>should-use-variables-and-not-hard-code-this-path</systemPath>
    </dependency>
    <dependency>
      <groupId>test</groupId>
      <artifactId>b</artifactId>

public class PluginVersionNotFoundException extends Exception {
    private final String groupId;

    private final String artifactId;

    public PluginVersionNotFoundException(String groupId, String artifactId) {
        super("The plugin '" + groupId + ":" + artifactId + "' does not exist or no valid version could be found");

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

    public String getGroupId() {

    public Artifact createArtifact(String groupId, String artifactId, String version, String scope, String type) {
        return createArtifact(groupId, artifactId, version, scope, type, null, null);
    }

    @Override
    public Artifact createArtifactWithClassifier(
            String groupId, String artifactId, String version, String type, String classifier) {
        return createArtifact(groupId, artifactId, version, null, type, classifier, null);