<artifactId>scope-test</artifactId>
  <version>1.0</version>
  <dependencies>

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

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

        <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>
        <optional>false</optional>
      </dependency>

        SimpleProblemCollector result = validate("bad-plugin-version.xml");

        assertViolations(result, 0, 4, 0);

        assertContains(
                result.getErrors().get(0), "'build.plugins.plugin.version' for test:mip must be a valid version");
        assertContains(
                result.getErrors().get(1), "'build.plugins.plugin.version' for test:rmv must be a valid version");
        assertContains(

          <artifactId>maven-it-plugin-class-loader</artifactId>
          <version>2.1-SNAPSHOT</version>
          <dependencies>
            <dependency>
              <groupId>org.apache.maven.its.mng3906</groupId>
              <artifactId>e</artifactId>
              <version>0.1</version>
            </dependency>
            <dependency>
              <groupId>org.apache.maven.its.mng3906</groupId>

      <artifactId>guava</artifactId>
      <version>${project.version}</version>
    </dependency>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <!-- *not* <scope>test</scope>; <scope>compile</scope> is right so that guava-testlib users get junit transitively. -->
      <version>${junit.version}</version>
    </dependency>
    <dependency>
      <!--

        <groupId>org.apache.maven.its.plugins</groupId>
        <artifactId>maven-it-plugin-class-loader</artifactId>
        <version>2.1-SNAPSHOT</version>
        <dependencies>
          <dependency>
            <groupId>org.apache.maven.its.mng3906</groupId>
            <artifactId>c</artifactId>
            <version>0.1</version>
          </dependency>
          <dependency>
            <groupId>org.apache.maven.its.mng3906</groupId>

     * "[2.2.1,)", i.e. denotes the minimum version required.
     *
     * @param versionRange The version range to match the current Maven runtime against, must not be {@code null}.
     * @return {@code true} if the current Maven runtime matches the specified version range, {@code false} otherwise.
     * @throws IllegalArgumentException If the specified version range is {@code null}, empty or otherwise not a valid

    @Override
    public Object get(String groupId, String artifactId, String version, String tag) {
        return cache.get(session, new Key(groupId, artifactId, version, tag));
    }

    @Override
    public void put(String groupId, String artifactId, String version, String tag, Object data) {
        cache.put(session, new Key(groupId, artifactId, version, tag), data);
    }

    static class Key {

import org.apache.maven.plugin.MavenPluginPrerequisitesChecker;
import org.apache.maven.plugin.descriptor.PluginDescriptor;
import org.eclipse.aether.version.InvalidVersionSpecificationException;
import org.eclipse.aether.version.Version;
import org.eclipse.aether.version.VersionConstraint;
import org.eclipse.aether.version.VersionScheme;

@Named
@Singleton
public class MavenPluginJavaPrerequisiteChecker implements MavenPluginPrerequisitesChecker {

        <artifactId>b</artifactId>
        <version>0.1</version>
      </extension>
      <extension>
        <!-- project extensions should override inherited extension with equal gid:aid -->
        <groupId>org.apache.maven.its.mng3899</groupId>
        <artifactId>a</artifactId>
        <version>0.2</version>
      </extension>
    </extensions>
    <plugins>
      <plugin>