/*
     * @see junit.framework.TestCase#setUp()
     */
    @BeforeEach
    public void setUp() throws Exception {
        conflictResolver = (ConflictResolver) container.lookup(ConflictResolver.ROLE, roleHint);

        a1 = createArtifact("a", "1.0");
        a2 = createArtifact("a", "2.0");
        b1 = createArtifact("b", "1.0");
    }

isErrorEnabled(); } org/apache/maven/plugin/Mojo$1.class package org.apache.maven.plugin; synchronized class Mojo$1 { } org/apache/maven/plugin/Mojo.class package org.apache.maven.plugin; public abstract interface Mojo { public static final String ROLE; public abstract void execute() throws MojoExecutionExcepti, MojoFailureException; public abstract void setLog(logging.Log); public abstract logging.Log getLog(); static void <clinit>(); } org/apache/maven/plugin/MojoExecutionExcepti.class package...

        <field>
          <name>roles</name>
          <version>3.0.0+</version>
          <description>
            The roles the contributor plays in the project. Each role is described by a
            {@code role} element, the body of which is a role name. This can also be used to
            describe the contribution.
          </description>
          <association>
            <type>String</type>

      <organization>ASF</organization>
      <roles>
        <role>PMC Chair</role>
      </roles>
      <timezone>-5</timezone>
    </developer>
    <developer>
      <id>brett</id>
      <name>Brett Porter</name>
      <email>******@****.***</email>
      <organization>ASF</organization>
      <roles>
        <role>PMC Member</role>
      </roles>
      <timezone>+10</timezone>
    </developer>

    }

    @Deprecated
    public Object lookup(String role) throws ComponentLookupException {
        return container.lookup(role);
    }

    @Deprecated
    public Object lookup(String role, String roleHint) throws ComponentLookupException {
        return container.lookup(role, roleHint);
    }

    @Deprecated
    public List<Object> lookupList(String role) throws ComponentLookupException {

      <!-- see o.a.m.plugin.descriptor.Requirement -->
      <fields>
        <field>
          <name>role</name>
          <required>true</required>
          <version>1.0.0+</version>
          <type>String</type>
          <description></description>
        </field>
        <field xml.tagName="role-hint">
          <name>roleHint</name>
          <version>1.0.0+</version>
          <type>String</type>

        }
    }

    private <T> Collection<T> getExtensionComponents(Collection<MavenProject> projects, Class<T> role) {
        Collection<T> foundComponents = new LinkedHashSet<>();
        foundComponents.addAll(lookup.lookupList(role));
        foundComponents.addAll(getProjectScopedExtensionComponents(projects, role));
        return foundComponents;
    }

 * dependencies transitively</li>
 * </ul>
 *
 */
public interface ArtifactHandler {
    @Deprecated
    String ROLE = ArtifactHandler.class.getName();

    /**
     * Returns the file name extension of the artifact;
     * e.g. "jar", "pom", "xml", etc.
     *
     * @return the file extension
     */
    String getExtension();