* is thrown so this information is merely meant to assist the user.
     *
     * @return The identifier of the project or an empty string if not known, never {@code null}.
     */
    String getProjectId();

    /**
     * Gets the POM file from which the project was built.
     *
     * @return The POM file or {@code null} if unknown.
     */
    File getPomFile();

     */
    String DEFAULT_SELF_COMBINATION_MODE = SELF_COMBINATION_MERGE;

    @Nonnull
    String getName();

    @Nonnull
    String getNamespaceUri();

    @Nonnull
    String getPrefix();

    @Nullable
    String getValue();

    @Nonnull
    Map<String, String> getAttributes();

    @Nullable
    String getAttribute(@Nonnull String name);

    @Nonnull

/**
 * An exception thrown during the reading of an xml file.
 *
 * @since 4.0.0
 */
@Experimental
public class XmlReaderException extends MavenException {

    private final Location location;

    /**
     * @param message the message for the exception
     * @param e the exception itself
     */
    public XmlReaderException(String message, Location location, Exception e) {

 */
package org.apache.maven.api;

import java.util.Optional;

import org.apache.maven.api.annotations.Experimental;
import org.apache.maven.api.annotations.Nonnull;

/**
 * Event sent by maven during various phases of the build process.
 * Such events can be listened to using {@link Listener}s objects
 * registered in the {@link Session}.
 *
 * @since 4.0.0
 */
@Experimental
public interface Event {

                builder.distributionManagement(dist.withSite(site.withUrl(normalize(site.getUrl()))));
            }
        }

        return builder.build();
    }

    private String normalize(String url) {
        return urlNormalizer.normalize(url);
    }

/**
 * Instances of this interface retrieve and store data for the --resume / -r feature. This data is used to ensure newer
 * builds of the same project, that have the -r command-line flag, skip successfully built projects during earlier
 * invocations of Maven.
 */
public interface BuildResumptionDataRepository {
    /**
     * Persists any data needed to resume the build at a later point in time, using a new Maven invocation. This method

     */
    public MojoException(Object source, String shortMessage, String longMessage) {
        super(shortMessage);
        this.source = source;
        this.longMessage = longMessage;
    }

    /**
     * Construct a new <code>MojoExecutionException</code> exception wrapping an underlying <code>Throwable</code>
     * and providing a <code>message</code>.
     */
    public MojoException(String message, Throwable cause) {

            <phase>initialize</phase>
            <goals>
              <goal>reset</goal>
            </goals>
            <configuration>
              <logFile>target/exec.log</logFile>
              <string>test</string>
            </configuration>
          </execution>
        </executions>
      </plugin>
    </plugins>
  </build>

  <reporting>
    <plugins>
      <plugin>

            MavenExecutionRequest request, List<MavenProject> projects, Set<String> projectSelectors) {
        Set<MavenProject> resolvedOptionalProjects = new LinkedHashSet<>();
        Set<String> unresolvedOptionalSelectors = new HashSet<>();
        File baseDirectory = getBaseDirectoryFromRequest(request);
        for (String selector : projectSelectors) {
            Optional<MavenProject> optSelectedProject =

          <version>1.0.0+</version>
          <description>Name of the plugin.</description>
          <type>String</type>
        </field>
        <field>
          <name>description</name>
          <version>1.0.0+</version>
          <description>Description of the plugin.</description>
          <type>String</type>
        </field>
        <field>
          <name>groupId</name>
          <version>1.0.0+</version>