*
 * @author Shardul Deo
 * @since 4.0
 */
@GwtCompatible
public abstract class ForwardingListenableFuture<V extends @Nullable Object>
    extends ForwardingFuture<V> implements ListenableFuture<V> {

  /** Constructor for use by subclasses. */
  protected ForwardingListenableFuture() {}

  @Override
  protected abstract ListenableFuture<? extends V> delegate();

  @Override

 * under the License.
 */
package org.apache.maven.execution;

/**
 * Provides a skeleton implementation for execution listeners. The methods of this class are empty.
 *
 */
public class AbstractExecutionListener implements ExecutionListener {

    @Override
    public void projectDiscoveryStarted(ExecutionEvent event) {
        // default does nothing
    }

    @Override
    public void sessionStarted(ExecutionEvent event) {

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 {
    private final VersionScheme versionScheme;

    @Inject
    public MavenPluginJavaPrerequisiteChecker(VersionScheme versionScheme) {
        this.versionScheme = versionScheme;

/**
 * A configuration listener to help validate the plugin configuration. For instance, check for required but missing
 * parameters.
 *
 */
class ValidatingConfigurationListener implements ConfigurationListener {
    private final Object mojo;

    private final ConfigurationListener delegate;

    private final Map<String, Parameter> missingParameters;

import org.apache.commons.jxpath.ri.model.NodePointer;
import org.apache.maven.api.xml.XmlNode;

/**
 * An attribute iterator for JXPath to support <code>Xpp3Dom</code>.
 *
 */
class Xpp3DomAttributeIterator implements NodeIterator {

    private NodePointer parent;

    private XmlNode node;

    private List<Map.Entry<String, String>> attributes;

    private Map.Entry<String, String> attribute;

 * </p>
 *
 * @see <a href="https://developers.google.com/search/docs/crawling-indexing/sitemaps/news-sitemap">Google News Sitemaps</a>
 */
public class SitemapNews implements Serializable {

    private static final long serialVersionUID = 1L;

    /**
     * The name of the news publication.
     * It must exactly match the name as it appears on your articles.
     */

 *
 * <p>
 * Subclasses should implement the actual extraction logic in their own
 * methods, leveraging the helper methods provided by this abstract class.
 * </p>
 *
 */
public abstract class AbstractExtractor implements Extractor {

    /** The crawler container. */
    @Resource
    protected CrawlerContainer crawlerContainer;

    /**
     * Constructs a new AbstractExtractor.
     */
    public AbstractExtractor() {

import jcifs.CIFSContext;
import jcifs.CIFSException;
import jcifs.config.PropertyConfiguration;

/**
 * Global singleton context
 *
 * @author mbechler
 *
 */
public class SingletonContext extends BaseContext implements CIFSContext {

    private static final Logger log = LoggerFactory.getLogger(SingletonContext.class);
    private static SingletonContext INSTANCE;

    /**
     * Initialize singleton context using custom properties

      str.append(chars);
      return charactersOf(str);
    }
  }

  private abstract static class TestUnhashableListGenerator
      extends TestUnhashableCollectionGenerator<List<UnhashableObject>>
      implements TestListGenerator<UnhashableObject> {}

  public static class UnhashableElementsImmutableListGenerator extends TestUnhashableListGenerator {
    @Override

## Overview