* specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.repository.internal.util;

import java.io.PrintStream;

import org.eclipse.aether.AbstractRepositoryListener;
import org.eclipse.aether.RepositoryEvent;

public class ConsoleRepositoryListener extends AbstractRepositoryListener {

    private PrintStream out;

    public ConsoleRepositoryListener() {
        this(null);

 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.eventspy.internal;

import org.eclipse.aether.AbstractRepositoryListener;
import org.eclipse.aether.RepositoryEvent;
import org.eclipse.aether.RepositoryListener;

/**
 * Forwards repository events to EventSpies.
 * @since 3.0.2
 */
class EventSpyRepositoryListener extends AbstractRepositoryListener {

import java.util.Iterator;
import java.util.LinkedHashMap;
import java.util.Locale;
import java.util.Map;

import org.eclipse.aether.transfer.TransferCancelledException;
import org.eclipse.aether.transfer.TransferEvent;
import org.eclipse.aether.transfer.TransferResource;

/**
 * Console download progress meter.
 * <p>
 * This listener is not thread-safe and should be wrapped in the {@link SimplexTransferListener} in a multi-threaded scenario.

import org.codehaus.plexus.personality.plexus.lifecycle.phase.Disposable;
import org.eclipse.aether.RepositorySystem;
import org.eclipse.aether.RepositorySystemSession;
import org.eclipse.aether.repository.LocalRepositoryManager;
import org.eclipse.aether.resolution.ArtifactRequest;
import org.eclipse.aether.resolution.ArtifactResult;

/**
 */
@Named
@Singleton
@Deprecated

 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.internal.aether;

import javax.inject.Inject;
import javax.inject.Named;
import javax.inject.Provider;

import org.eclipse.aether.RepositorySystem;
import org.eclipse.sisu.EagerSingleton;
import org.eclipse.sisu.PreDestroy;

import static java.util.Objects.requireNonNull;

/**

import org.apache.maven.project.artifact.ProjectArtifactsCache;
import org.eclipse.aether.graph.Dependency;
import org.eclipse.aether.graph.DependencyFilter;
import org.eclipse.aether.graph.DependencyNode;
import org.eclipse.aether.util.filter.AndDependencyFilter;
import org.eclipse.aether.util.filter.ScopeDependencyFilter;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * <p>

 * under the License.
 */
package org.apache.maven.artifact.resolver.filter;

import org.apache.maven.artifact.Artifact;

/**
 * Filter to only retain objects in the given artifactScope or better.
 *
 */
abstract class AbstractScopeArtifactFilter implements ArtifactFilter {

    private boolean compileScope;

    private boolean runtimeScope;

    private boolean testScope;

            // even before the arguments from the command line are parsed.  Any exception
            // that would happen here should cause the build to fail at a later stage
            // (when actually parsing the POM) and will lead to a better exception being
            // displayed to the user, so just bail out and return false.
        }
        return false;
    }

### Is concurrency better than parallelism? { #is-concurrency-better-than-parallelism }

Nope! That's not the moral of the story.

Concurrency is different than parallelism. And it is better on **specific** scenarios that involve a lot of waiting. Because of that, it generally is a lot better than parallelism for web application development. But not for everything.

    <version>4.1.0-SNAPSHOT</version>
  </parent>

  <artifactId>maven-api</artifactId>
  <packaging>pom</packaging>
  <name>Maven 4 API</name>
  <description>A new immutable API for Maven 4 to better manage what plugins and extensions can influence.</description>

  <modules>
    <module>maven-api-annotations</module>
    <module>maven-api-di</module>
    <module>maven-api-xml</module>