// this here, possibly indefinitely.
//
public interface RepositoryCache {

    /**
     * Puts the specified data into the cache. <strong>Warning:</strong> The cache will directly save the provided
     * reference. If the cached data is mutable, i.e. could be modified after being put into the cache, the caller is

import org.apache.maven.project.artifact.InvalidDependencyVersionException;

/**
 * <p>
 * Component interface responsible for creation of MavenProject#dependencyArtifacts instances.
 * </p>
 * <strong>NOTE:</strong> This class is not part of any public api and can be changed or deleted without prior notice.
 *
 * @since 3.2.4
 */
public interface ProjectArtifactFactory {

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

/**
 * Defines events that Maven fires during a build. <strong>Warning:</strong> This interface might be extended in future
 * Maven versions to support further events. Hence it is strongly recommended to derive custom listeners from

 * Encapsulates parameters of MojoExecutionListener callback methods and is meant to provide API evolution path should
 * it become necessary to introduce new parameters in the existing callbacks in the future.
 * </p>
 * <strong>Note:</strong> This class is part of work in progress and can be changed or removed without notice.
 *
 * @see MojoExecutionListener
 * @see org.apache.maven.execution.scope.WeakMojoExecutionListener
 * @since 3.1.2
 */

 * the projects serially, but a {@link Builder} can employ any type of concurrency model to build the projects.
 * </p>
 * <strong>Note:</strong> This interface is part of work in progress and can be changed or removed without notice.
 */
public interface Builder {
    //

import org.eclipse.aether.RepositorySystemSession;
import org.eclipse.aether.graph.DependencyFilter;
import org.eclipse.aether.repository.RemoteRepository;

/**
 * Caches plugin artifacts. <strong>Warning:</strong> This is an internal utility interface that is only public for
 * technical reasons, it is not part of the public API. In particular, this interface can be changed or deleted without
 * prior notice.
 *
 */

import org.apache.maven.project.DependencyResolutionResult;
import org.apache.maven.project.MavenProject;
import org.eclipse.aether.RepositorySystemSession;

/**
 * Caches project artifacts. <strong>Warning:</strong> This is an internal utility interface that is only public for
 * technical reasons, it is not part of the public API. In particular, this interface can be changed or deleted without
 * prior notice.
 *
 */

import org.apache.maven.model.Plugin;
import org.codehaus.plexus.classworlds.realm.ClassRealm;
import org.eclipse.aether.artifact.Artifact;

/**
 * Manages the class realms used by Maven. <strong>Warning:</strong> This is an internal utility interface that is only
 * public for technical reasons, it is not part of the public API. In particular, this interface can be changed or
 * deleted without prior notice.
 *
 */

import org.apache.maven.lifecycle.internal.ProjectSegment;
import org.apache.maven.project.MavenProject;

/**
 * <p>
 * Presents a view of the Dependency Graph that is suited for concurrent building.
 * </p>
 * <strong>NOTE:</strong> This class is not part of any public api and can be changed or deleted without prior notice.
 *
 * @since 3.0
 */
public class ConcurrencyDependencyGraph {

    private final ProjectBuildList projectBuilds;

import org.apache.maven.project.MavenProject;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * <p>
 * Logs debug output from the various lifecycle phases.
 * </p>
 * <strong>NOTE:</strong> This class is not part of any public api and can be changed or deleted without prior notice.
 *
 * @since 3.0
 */
@Named
@Singleton
public class LifecycleDebugLogger {