projectKeys.add(key);
        }
        return projectKeys;
    }

    private Collection<String> negate(Collection<String> scopes) {
        Collection<String> result = new HashSet<>();
        Collections.addAll(result, "system", "compile", "provided", "runtime", "test");

        for (String scope : scopes) {
            if ("compile".equals(scope)) {
                result.remove("compile");

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

import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.Objects;

import org.apache.maven.api.ArtifactCoordinates;
import org.apache.maven.api.Dependency;
import org.apache.maven.api.Exclusion;
import org.apache.maven.api.Session;

                }
            }
            collect = scopesToCollect == null
                    ? Collections.emptySet()
                    : Collections.unmodifiableSet(new HashSet<>(scopesToCollect));
            resolve = scopesToResolve == null
                    ? Collections.emptySet()
                    : Collections.unmodifiableSet(new HashSet<>(scopesToResolve));
            this.aggregating = aggregating;

 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.api.services;

import java.util.Collection;
import java.util.Collections;

import org.apache.maven.api.ProducedArtifact;
import org.apache.maven.api.Service;
import org.apache.maven.api.Session;
import org.apache.maven.api.annotations.Experimental;

 */
package org.apache.maven.plugin;

import java.util.Collection;

import org.apache.maven.execution.MojoExecutionEvent;
import org.apache.maven.execution.MojoExecutionListener;

class CompoundMojoExecutionListener implements MojoExecutionListener {

    private final Collection<MojoExecutionListener> listeners;

    CompoundMojoExecutionListener(Collection<MojoExecutionListener> listeners) {

        return mainArtifact.flatMap(artifactManager::getPath);
    }

    @Nonnull
    @Override
    public Collection<ProducedArtifact> getAttachedArtifacts(@Nonnull Project project) {
        requireNonNull(project, "project" + " cannot be null");
        Collection<ProducedArtifact> attached =
                map(getMavenProject(project).getAttachedArtifacts(), a -> getSession(project)

                        "Multi module project collection failed:{}"
                                + "Detected a POM file next to a .mvn directory in a parent directory ({}). "
                                + "Maven assumed that POM file to be the parent of the requested project ({}), but it turned "
                                + "out that it was not. Another project collection strategy will be executed as result.",

                session,
                getIgnorableArtifacts(ignorableArtifacts));
    }

    private Set<Artifact> resolveImpl(
            Collection<? extends MavenProject> projects,
            Collection<String> scopesToCollect,
            Collection<String> scopesToResolve,
            MavenSession session,
            Set<String> projectIds)
            throws ArtifactResolutionException, ArtifactNotFoundException {

     * @since 3.5.0
     * @deprecated Use {@link #DefaultProjectDependencyGraph(Collection, Collection)} instead.
     */
    @Deprecated
    public DefaultProjectDependencyGraph(List<MavenProject> allProjects, Collection<MavenProject> projects)
            throws CycleDetectedException, DuplicateProjectException {
        this((Collection<MavenProject>) allProjects, projects);
    }

    /**

import org.eclipse.aether.RequestTrace;
import org.eclipse.aether.artifact.ArtifactType;
import org.eclipse.aether.artifact.ArtifactTypeRegistry;
import org.eclipse.aether.collection.CollectRequest;
import org.eclipse.aether.collection.DependencyCollectionException;
import org.eclipse.aether.graph.DependencyFilter;
import org.eclipse.aether.graph.DependencyNode;
import org.eclipse.aether.resolution.ArtifactResult;