.collect(Collectors.toList());
    }

    @Override
    public ChecksumAlgorithm select(String algorithmName) {
        nonNull(algorithmName, "algorithmName");
        try {
            return new DefaultChecksumAlgorithm(checksumAlgorithmFactorySelector.select(algorithmName));
        } catch (IllegalArgumentException e) {

public class DefaultGraphConflictResolutionPolicy implements GraphConflictResolutionPolicy {
    /**
     * artifact, closer to the entry point, is selected
     */
    @Configuration(name = "closer-first", value = "true")
    private boolean closerFirst = true;

    /**
     * newer artifact is selected
     */
    @Configuration(name = "newer-first", value = "true")
    private boolean newerFirst = true;

    /**
     * this event means that the artifactScope has NOT been updated to a farther node artifactScope because current
     * node is in the first level pom
     */
    int UPDATE_SCOPE_CURRENT_POM = 9;

    int SELECT_VERSION_FROM_RANGE = 10;

    int RESTRICT_RANGE = 11;

    int MANAGE_ARTIFACT_VERSION = 12;

    int MANAGE_ARTIFACT_SCOPE = 13;

    int MANAGE_ARTIFACT_SYSTEM_PATH = 14;

import org.eclipse.aether.RepositorySystemSession;
import org.eclipse.aether.artifact.Artifact;
import org.eclipse.aether.graph.Dependency;
import org.eclipse.aether.resolution.ArtifactDescriptorResult;

/**
 * Detects mixed Maven versions in plugins.
 *
 * @since 3.9.2
 */
@Singleton
@Named
class MavenMixedDependenciesValidator extends AbstractMavenPluginDependenciesValidator {

    @Inject

import org.eclipse.aether.repository.LocalRepository;
import org.eclipse.aether.util.graph.manager.ClassicDependencyManager;
import org.eclipse.aether.util.graph.selector.AndDependencySelector;
import org.eclipse.aether.util.graph.selector.ExclusionDependencySelector;
import org.eclipse.aether.util.graph.transformer.ChainedDependencyGraphTransformer;
import org.eclipse.aether.util.graph.transformer.ConflictResolver;

    Model getEffectiveModel();

    /**
     * Gets the specified raw model as it was read from a model source. Apart from basic validation, a raw model has not
     * undergone any updates by the model builder, e.g. reflects neither inheritance nor interpolation. The model
     * identifier should be from the collection obtained by {@link #getModelIds()}. As a special case, an empty string
     * can be used as the identifier for the super POM.
     *

    }

    public void endProcessChildren(Artifact artifact) {
        indent = indent.substring(2);
    }

    public void includeArtifact(Artifact artifact) {
        logger.debug(indent + artifact + " (selected for " + artifact.getScope() + ")");
    }

    public void omitForNearer(Artifact omitted, Artifact kept) {
        String omittedVersion = omitted.getVersion();
        String keptVersion = kept.getVersion();

    COVERED SOFTWARE IS PROVIDED UNDER THIS LICENSE ON AN "AS IS" BASIS,
    WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED,
    INCLUDING, WITHOUT LIMITATION, WARRANTIES THAT THE COVERED SOFTWARE
    IS FREE OF DEFECTS, MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE OR
    NON-INFRINGING. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF
    THE COVERED SOFTWARE IS WITH YOU. SHOULD ANY COVERED SOFTWARE PROVE

static final int OMIT_FOR_NEARER = 5; public static final int UPDATE_SCOPE = 6; public static final int MANAGE_ARTIFACT = 7; public static final int OMIT_FOR_CYCLE = 8; public static final int UPDATE_SCOPE_CURRENT_POM = 9; public static final int SELECT_VERSION_FROM_RANGE = 10; public static final int RESTRICT_RANGE = 11; public static final int MANAGE_ARTIFACT_VERSION = 12; public static final int MANAGE_ARTIFACT_SCOPE = 13; public abstract void testArtifact(org.apache.maven.artifact.Artifact);...

import org.apache.maven.plugin.PluginValidationManager;
import org.eclipse.aether.RepositorySystemSession;
import org.eclipse.aether.artifact.Artifact;
import org.eclipse.aether.resolution.ArtifactDescriptorResult;

/**
 * Detects Plexus Container Default in plugins.
 *
 * @since 3.9.2
 */
@Singleton
@Named
class PlexusContainerDefaultDependenciesValidator extends AbstractMavenPluginDependenciesValidator {

    @Inject