public boolean visitEnter( DependencyNode node )
        {
            StringBuilder buffer = new StringBuilder( 128 );
            buffer.append( indent );
            org.eclipse.aether.graph.Dependency dep = node.getDependency();
            if ( dep != null )
            {
                org.eclipse.aether.artifact.Artifact art = dep.getArtifact();

                buffer.append( art );
                if ( StringUtils.isNotEmpty( dep.getScope() ) )
                {
                    buffer.append( ':' ).append( dep.getScope() );
                }

                if ( dep.isOptional() )
                {
                    buffer.append( " (optional)" );
                }

                // TODO We currently cannot tell which <dependencyManagement> section contained the management
                //      information. When the resolver provides this information, these log messages should be updated
                //      to contain it.
                if ( ( node.getManagedBits() & DependencyNode.MANAGED_SCOPE ) == DependencyNode.MANAGED_SCOPE )
                {
                    final String premanagedScope = DependencyManagerUtils.getPremanagedScope( node );
                    buffer.append( " (scope managed from " );
                    buffer.append( StringUtils.defaultString( premanagedScope, "default" ) );
                    buffer.append( ')' );
                }

                if ( ( node.getManagedBits() & DependencyNode.MANAGED_VERSION ) == DependencyNode.MANAGED_VERSION )
                {
                    final String premanagedVersion = DependencyManagerUtils.getPremanagedVersion( node );
                    buffer.append( " (version managed from " );
                    buffer.append( StringUtils.defaultString( premanagedVersion, "default" ) );
                    buffer.append( ')' );
                }

                if ( ( node.getManagedBits() & DependencyNode.MANAGED_OPTIONAL ) == DependencyNode.MANAGED_OPTIONAL )
                {
                    final Boolean premanagedOptional = DependencyManagerUtils.getPremanagedOptional( node );
                    buffer.append( " (optionality managed from " );
                    buffer.append( StringUtils.defaultString( premanagedOptional, "default" ) );
                    buffer.append( ')' );
                }

                if ( ( node.getManagedBits() & DependencyNode.MANAGED_EXCLUSIONS )
                         == DependencyNode.MANAGED_EXCLUSIONS )
                {
                    final Collection<org.eclipse.aether.graph.Exclusion> premanagedExclusions =
                        DependencyManagerUtils.getPremanagedExclusions( node );

                    buffer.append( " (exclusions managed from " );
                    buffer.append( StringUtils.defaultString( premanagedExclusions, "default" ) );
                    buffer.append( ')' );
                }

                if ( ( node.getManagedBits() & DependencyNode.MANAGED_PROPERTIES )
                         == DependencyNode.MANAGED_PROPERTIES )
                {
                    final Map<String, String> premanagedProperties =
                        DependencyManagerUtils.getPremanagedProperties( node );

                    buffer.append( " (properties managed from " );
                    buffer.append( StringUtils.defaultString( premanagedProperties, "default" ) );
                    buffer.append( ')' );
                }
            }

    }

    public <T> void seed( Class<T> clazz, Provider<T> value )
    {
        getScopeState().seeded.put( Key.get( clazz ), value );
    }

    public <T> void seed( Class<T> clazz, final T value )
    {
        getScopeState().seeded.put( Key.get( clazz ), Providers.of( value ) );
    }

    public <T> Provider<T> scope( final Key<T> key, final Provider<T> unscoped )
    {
        return new Provider<T>()
        {
            @SuppressWarnings( "unchecked" )
            public T get()
            {
                LinkedList<ScopeState> stack = values.get();
                if ( stack == null || stack.isEmpty() )
                {
                    throw new OutOfScopeException( "Cannot access " + key + " outside of a scoping block" );
                }

                ScopeState state = stack.getFirst();

                Provider<?> seeded = state.seeded.get( key );

                if ( seeded != null )
                {
                    return (T) seeded.get();
                }

                T provided = (T) state.provided.get( key );
                if ( provided == null && unscoped != null )
                {
                    provided = unscoped.get();
                    state.provided.put( key, provided );
                }

                return provided;
            }
        };
    }

    @SuppressWarnings( { "unchecked" } )
    public static <T> Provider<T> seededKeyProvider()
    {
        return (Provider<T>) SEEDED_KEY_PROVIDER;
    }

    private Artifact createArtifact( String groupId, String artifactId, VersionRange versionRange, String type,
                                     String classifier, String scope, String inheritedScope, boolean optional )
    {
        String desiredScope = Artifact.SCOPE_RUNTIME;

        if ( inheritedScope == null )
        {
            desiredScope = scope;
        }
        else if ( Artifact.SCOPE_TEST.equals( scope ) || Artifact.SCOPE_PROVIDED.equals( scope ) )
        {
            return null;
        }
        else if ( Artifact.SCOPE_COMPILE.equals( scope ) && Artifact.SCOPE_COMPILE.equals( inheritedScope ) )
        {
            // added to retain compile artifactScope. Remove if you want compile inherited as runtime
            desiredScope = Artifact.SCOPE_COMPILE;
        }

        if ( Artifact.SCOPE_TEST.equals( inheritedScope ) )
        {
            desiredScope = Artifact.SCOPE_TEST;
        }

        if ( Artifact.SCOPE_PROVIDED.equals( inheritedScope ) )
        {
            desiredScope = Artifact.SCOPE_PROVIDED;
        }

        if ( Artifact.SCOPE_SYSTEM.equals( scope ) )
        {
            // system scopes come through unchanged...
            desiredScope = Artifact.SCOPE_SYSTEM;
        }

        ArtifactHandler handler = artifactHandlerManager.getArtifactHandler( type );

        return new DefaultArtifact( groupId, artifactId, versionRange, desiredScope, type, classifier, handler,
                                    optional );
    }

    {
        MavenSession session = legacySupport.getSession();

        PluginDescriptor pluginDescriptor;
        try
        {
            pluginDescriptor =
                pluginManager.getPluginDescriptor( plugin, session.getCurrentProject().getRemotePluginRepositories(),
                                                   session.getRepositorySession() );

            pluginManager.setupPluginRealm( pluginDescriptor, session, null, null, null );
        }
        catch ( Exception e )
        {
            throw new PluginManagerException( plugin, e.getMessage(), e );
        }

        ClassLoader oldClassLoader = Thread.currentThread().getContextClassLoader();
        try
        {
            Thread.currentThread().setContextClassLoader( pluginDescriptor.getClassRealm() );

            return container.lookup( role, roleHint );

    }

    private static String format( LocalRepository localRepository, List<RemoteRepository> remoteRepositories )
    {
        String repos = "[";

        if ( localRepository != null )
        {
            repos += localRepository.getId() + " (" + localRepository.getBasedir() + ")";
        }

        if ( remoteRepositories != null && !remoteRepositories.isEmpty() )
        {
            for ( RemoteRepository repository : remoteRepositories )
            {
                repos += ", ";

                if ( repository != null )
                {
                    repos += repository.getId() + " (" + repository.getUrl() + ")";
                }
            }
        }

        repos += "]";

        return repos;
    }

}

                     || Artifact.SCOPE_SYSTEM.equals( a.getScope() ) )
            {
                Dependency dependency = new Dependency();

                dependency.setArtifactId( a.getArtifactId() );
                dependency.setGroupId( a.getGroupId() );
                dependency.setVersion( a.getVersion() );
                dependency.setScope( a.getScope() );
                dependency.setType( a.getType() );
                dependency.setClassifier( a.getClassifier() );

                list.add( dependency );
            }
        }
        return Collections.unmodifiableList( list );
    }

    @Deprecated
    public List<Artifact> getTestArtifacts()

                     || Artifact.SCOPE_SYSTEM.equals( a.getScope() ) )
            {
                Dependency dependency = new Dependency();

                dependency.setArtifactId( a.getArtifactId() );
                dependency.setGroupId( a.getGroupId() );
                dependency.setVersion( a.getVersion() );
                dependency.setScope( a.getScope() );
                dependency.setType( a.getType() );
                dependency.setClassifier( a.getClassifier() );

                list.add( dependency );
            }
        }
        return Collections.unmodifiableList( list );
    }

    @Deprecated
    public List<Artifact> getTestArtifacts()