}

        buffer.append("----------").append(LS);

        int size = artifacts.size();

        buffer.append(size).append(" required artifact");

        if (size > 1) {
            buffer.append("s are");
        } else {
            buffer.append(" is");
        }

        buffer.append(" missing.").append(LS).append(LS).append("for artifact: ");

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

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

                if (repository != null) {

            case TRANSFER_STARTED:
                sb.append("STARTED");
                break;
            default:
                sb.append(this.getEventType());
                break;
        }

        sb.append('|');
        sb.append(this.getLocalFile()).append('|');
        sb.append(']');

        return sb.toString();
    }

    public int hashCode() {
        final int prime = 31;

                .append("REQUEST: ")
                .append(LS)
                .append("artifact: ")
                .append(artifact)
                .append(LS)
                .append(artifactDependencies)
                .append(LS)
                .append("localRepository: ")
                .append(localRepository)
                .append(LS)
                .append("remoteRepositories: ")

        if (unit == ScaleUnit.BYTE) {
            builder.append(size);
        } else if (scaledSize < 0.05d || scaledSize >= 10.0d) {
            builder.append(Math.round(scaledSize));
        } else {
            builder.append(Math.round(scaledSize * 10d) / 10d);
        }

        if (!omitSymbol) {
            builder.append(" ").append(unit.symbol());
        }
    }

        StringBuilder hashString = new StringBuilder(128);
        hashString.append(md.groupId).append('|');
        hashString.append(md.artifactId).append('|');

        if (compareVersion) {
            hashString.append(md.version).append('|');
        }

        if (compareScope) {
            hashString.append(md.getArtifactScope()).append('|');
        }

        return hashString.toString().hashCode();

public class MappedList<U, V> extends AbstractList<U> {
    private final List<V> list;
    private final Function<V, U> mapper;

    public MappedList(List<V> list, Function<V, U> mapper) {
        this.list = list;
        this.mapper = mapper;
    }

    @Override
    public U get(int index) {
        return mapper.apply(list.get(index));
    }

    @Override
    public int size() {
        return list.size();
    }

    public String toString() {
        StringBuilder buffer = new StringBuilder(64);
        buffer.append("{enabled=");
        buffer.append(enabled);
        buffer.append(", checksums=");
        buffer.append(checksumPolicy);
        buffer.append(", updates=");
        buffer.append(updatePolicy);
        buffer.append('}');
        return buffer.toString();
    }

        sb.append("]");
        return sb.toString();
    }

    private static <T> boolean addToStringField(StringBuilder sb, T o, Function<T, Boolean> p, String n, boolean w) {
        if (!p.apply(o)) {
            if (w) {
                sb.append(", ");
            } else {
                w = true;
            }
            sb.append(n).append("='").append(o).append('\'');
        }

            buffer.append("'parent.relativePath'");
            if (childModel != problems.getRootModel()) {
                buffer.append(" of POM ").append(ModelProblemUtils.toSourceHint(childModel));
            }
            buffer.append(" points at ").append(groupId).append(':').append(artifactId);
            buffer.append(" instead of ").append(parent.getGroupId()).append(':');