.append(":")
                .append(dependency.getVersion())
                .append("@")
                .append(dependency.getScope() == null ? "compile" : dependency.getScope());
        if (dependency.isOptional()) {
            stringBuilder.append("[optional]");
        }
        if (!dependency.getExclusions().isEmpty()) {
            stringBuilder.append("[").append(dependency.getExclusions().size()).append(" exclusions]");

            for (ModelProblem problem : problems) {
                sb.append(System.lineSeparator());
                sb.append("    - [");
                sb.append(problem.getSeverity());
                sb.append("] ");
                sb.append(problem.getMessage());
                String loc = Stream.of(
                                problem.getModelId().equals(modelId) ? problem.getModelId() : "",

        path.append(artifact.getGroupId()).append('/');

        path.append(artifact.getExtension()).append("s/");

        path.append(artifact.getArtifactId()).append('-').append(artifact.getVersion());

        if (!artifact.getClassifier().isEmpty()) {
            path.append('-').append(artifact.getClassifier());
        }

        path.append('.').append(artifact.getExtension());

        }
        return buffer.toString();
    }

    @Override
    public String toString() {
        StringBuilder buffer = new StringBuilder(128);
        buffer.append('[').append(severity).append("]");
        String msg = message != null ? message : exception != null ? exception.getMessage() : null;
        if (msg != null && !msg.isEmpty()) {
            buffer.append(" ").append(msg);
        }

        StringBuilder buffer = new StringBuilder(256);

        buffer.append(LS).append("Repository Metadata").append(LS).append("--------------------------");
        buffer.append(LS).append("GroupId: ").append(getGroupId());
        buffer.append(LS).append("ArtifactId: ").append(getArtifactId());
        buffer.append(LS).append("Metadata Type: ").append(getClass().getName());

        return buffer.toString();
    }

            if (groupId != null) {
                sb.append(groupId);
            }
            sb.append(":");
            if (artifactId != null) {
                sb.append(artifactId);
            }
            sb.append(":");
            if (version != null) {
                sb.append(version);
            }
            return sb.toString();
        }

        DependencyNode node = getDependencyNode();
        Artifact artifact = node.getArtifact();
        sb.append(artifact);

        Dependency dependency = node.getDependency();
        if (dependency != null) {
            sb.append(":").append(dependency.getScope());
        }

        return sb.toString();
    }

    @Override
    public String toString() {

                buffer.append(", ");
            }
            buffer.append("line ").append(problem.getLineNumber());
        }

        if (problem.getColumnNumber() > 0) {
            if (!buffer.isEmpty()) {
                buffer.append(", ");
            }
            buffer.append("column ").append(problem.getColumnNumber());
        }

        return buffer.toString();
    }

        if (included) {
            buffer.append(nodeString);
            if (!details.isEmpty()) {
                buffer.append(" (");
                join(buffer, details, "; ");
                buffer.append(")");
            }
        } else {
            buffer.append("(");
            buffer.append(nodeString);
            if (!details.isEmpty()) {
                buffer.append(" - ");

    }

    @Override
    public MessageBuilder append(CharSequence cs) {
        buffer.append(cs);
        return this;
    }

    @Override
    public MessageBuilder append(CharSequence cs, int start, int end) {
        buffer.append(cs, start, end);
        return this;
    }

    @Override
    public MessageBuilder append(char c) {
        buffer.append(c);
        return this;
    }

    @Override