sb.append(" for ");
                sb.append(modelId);
            }
            for (ModelProblem problem : problems) {
                sb.append(System.lineSeparator());
                sb.append("    - [");
                sb.append(problem.getSeverity());
                sb.append("] ");
                sb.append(problem.getMessage());

    public String toString() {
        StringBuilder sb = new StringBuilder(128);
        sb.append("MavenProject: ");
        sb.append(getGroupId());
        sb.append(':');
        sb.append(getArtifactId());
        sb.append(':');
        sb.append(getVersion());
        if (getFile() != null) {
            sb.append(" @ ");
            sb.append(getFile().getPath());
        }

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

    public String asString() {
        StringBuilder sb = new StringBuilder();

        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

        StringBuilder sb = new StringBuilder(128);
        sb.append(getGroupId());
        sb.append(':');
        appendArtifactTypeClassifierString(sb);
        return sb.toString();
    }

    private void appendArtifactTypeClassifierString(StringBuilder sb) {
        sb.append(getArtifactId());
        sb.append(':');
        sb.append(getType());
        if (hasClassifier()) {

        StringBuilder sb = new StringBuilder(128);
        sb.append("Mirror[");
        sb.append("id=").append(this.getId());
        sb.append(",mirrorOf=").append(this.getMirrorOf());
        sb.append(",url=").append(this.getUrl());
        sb.append(",name=").append(this.getName());
        if (isBlocked()) {
            sb.append(",blocked");
        }
        sb.append("]");
        return sb.toString();

        assertEquals(toString(expectedList), toString(actualList));
    }

    private static String toString(List<String> lines) {
        StringBuilder sb = new StringBuilder();
        for (String line : lines) {
            sb.append(line).append('\n');
        }
        return sb.toString();
    }