this(time, properties != null ? properties.getProperty(BUILD_TIMESTAMP_FORMAT_PROPERTY) : null);
    }

    public MavenBuildTimestamp(Date time, String timestampFormat) {
        if (timestampFormat == null) {
            timestampFormat = DEFAULT_BUILD_TIMESTAMP_FORMAT;
        }
        if (time == null) {
            time = new Date();
        }

        this.servers = (servers != null) ? servers : new ArrayList<>();
        this.proxies = (proxies != null) ? proxies : new ArrayList<>();
        this.problems = (problems != null) ? problems : new ArrayList<>();
    }

    @Override
    public Server getServer() {
        return servers.isEmpty() ? null : servers.get(0);
    }

    @Override
    public List<Server> getServers() {

                artifacts, projectArtifact.artifact, null, null, null, source, filter, Collections.emptyList(), null);
    }

    private ArtifactResolutionResult collect(ArtifactSpec a) throws ArtifactResolutionException {
        return artifactCollector.collect(
                Collections.singleton(a.artifact),
                projectArtifact.artifact,
                null,
                null,
                null,

        Element profilesElement = root.child(PROFILES).orElse(null);
        if (profilesElement != null) {
            var profileElements = profilesElement.children(PROFILE).toList();
            for (Element profileElement : profileElements) {
                Element profileModulesElement = profileElement.child(MODULES).orElse(null);
                if (profileModulesElement != null) {
                    profileModulesElement.name(SUBPROJECTS);

 * <pre>{@code
 * // Find child element
 * Element child = parent.child("version").orElse(null);
 *
 * // Check if child exists
 * boolean hasVersion = parent.child("version").isPresent();
 *
 * // Get child text content
 * String version = parent.child("version")
 *     .map(Element::textContent)
 *     .orElse(null);
 *
 * // Get trimmed text content
 * String trimmedVersion = parent.child("version")

             * based on the configured remote repos.
             */
            MavenSession session = legacySupport.getSession();
            if (session != null) {
                MavenExecutionRequest req = session.getRequest();
                if (req != null) {
                    request.setActiveProfileIds(req.getActiveProfiles());
                    request.setInactiveProfileIds(req.getInactiveProfiles());
                }

                errors << "From non-null returning to null returning breaking change"
            } else if (oldNullability == Nullability.NON_NULL && newNullability == Nullability.UNMARKED) {
                errors << "From non-null returning to null-unmarked returning breaking change"

        this(exception, message, reference, null);
    }

    public ExceptionSummary(Throwable exception, String message, String reference, List<ExceptionSummary> children) {
        this.exception = exception;
        this.message = (message != null) ? message : "";
        this.reference = (reference != null) ? reference : "";
        this.children = (children != null) ? Collections.unmodifiableList(children) : Collections.emptyList();

        return this;
    }

    public void addArtifact(Artifact artifact) {
        if (artifacts == null) {
            artifacts = new LinkedHashSet<>();
        }

        artifacts.add(artifact);
    }

    public Set<Artifact> getArtifacts() {
        if (artifacts == null) {
            artifacts = new LinkedHashSet<>();
        }

        return artifacts;
    }

    public void addArtifact(Artifact artifact) {
        if (artifacts == null) {
            artifacts = new LinkedHashSet<>();
        }

        artifacts.add(artifact);
    }

    public Set<Artifact> getArtifacts() {
        return artifacts;
    }

    public void addRequestedArtifact(Artifact artifact) {
        if (requestedArtifacts == null) {
            requestedArtifacts = new LinkedHashSet<>();
        }