Transform complex java object to and from JSON

[dense jungle]

⌛ This post has been reserved for your question.

Hey @valid ether! Please use /close or the Close Post button above when your problem is solved. Please remember to follow the help guidelines. This post will be automatically marked as dormant after 300 minutes of inactivity.

TIP: Narrow down your issue to simple and precise questions to maximize the chance that others will reply in here.

[dense jungle]

I've tried gson and jackson. it throws infinite loop error, I suspect because the class is too complex. What is a good way to create 2 methods to create JSON and obtain the netwokdesign class from json?

public abstract class NetworkDesign implements Serializable {
    public enum Category {

        SES("SES"),
        EQPT("EQPT"),
        OPTICAL(null),
        IP("IP"),
        NODE("NODE");

    public enum Type {

        EQPT(Category.EQPT),
    
        Category category;

        private Type(Category category) {
            this.category = category;
        }

    
    }

    private static final long serialVersionUID = 1L;

    protected final String id;

    protected String parentId;

    protected Set<String> aliases;

    protected final Set<NetworkLink> topLinks;

    private final Set<NetworkLink> view;

    private final Type type;


    protected final Critique critique;

    protected EnumSet<Purpose> applicablePurpose;

    protected final Map<String, List<String>> userFlowMap;

    protected String topologyOrigin;

    private Date loadTime;

    String server;

    ​​​public NetworkDesign(String id, Type type) {
        this.id = id;
        this.parentId = null;
        this.type = type;
        aliases = new LinkedHashSet<String>();
        aliases.add(id);
        this.critique = new NetworkCritique();
        applicablePurpose = EnumSet.of(Purpose.CUSTOMIZE);
        this.topLinks = new LinkedHashSet<NetworkLink>();
        this.parsedLinks = new LinkedHashSet<NetworkLink>();
        view = Collections.unmodifiableSet(topLinks);
        this.userFlowMap = CollectionUtil.createMultiMap();
        this.loadTime = new Date();
        try {
            this.server = NetworkUtil.getInetAddressHostname();//InetAddress.getLocalHost().getHostName();
        } catch (Exception e) {
            server = "unknown";
        }

    }​​​