parse.java

Users.java
    public Users(int id, String username, String password, String email) {
        this.id = id;
        this.username = username;
        this.password = password;
        this.email = email;
        this.projectsMap = new HashMap<>();
    }
 	private int id;
    private String username;
    private String password;
    private String email;
    private boolean enabled = true;
    private Map<Integer, List<Projects>> projectsMap;
	//getter method

Projects.java:

    private int id;
    private String title;
    private String description;
    private Date createDate;
    private Date finishDate;
    public Projects(int id, String title, String description, Date createDate, Date finishDate) {
        this.id = id;
        this.title = title;
        this.description = description;
        this.createDate = createDate;
        this.finishDate = finishDate;
    }
	//getter method

Main.java
		List<Users> usersList = new ArrayList<>();

        Users user = new Users(1, "user1", "12345", "user1@mail.ru");
        Users user2 = new Users(2, "user2", "123", "user2@mail.ru");
        Date today = new Date();
        Projects project = new Projects(1, "project1", "project1Description", today, today);
        user.addProject(user.getId(), project);
        usersList.add(user);
        usersList.add(user2);
        for (Users u : usersList) {
            System.out.println(u.getUsername() + " project *************");
            for (Map.Entry<Integer, List<Projects>> entry : u.getProjectsMap().entrySet()) {
                if (entry.getKey() == user.getId()) {
                    System.out.println(entry.getValue().get(0).getDescription());
                }
            }
            System.out.println(u.getPassword());
            System.out.println("***********************************");
        }