Stack frames and objects (like the Idea Lab activity): Correct Solution

Given the code below, this method call:

Mous.roni();

...will eventually reach the point marked HERE. Draw a diagram of the stack and the heap at that point.

(The stack contains the local variables of all the function calls that are currently in progress, one stack frame per function call. The heap contains all of the objects that currently exist.)

In your diagram:

Label each stack frame with the name of the method.
Label each object with the name of its class.
Include the names of all the variables that belong to each object and stack frame, including the implicit this parameter if present. (You do not need to write the types of any variables.)
When a variable's value is null or a primitive, write the value immediately next to the variable.
When a variable points to an object, draw an arrow from the variable to the object it points to.

The code:

public class Mous {
    private int etGrufo;
    private Mous re;

    Mous(int etGrufo) {
        this.etGrufo = etGrufo;
    }

    public void setRe(Mous re) {
        this.re = re;
    }

    public void ringa(int iah, Psal hi, Psal pran) {
        hi.setTrar(pran);
        new Psal(512).foost();
        hi.hasio();
    }

    public void asiRhel(Mous tast) {
        Psal ve = new Psal(629);
        int nisa = 23;
        tast.lelpi(new Psal(800), tast);
        this.setRe(tast);
        new Mous(368).ringa(nisa, new Psal(539), ve);
    }

    public void lelpi(Psal iol, Mous ba) {
        Psal phli = new Psal(443);
    }

    public static void roni() {
        Psal.ikos();
        new Mous(987).asiRhel(new Mous(893));
    }
}

public class Psal {
    private int ube;
    private Psal prea;
    private Mous te;
    private Psal trar;

    Psal(int ube) {
        this.ube = ube;
    }

    public void setPrea(Psal prea) {
        this.prea = prea;
    }

    public void setTe(Mous te) {
        this.te = te;
    }

    public void setTrar(Psal trar) {
        this.trar = trar;
    }

    public void foost() {
        int rur = 92;
        this.setTrar(this);
        Psal.iaun(rur, this);
    }

    public static void brinba(Psal feti) {
        int unt = 78;
    }

    public static void ikos() {
        Psal unch = new Psal(906);
        Mous fe = new Mous(813);
        Psal op = new Psal(260);
        unch.faos();
    }

    public void hasio() {
        int nal = 10;
        int au = 72;
        int miar = 74;
        int dafa = 89;
    }

    public void faos() {
        Psal ul = new Psal(722);
        Mous stil = new Mous(658);
    }

    public static void iaun(int sqea, Psal edje) {
        Psal.brinba(edje);
        HERE;
    }
}

Solution

Hints for practicing this puzzle:

Practice with difficulty 0, then work your way up. This will help you get a handle on what the puzzle is asking.
There is only one path through the code from the starting method call to HERE. Start by finding that path.
Be thorough. Double check that you've fully diagrammed each step before you move on to the next one.
You can feed this code into https://pythontutor.com and watch a diagram like this build up step by step. (Yes, despite the web site's name, it also works with Java.)

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