Cheypnow

Scene newPatientScene = new Scene(patientController.getView());

AnchorPane is already set as root of another scene

String[] names = new String[users.length];
for (int i = 0; i < users.length; i++) {
   names[i] = users[i].getName();
}
return names;

if (sndText.trim().isEmpty()) {
   // ...
}

public Point(Point point) {
        this.x = point.x;
        this.y = point.y;
    }

@Override
    public boolean equals(Object o) {
        if (this == o) return true;
        if (o == null || getClass() != o.getClass()) return false;
        Point point = (Point) o;
        return x == point.x && y == point.y;
    }