Missing return statement after if-else in Java [closed]

Im trying to run this program and i got an error - "Missing return statement", although i have an else in the end with return within.

Thanks

  public boolean isLocated()
{
    if ((_point1.quadrant() == _point2 .quadrant()) && (_point1.quadrant() == _point3 .quadrant()))
    {
        if((_point1.quadrant()) != 0)//check if both points are on axis
        {
            return true;
        }
        
    }
    else
    {
        return false;
    }
            
}