Synchronized objects while iterating ArrayList

Question

Let's say i have the following scenario:

final int index = 10;
Phone phone = phoneList.get(index);
synchronized(phone)
{
   //some code runs here
}

So while the the phone object (which is got throught phoneList.get() method) is locked can another thread execute the method:

phoneList.remove(index);

and null the phone object at the given index?

Answer 1

Yes. why not?

But still, phone will be pointing to the same object. i.e. the object gets removed from list but the jvm still has reference to it.