Evaluate if list is empty JSTL

I've been trying to evaluate if this array list is empty or not but none of these have even compiled:

<c:if test="${myObject.featuresList.size == 0 }">                              

<c:if test="${myObject.featuresList.length == 0 }">                               

<c:if test="${myObject.featuresList.size() == 0 }">                               

<c:if test="${myObject.featuresList.length() == 0 }">                             

<c:if test="${myObject.featuresList.empty}">                              

<c:if test="${myObject.featuresList.empty()}">                            

<c:if test="${myObject.featuresList.isEmpty}">

How can I evaluate if an ArrayList is empty?

Source: Tips4all