Is it possible to create a List

So let's say I use reflection to find a class'subtypes (I'm using the Google Reflections library).

Set<Class<? extends Parent>> subTypes = reflections.getSubTypesOf(Parent.class);

now I want to create a list for each subtype, by iterating over the set's members, so I want something like this:

try {
    for (Class<? extends Parent> cType : subTypes.iterator()) {
        Class x = Class.forName(cType.getName());
        List<x> list = new ArrayList<x>();
    }
} catch(ClassNotFoundException ex){
    ...
}

However, this doesn't work, and the compiler complains that 'x is an unknown class' on the list definition.

Is there a way to define a list based on the reflected types?