question on object that extends AbstractList<E>

I have a custom object that extends AbstractList<E>  (E, in my case, is 
a Lotus Notes Document object wrapper.) I also want to implement methods 
in my custom object that return SimpleSequence values. i.e., in addition 
to requesting of my object an element in the AbstractList of Notes 
Documents I want to ask the object to lookup specific values and return 
them as SimpleSequences. The problem is that when trying to access the 
methods from FTL, I throw the error "Expected hash. <<objectname>> 
evaluated instead to freemarker.template.SimpleSequence..." How do I 
work around this?

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