Re: future.error == nil

[Aiesha_Nazarothi]

Well, managed to struggle my way out of that thing. Well, first of all: don not 
use all with long enough future lists when you are unsure about their 
stability. Depending on sheer luck, it may and will eventually leak excpetions 
- even exceptions you _thought_ you deal with already. Use your own try-encased 
poll() to deal with such situations.