Is Comparator SAM interface ?

[Artur Biesiadowski]

Hello,

For the function conversion, straw-man proposal is expecting interfaces 
defining just one method. It might require wording differently - if read 
literally, java.util.Comparator is not suitable for function conversion, 
because it restates 'equals' in the interface in addition to compare. 
Same goes for Predicate in google collections and probably some other 
classes in different libraries.

Regards,
Artur Biesiadowski