In Current Binding Specification v1 constructor for list key
does not take arguments in order specified in YANG key statement, but rather in alphabetical order.

This could be considered design bug, since several other drafts / specifications
requires key values to be presented in same order as in yang model.

Also YANG language requires for RPC element to be present in same order
as in YANG model, so removing alphabetically sorted elements in favor
of elements sorted as present in YANG model will provide easier understanding
of Java Bidning and its mapping to YANG.