class Gem::Specification

def self._all # :nodoc:
  unless defined?(@@all) && @@all then
    @@all = stubs.map(&:to_spec)
    # After a reset, make sure already loaded specs
    # are still marked as activated.
    specs = {}
    Gem.loaded_specs.each_value{|s| specs[s] = true}
    @@all.each{|s| s.activated = true if specs[s]}
  end
  @@all
end