forked bcuz it was anonymous (could it be deleted .. dunno)

gistfile1

~/projects/jruby ➔ jmap -histo 19907 | grep rubyobj | head -50
 116:          1945          46680  rubyobj.Gem.Version
 118:          1898          45552  rubyobj.Gem.Version
 120:          1826          43824  rubyobj.Gem.Requirement
 123:          1804          43296  rubyobj.Gem.Requirement
 158:           914          21936  rubyobj.Gem.Dependency
 166:           876          21024  rubyobj.Gem.Dependency
 209:           463          11112  rubyobj.Gem.Specification
 211:           455          10920  rubyobj.Gem.Specification
 319:           142           3408  rubyobj.ActiveSupport.TimeZone
 321:           142           3408  rubyobj.TZInfo.TimezoneProxy
 353:           106           2544  rubyobj.Gem.Platform
 363:            99           2376  rubyobj.Gem.Platform
 381:            83           1992  rubyobj.Rails.Initializable.Initializer
 526:            28            672  rubyobj.Regin.Atom
 534:            27            648  rubyobj.Rails.Paths.Path
 544:            26            624  rubyobj.Bundler.LazySpecification
 596:            23            552  rubyobj.Set
 629:            19            456  rubyobj.ActiveSupport.Notifications.Fanout.Subscriber
 681:            16            384  rubyobj.ActiveSupport.Dependencies.Reference
 911:            16            384  rubyobj.ActionDispatch.MiddlewareStack.Middleware
 936:            14            336  rubyobj.Mime.Type
1018:            10            240  rubyobj.Rails.Railtie.Configuration
1037:             9            216  rubyobj.ActiveSupport.Callbacks.Callback
1040:             9            216  rubyobj.ActiveModel.AttributeMethods.ClassMethods.AttributeMethodMatcher
2236:             7            168  rubyobj.Regin.Expression
2296:             6            144  rubyobj.Pathname
2534:             5            120  rubyobj.Rack.Mount.Multimap
2537:             5            120  rubyobj.Gem.Security.Policy
2587:             4             96  rubyobj.Regin.Anchor
2592:             4             96  rubyobj.Bundler.SpecSet
2615:             4             96  rubyobj.Regin.Group
2679:             3             72  rubyobj.ActionView.FileSystemResolver
2683:             3             72  rubyobj.Rails.DeprecatedConstant
2687:             3             72  rubyobj.Bundler.DepProxy
2691:             3             72  rubyobj.ActiveSupport.LogSubscriber
2727:             3             72  rubyobj.Bundler.Index
3446:             2             48  rubyobj.OptionParser.Switch.NoArgument
3448:             2             48  rubyobj.OptionParser.Switch.NoArgument
3469:             2             48  rubyobj.Rack.Mount.GeneratableRegexp.DynamicSegment
3474:             2             48  rubyobj.URI.HTTP
3478:             2             48  rubyobj.ActionDispatch.Routing.RouteSet.Dispatcher
3498:             2             48  rubyobj.Rack.Mount.Route
3520:             2             48  rubyobj.Bundler.Source.Rubygems
3522:             2             48  rubyobj.ActionDispatch.Routing.Route
3543:             2             48  rubyobj.ActiveSupport.FileUpdateChecker
3718:             1             24  rubyobj.ActiveRecord.Railtie
3720:             1             24  rubyobj.Rack.MethodOverride
3723:             1             24  rubyobj.Trinidad.Server
3726:             1             24  rubyobj.I18n.Railtie
3735:             1             24  rubyobj.JRuby.Rack.RailsBooter