org.jruby.util.io
Interfaces 
OpenFile.Finalizer
Stream
Classes 
BlockingIO
BlockingIO.Condition
ChannelDescriptor
ChannelStream
CRLFStreamWrapper
FileExistsException
JRubyObjectInputStream
ModeFlags
NullChannel
OpenFile
SelectBlob
SelectorFactory
SelectorPool
Enums 
STDIO
Exceptions 
BadDescriptorException
DirectoryAsFileException
InvalidValueException
PermissionDeniedException
PipeException