jruby-rack-worker

https://github.com/kares/jruby-rack-worker

Implements a thread based worker pattern on top of JRuby-Rack. Useful if you'd like to run background workers within your (deployed) web-application, concurrently in 'native' threads, instead of using separate daemon processes. Provides (thread-safe) implementations for popular worker libraries such as Resque and Delayed::Job, but one can easily write their own 'daemon' work processing loop as well.