rake jetty:restart routinely fails

[atz]

$ rake jetty:restart

Instance stop method called for pid '8382'
Starting jetty with these values: 
jetty_home: /Users/atz/repos/argo/jetty
jetty_command: java -Djetty.port=8983 -Dsolr.solr.home=/Users/atz/repos/argo/jetty/solr -XX:MaxPermSize=256m -Xmx256m -jar start.jar
rake aborted!
Port 8983 is already in use.
/Users/atz/.rvm/gems/ruby-1.9.3-p547/gems/jettywrapper-1.8.2/lib/jettywrapper.rb:358:in `start'
/Users/atz/.rvm/gems/ruby-1.9.3-p547/gems/jettywrapper-1.8.2/lib/jettywrapper.rb:233:in `start'
/Users/atz/.rvm/gems/ruby-1.9.3-p547/gems/jettywrapper-1.8.2/lib/tasks/jettywrapper.rake:43:in `block (2 levels) in <top (required)>'
/Users/atz/.rvm/gems/ruby-1.9.3-p547/bin/ruby_executable_hooks:15:in `eval'
/Users/atz/.rvm/gems/ruby-1.9.3-p547/bin/ruby_executable_hooks:15:in `<main>'
Tasks: TOP => jetty:restart
(See full trace by running task with --trace)

The old process isn't fully shut down when the new one tries to spin up. It needs to wait a few seconds between stop and start (preferably checking to see if the port actually becomes available).

[awead]

FWIW, I just use killall java to stop the running jetty. Alternatively, we could use a value in jetty.yml to wait the number of seconds between stop and start.