Question: `require': no such file to load -- peach

sudo jruby -S gem list --local

*** LOCAL GEMS ***

sources (0.0.1)

$ which jruby
/usr/bin/jruby
$ ll /usr/bin/jruby
lrwxrwxrwx 1 root root 23 2012-06-29 21:30 /usr/bin/jruby -> /etc/alternatives/jruby*
$ ruby helloWorld.rb
helloWorld.rb:3:in `require': no such file to load -- java (LoadError)
from helloWorld.rb:3
$ jruby helloWorld.rb
helloWorld.rb:4:in `require': no such file to load -- peach (LoadError)
from helloWorld.rb:4

$ gem query

*** LOCAL GEMS ***

#helloWorld.rb

require 'yaml'

require 'java'

require 'peach'

puts 'hello world'

#dataset = ENV['DATASET'] 

#puts "dataset " + dataset