From: Axel Etzold <AEtzold@...>
Date: 2008-08-21T00:06:22+09:00
Subject: Jruby and gems

Dear all,

I am having trouble loading a gem in Jruby, Ubuntu 8.04 persistently says it can't find it:

/usr/local/jruby-1.1.3/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in `require': no such file to load -- profligacy/swing (LoadError)

swing.rb is here on my system:

/usr/local/jruby-1.1.3/samples/minijava/swing.rb
/usr/local/profligacy-1.0/lib/profligacy/swing.rb
/usr/local/lib/ruby/gems/1.8/gems/profligacy-1.0-java/lib/profligacy/swing.rb

------------------------------------------------------------------------------------

It tried changing the PATH variable in .bashrc, but still, it doesn't work.

/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/jruby-1.1.3/bin

Is there something special that one has to do in JRuby to find gems ?



Below is the text of the script causing the error:

require "rubygems"
require 'java'
require 'profligacy/swing'

import 'javax.swing.JFrame'
import 'javax.swing.JLabel'

class SwingDemo
  def initialize
    jfrm = JFrame.new "A Simple Demo" 
    jfrm.setSize(275,100)
    jfrm.default_close_operation = JFrame::EXIT_ON_CLOSE
    jlab = JLabel.new " Swing powers the modern Java GUI" 
    jfrm.add jlab
    jfrm.pack
    jfrm.visible = true
  end
end

SwingUtilities.invoke_later proc { SwingDemo.new }.to_runnable
-----------------------------------------------------------------------------------------------------


Thank you very much for your help.

Best regards,

Axel 
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