const_missing in Ruby on Rails 2.3.11 raises LoadError
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Key: JRUBY-5699
URL: http://jira.codehaus.org/browse/JRUBY-5699
Project: JRuby
Issue Type: Bug
Affects Versions: JRuby 1.6
Environment: $jruby --version
jruby 1.6.0 (ruby 1.8.7 patchlevel 330) (2011-03-15 f3b6154) (Java HotSpot(TM)
Client VM 1.6.0_24) [linux-i386-java]
$jruby -S gem list
actionmailer (2.3.11)
actionpack (2.3.11)
activerecord (2.3.11)
activeresource (2.3.11)
activesupport (2.3.11)
rack (1.1.2)
rails (2.3.11)
rake (0.8.7)
sources (0.0.1)
$java --version
java version "1.6.0_24"
Java(TM) SE Runtime Environment (build 1.6.0_24-b07)
Java HotSpot(TM) Client VM (build 19.1-b02, mixed mode, sharing)
2011/04/06 15:58:24
Reporter: f_mura_j_h
Assignee: Thomas E Enebo
Priority: Trivial
Attachments: test_rails_app.tar.gz
I run small code by script/runner. LoadError very rarely occurs in JRuby 1.6.0
+ Ruby on Rails 2.3.11.
Run 6000 times. Occurred twice. In MRI, LoadError does not occur. Is there
maybe a problem with JRuby?
Error is below.
{noformat}
Expected /home/user/workspace/tmp/20110405/r2_3_11_160/lib/my_module.rb to
define MyModule
/home/user/workspace/tmp/20110405/jruby-1.6.0/lib/ruby/gems/1.8/gems/activesupport-2.3.11/lib/active_support/dependencies.rb:452:in
`load_missing_constant'
/home/user/workspace/tmp/20110405/jruby-1.6.0/lib/ruby/gems/1.8/gems/activesupport-2.3.11/lib/active_support/dependencies.rb:106:in
`const_missing_with_dependencies'
/home/user/workspace/tmp/20110405/jruby-1.6.0/lib/ruby/gems/1.8/gems/activesupport-2.3.11/lib/active_support/dependencies.rb:118:in
`const_missing'
const_missing_test.rb:7:in `(root)'
org/jruby/RubyProc.java:268:in `call'
org/jruby/RubyProc.java:232:in `call'
{noformat}
Attach a small rails project.
{noformat}
$tar xzvf test_rails_app.tar.gz
$cd ~/test_rails_app/
$cat ./lib/my_module.rb
module MyModule
`ls -l`
# some code...
end
$jruby -I./lib script/runner const_missing_test.rb
{noformat}
const_missing_test.rb is below.
{noformat}
require 'logger'
$logger = Logger.new('error.txt')
begin
[*(0..9)].collect do |i|
Thread.start{ p MyModule }
end.each{ |t| t.join }
rescue Exception => e
$logger.error "#{e}\n#{e.backtrace.join("\n")}"
end
{noformat}
Of course, if the following code, I can understand that the problem does not
occur.
{noformat}
require 'logger'
require 'my_module' # add require
$logger = Logger.new('error.txt')
begin
[*(0..9)].collect do |i|
Thread.start{ p MyModule }
end.each{ |t| t.join }
rescue Exception => e
$logger.error "#{e}\n#{e.backtrace.join("\n")}"
end
{noformat}
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