Jruby complete and bundle


I have found a couple of web sites which describe how to use jruby
but it doesn’t seem to work for me.

/usr/bin/java -jar /vagrant/bin/jruby-complete-1.7.8.jar -S bundle exec
jruby: No such file or directory – bundle (LoadError)

Similarly I can’t invoke rake either.

Could somebody point out what I am doing wrong.


Bundler is not in jruby complete. You need to add it into the jar file
manually, or install it in a physical folder and add this path to gem

The 1st option is what I usually do.

I tried using bundler to bundle bundler but that didn’t work. I put the
bundler in my gemfile and then did a bundle packake which moved all the
gems to /vendor/cache but not bundler. Odd.

How do I put it into the jar file?

There seems to be two threads associated with this topic - perhaps
someone can merge them.

The easiest way to use JRuby complete - assuming the JVM is already
installed is to create a directory structure for your program project
like this


Put a copy of jruby-complete-xxx.jar into lib

Create a shell script (I call mine localTerminal.sh) in the project
directory with this content


export PATH=$PWD:$PATH;
export GEM_HOME=$PWD/GemHome;

As far as I know a similar .bat file will work on Windows

Just for convenience make another shell script called JRUBY with this in


java -jar lib/jruby-complete-1.7.0.jar $*

When you double-click the shell script it opens a terminal at the
project directory and then you can run your program with JRUBY myprog.rb
and you can list gems and do all the other stuff with JRUBY -S gem list.

Once you have created this framework you can just copy it somewhere else
to start another project.

No need for RVM or Bundler or any of that stuff - JRuby makes Ruby
Really Simple.


… if you insist on doing things the hard way.


The headline of the thread was clear: the issue is on how to use bundler
with jruby-complete.

Your sentence ‘No need for RVM or Bundler or any of that stuff’ is out
context I guess.

I see only 1 thread here, not 2.

Then I would suggest the following:

  • create a vendor folder at the top of your rails app, where the Gemfile
  • inside this vendor folder, create a cache folder (you can do steps 1
    2 by doing ‘mkdir -p vendor/cache’)
  • then use bundle with ‘bundle --path vendor/bundle’.

This will install the gems in vendor/bundle and not in the system. This
will ensure a non pollution of your system and easy deployment.

If you follow these steps, bundle list will work and list what is in
vendor/bundle accordingly.

Actually this is exactly what I am doing.

One thing I noticed is that bundler installs the gems into
vendor/bundle/jruby/1.9 so you have to set the GEM_PATH to that
and not to vendor/bundle. If I do that then I can list all the gems but
still can’t run trinidad because it says rake is missing. I tried
installing rake into that directory but that doesn’t seem to do

I feel like I am bit closer to making this work but still not there.

On Tue, Dec 3, 2013 at 10:01 PM, Christian MICHON <

Just to follow up on this advice.

I have a rails app I am using for testing. It has no real functionality
I put a bunch of gems in the Gemfile to test them. Because this is a
I am using the jruby complete gem with bundler in it. I used the
instructions in the gist somebody posted here to put bundler in the
complete gem.

I installed all the gems into vendor using this script

${jruby} -S gem install -i ${VENDORED_GEM_HOME} --no-rdoc --no-ri
${jruby} -S gem install -i ${VENDORED_GEM_HOME} --no-rdoc --no-ri rake
${jruby} -S bundle install --path=${VENDORED_GEM_HOME} --binstubs
development test

Then I did a vagrant up to fire up a VM with nothing but java installed
and attempted to list the gems



${jruby} -S gem list

gives the following output

*** LOCAL GEMS ***

bundler (1.3.5)
rake (10.1.0)

mmmm. Only two gems. I get the feeling it’s only looking into the jar
ignoring the GEM_HOME. Let’s try bundler

${jruby} -S bundle list

Gems included by the bundle:
Could not find rake-10.1.0 in any of the sources

So weird.

No: vendor/bundle/jruby/1.9 is the correct path for bundler. Do not set

Rake is not missing, it’s installed in your jruby-complete. But nothing
stops you from adding it into your Gemfile.

Could you share your Gemfile and maybe how your simple rails app is

I used this vendor/bundler approach with sinatra and trinidad (or
and it works out of the box with jruby…

This forum is not affiliated to the Ruby language, Ruby on Rails framework, nor any Ruby applications discussed here.

| Privacy Policy | Terms of Service | Remote Ruby Jobs