Messages duplicated in Chat demo in JRuby

[nengxu]

I run the Chat demo with Puma (2.7.1), Rails (4.1.0.beta1), JRuby (1.7.9). Whenever I entered a message in the input field, this message got duplicated in the output of all clients.

Attached please find screenshots of Chrome, IE, and Firefox. Easily to know that Firefox was joined later in the conversation.

[ngauthier]

Is there any difference at all between your folder and the example? I would expect the Gemfile.lock to be a little different because of jruby. Anything else?

[nengxu]

Apart from using Rails 4.1.0.beta1, I just copied your code over. The content of my Gemfile.lock:

GEM
  remote: https://rubygems.org/
  specs:
    actionmailer (4.1.0.beta1)
      actionpack (= 4.1.0.beta1)
      actionview (= 4.1.0.beta1)
      mail (~> 2.5.4)
    actionpack (4.1.0.beta1)
      actionview (= 4.1.0.beta1)
      activesupport (= 4.1.0.beta1)
      rack (~> 1.5.2)
      rack-test (~> 0.6.2)
    actionview (4.1.0.beta1)
      activesupport (= 4.1.0.beta1)
      builder (~> 3.1)
      erubis (~> 2.7.0)
    activemodel (4.1.0.beta1)
      activesupport (= 4.1.0.beta1)
      builder (~> 3.1)
    activerecord (4.1.0.beta1)
      activemodel (= 4.1.0.beta1)
      activesupport (= 4.1.0.beta1)
      arel (~> 5.0.0)
    activesupport (4.1.0.beta1)
      i18n (~> 0.6, >= 0.6.9)
      json (~> 1.7, >= 1.7.7)
      minitest (~> 5.1)
      thread_safe (~> 0.1)
      tzinfo (~> 1.1)
    after_do (0.2.3)
    arel (5.0.0)
    atomic (1.1.14-java)
    awesome_print (1.2.0)
    better_errors (1.1.0)
      coderay (>= 1.0.0)
      erubis (>= 2.6.6)
    builder (3.2.2)
    coderay (1.1.0)
    coffee-rails (4.0.1)
      coffee-script (>= 2.2.0)
      railties (>= 4.0.0, < 5.0)
    coffee-script (2.2.0)
      coffee-script-source
      execjs
    coffee-script-source (1.6.3)
    colorize (0.6.0)
    erubis (2.7.0)
    execjs (2.0.2)
    ffi (1.9.3-java)
    hike (1.2.3)
    i18n (0.6.9)
    jbuilder (2.0.2)
      activesupport (>= 3.0.0)
      multi_json (>= 1.2.0)
    jquery-rails (3.0.4)
      railties (>= 3.0, < 5.0)
      thor (>= 0.14, < 2.0)
    jquery-rails-cdn (1.0.1)
      jquery-rails
    json (1.8.1-java)
    letters (0.4.1)
      activesupport
      awesome_print
      colorize
      xml-simple
    mail (2.5.4)
      mime-types (~> 1.16)
      treetop (~> 1.4.8)
    method_source (0.8.2)
    mime-types (1.25.1)
    minitest (5.2.1)
    multi_json (1.8.4)
    polyglot (0.3.3)
    pry (0.9.12.4-java)
      coderay (~> 1.0)
      method_source (~> 0.8)
      slop (~> 3.4)
      spoon (~> 0.0)
    pry-rails (0.3.2)
      pry (>= 0.9.10)
    puma (2.7.1-java)
      rack (>= 1.1, < 2.0)
    quiet_assets (1.0.2)
      railties (>= 3.1, < 5.0)
    rack (1.5.2)
    rack-test (0.6.2)
      rack (>= 1.0)
    rails (4.1.0.beta1)
      actionmailer (= 4.1.0.beta1)
      actionpack (= 4.1.0.beta1)
      actionview (= 4.1.0.beta1)
      activemodel (= 4.1.0.beta1)
      activerecord (= 4.1.0.beta1)
      activesupport (= 4.1.0.beta1)
      bundler (>= 1.3.0, < 2.0)
      railties (= 4.1.0.beta1)
      sprockets-rails (~> 2.0.0)
    railties (4.1.0.beta1)
      actionpack (= 4.1.0.beta1)
      activesupport (= 4.1.0.beta1)
      rake (>= 0.8.7)
      thor (>= 0.18.1, < 2.0)
    rake (10.1.1)
    redis (3.0.6)
    slop (3.4.7)
    spoon (0.0.4)
      ffi
    sprockets (2.10.1)
      hike (~> 1.2)
      multi_json (~> 1.0)
      rack (~> 1.0)
      tilt (~> 1.1, != 1.3.0)
    sprockets-rails (2.0.1)
      actionpack (>= 3.0)
      activesupport (>= 3.0)
      sprockets (~> 2.8)
    thor (0.18.1)
    thread_safe (0.1.3-java)
      atomic
    tilt (1.4.1)
    treetop (1.4.15)
      polyglot
      polyglot (>= 0.3.1)
    try_to (1.0)
    tubesock (0.2.2)
      rack (>= 1.5.0)
      websocket (>= 1.1.0)
    turbolinks (2.2.0)
      coffee-rails
    tzinfo (1.1.0)
      thread_safe (~> 0.1)
    websocket (1.1.2)
    xml-simple (1.1.3)

PLATFORMS
  java

DEPENDENCIES
  after_do
  better_errors
  jbuilder
  jquery-rails-cdn
  letters
  pry-rails
  puma
  quiet_assets
  rails (= 4.1.0.beta1)
  redis
  try_to
  tubesock
  turbolinks