Jruby 1.6 + rails 3 - deployment in tomcat error

Hi,

I am migrating from rails 2.3.5 to rails 3 and jruby 1.5 to jruby 1.6.

When i deploy my application in tomcat 6 and access it i get the
following error:

======================================================================
SEVERE: unable to create shared application instance
org.jruby.rack.RackInitializationException: No such file to load –
java.lang.NullPointerException: null
from
C:/apache-tomcat-6.0.26/webapps/ROOT/WEB-INF/gems/gems/activesupport-3.0.0/lib/active_support/dependencies.rb:216:in
require_dependency' from C:/apache-tomcat-6.0.26/webapps/ROOT/WEB-INF/gems/gems/railties-3.0.0/lib/rails/engine.rb:138:ineager_load!’
from
C:/apache-tomcat-6.0.26/webapps/ROOT/WEB-INF/gems/gems/railties-3.0.0/lib/rails/engine.rb:137:in
each' from C:/apache-tomcat-6.0.26/webapps/ROOT/WEB-INF/gems/gems/railties-3.0.0/lib/rails/engine.rb:137:ineager_load!’
from
C:/apache-tomcat-6.0.26/webapps/ROOT/WEB-INF/gems/gems/railties-3.0.0/lib/rails/engine.rb:135:in
each' from C:/apache-tomcat-6.0.26/webapps/ROOT/WEB-INF/gems/gems/railties-3.0.0/lib/rails/engine.rb:135:ineager_load!’
from
C:/apache-tomcat-6.0.26/webapps/ROOT/WEB-INF/gems/gems/railties-3.0.0/lib/rails/application.rb:108:in
eager_load!' from C:/apache-tomcat-6.0.26/webapps/ROOT/WEB-INF/gems/gems/railties-3.0.0/lib/rails/application/finisher.rb:41 ... 19 levels... from file:/C:/apache-tomcat-6.0.26/webapps/ROOT/WEB-INF/lib/jruby-rack-1.0.0.jar!/vendor/rack-1.1.0/rack/builder.rb:46:ininitialize’
from :2:in `new’
from :2

at
org.jruby.rack.DefaultRackApplicationFactory$4.init(DefaultRackApplicationFactory.java:184)
at
org.jruby.rack.DefaultRackApplicationFactory.getApplication(DefaultRackApplicationFactory.java:59)
at
org.jruby.rack.SharedRackApplicationFactory.init(SharedRackApplicationFactory.java:27)
at
org.jruby.rack.RackServletContextListener.contextInitialized(RackServletContextListener.java:40)
at
org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:3972)
at
org.apache.catalina.core.StandardContext.start(StandardContext.java:4467)
at
org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:791)
at
org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:771)
at
org.apache.catalina.core.StandardHost.addChild(StandardHost.java:546)
at
org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1041)
at
org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:964)
at
org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:502)
at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1277)
at
org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:321)
at
org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)
at
org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053)
at org.apache.catalina.core.StandardHost.start(StandardHost.java:785)
at
org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)
at
org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)
at
org.apache.catalina.core.StandardService.start(StandardService.java:519)
at
org.apache.catalina.core.StandardServer.start(StandardServer.java:710)
at org.apache.catalina.startup.Catalina.start(Catalina.java:581)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414)
Caused by: org.jruby.exceptions.RaiseException: No such file to load –
java.lang.NullPointerException: null
at
Kernel.raise(C:/apache-tomcat-6.0.26/webapps/ROOT/WEB-INF/gems/gems/activesupport-3.0.0/lib/active_support/dependencies.rb:304)
at
ActiveSupport::Dependencies.depend_on(C:/apache-tomcat-6.0.26/webapps/ROOT/WEB-INF/gems/gems/activesupport-3.0.0/lib/active_support/dependencies.rb:216)
at
ActiveSupport::Dependencies::Loadable.require_dependency(C:/apache-tomcat-6.0.26/webapps/ROOT/WEB-INF/gems/gems/railties-3.0.0/lib/rails/engine.rb:138)
at
Rails::Engine.eager_load!(C:/apache-tomcat-6.0.26/webapps/ROOT/WEB-INF/gems/gems/railties-3.0.0/lib/rails/engine.rb:137)
at
Array.each(C:/apache-tomcat-6.0.26/webapps/ROOT/WEB-INF/gems/gems/railties-3.0.0/lib/rails/engine.rb:137)
at
Rails::Engine.eager_load!(C:/apache-tomcat-6.0.26/webapps/ROOT/WEB-INF/gems/gems/railties-3.0.0/lib/rails/engine.rb:135)
at
Array.each(C:/apache-tomcat-6.0.26/webapps/ROOT/WEB-INF/gems/gems/railties-3.0.0/lib/rails/engine.rb:135)
at
Rails::Engine.eager_load!(C:/apache-tomcat-6.0.26/webapps/ROOT/WEB-INF/gems/gems/railties-3.0.0/lib/rails/application.rb:108)
at
Rails::Application.eager_load!(C:/apache-tomcat-6.0.26/webapps/ROOT/WEB-INF/gems/gems/railties-3.0.0/lib/rails/application/finisher.rb:41)
at
(unknown).(unknown)(C:/apache-tomcat-6.0.26/webapps/ROOT/WEB-INF/gems/gems/railties-3.0.0/lib/rails/initializable.rb:25)
at
Kernel.instance_exec(C:/apache-tomcat-6.0.26/webapps/ROOT/WEB-INF/gems/gems/railties-3.0.0/lib/rails/initializable.rb:25)
at
Kernel.instance_exec(C:/apache-tomcat-6.0.26/webapps/ROOT/WEB-INF/gems/gems/railties-3.0.0/lib/rails/initializable.rb:25)
at
Rails::Initializable::Initializer.run(C:/apache-tomcat-6.0.26/webapps/ROOT/WEB-INF/gems/gems/railties-3.0.0/lib/rails/initializable.rb:50)
at
Rails::Initializable.run_initializers(C:/apache-tomcat-6.0.26/webapps/ROOT/WEB-INF/gems/gems/railties-3.0.0/lib/rails/initializable.rb:49)
at
Array.each(C:/apache-tomcat-6.0.26/webapps/ROOT/WEB-INF/gems/gems/railties-3.0.0/lib/rails/initializable.rb:49)
at
Rails::Initializable.run_initializers(C:/apache-tomcat-6.0.26/webapps/ROOT/WEB-INF/gems/gems/railties-3.0.0/lib/rails/application.rb:134)
at
Rails::Application.initialize!(C:/apache-tomcat-6.0.26/webapps/ROOT/WEB-INF/gems/gems/railties-3.0.0/lib/rails/application.rb:77)
at
#Class:01x1a49182.method_missing(C:/apache-tomcat-6.0.26/webapps/ROOT/WEB-INF/config/environment.rb:5)
at
(unknown).(unknown)(C:/apache-tomcat-6.0.26/webapps/ROOT/WEB-INF/config/environment.rb:239)
at
Kernel.require(C:/apache-tomcat-6.0.26/webapps/ROOT/WEB-INF/gems/gems/activesupport-3.0.0/lib/active_support/dependencies.rb:239)
at
ActiveSupport::Dependencies::Loadable.require(C:/apache-tomcat-6.0.26/webapps/ROOT/WEB-INF/gems/gems/activesupport-3.0.0/lib/active_support/dependencies.rb:225)
at
ActiveSupport::Dependencies::Loadable.load_dependency(C:/apache-tomcat-6.0.26/webapps/ROOT/WEB-INF/gems/gems/activesupport-3.0.0/lib/active_support/dependencies.rb:591)
at
ActiveSupport::Dependencies.new_constants_in(C:/apache-tomcat-6.0.26/webapps/ROOT/WEB-INF/gems/gems/activesupport-3.0.0/lib/active_support/dependencies.rb:225)
at
ActiveSupport::Dependencies::Loadable.load_dependency(C:/apache-tomcat-6.0.26/webapps/ROOT/WEB-INF/gems/gems/activesupport-3.0.0/lib/active_support/dependencies.rb:239)
at
ActiveSupport::Dependencies::Loadable.require(file:/C:/apache-tomcat-6.0.26/webapps/ROOT/WEB-INF/lib/jruby-rack-1.0.0.jar!/jruby/rack/rails.rb:161)
at
JRuby::Rack::RailsBooter::Rails3Environment.load_environment(file:/C:/apache-tomcat-6.0.26/webapps/ROOT/WEB-INF/lib/jruby-rack-1.0.0.jar!/jruby/rack/rails.rb:165)
at
JRuby::Rack::RailsBooter::Rails3Environment.to_app(file:/C:/apache-tomcat-6.0.26/webapps/ROOT/WEB-INF/lib/jruby-rack-1.0.0.jar!/jruby/rack/rails.rb:186)
at #Class:01x148083b.new(:2)
at
(unknown).(unknown)(file:/C:/apache-tomcat-6.0.26/webapps/ROOT/WEB-INF/lib/jruby-rack-1.0.0.jar!/vendor/rack-1.1.0/rack/builder.rb:46)
at
Kernel.instance_eval(file:/C:/apache-tomcat-6.0.26/webapps/ROOT/WEB-INF/lib/jruby-rack-1.0.0.jar!/vendor/rack-1.1.0/rack/builder.rb:46)
at
Kernel.instance_eval(file:/C:/apache-tomcat-6.0.26/webapps/ROOT/WEB-INF/lib/jruby-rack-1.0.0.jar!/vendor/rack-1.1.0/rack/builder.rb:46)
at Rack::Builder.initialize(:2)
at (unknown).new(:2)
at (unknown).(unknown)(:1)
Sep 28, 2011 7:48:25 PM org.apache.catalina.core.ApplicationContext log
SEVERE: Error: application initialization failed
org.jruby.rack.RackInitializationException: unable to create shared
application instance
at
org.jruby.rack.SharedRackApplicationFactory.init(SharedRackApplicationFactory.java:39)
at
org.jruby.rack.RackServletContextListener.contextInitialized(RackServletContextListener.java:40)
at
org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:3972)
at
org.apache.catalina.core.StandardContext.start(StandardContext.java:4467)
at
org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:791)
at
org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:771)
at
org.apache.catalina.core.StandardHost.addChild(StandardHost.java:546)
at
org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1041)
at
org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:964)
at
org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:502)
at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1277)
at
org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:321)
at
org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)
at
org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053)
at org.apache.catalina.core.StandardHost.start(StandardHost.java:785)
at
org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)
at
org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)
at
org.apache.catalina.core.StandardService.start(StandardService.java:519)
at
org.apache.catalina.core.StandardServer.start(StandardServer.java:710)
at org.apache.catalina.startup.Catalina.start(Catalina.java:581)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414)
Caused by: org.jruby.rack.RackInitializationException: No such file to
load – java.lang.NullPointerException: null
from
C:/apache-tomcat-6.0.26/webapps/ROOT/WEB-INF/gems/gems/activesupport-3.0.0/lib/active_support/dependencies.rb:216:in
require_dependency' from C:/apache-tomcat-6.0.26/webapps/ROOT/WEB-INF/gems/gems/railties-3.0.0/lib/rails/engine.rb:138:ineager_load!’
from
C:/apache-tomcat-6.0.26/webapps/ROOT/WEB-INF/gems/gems/railties-3.0.0/lib/rails/engine.rb:137:in
each' from C:/apache-tomcat-6.0.26/webapps/ROOT/WEB-INF/gems/gems/railties-3.0.0/lib/rails/engine.rb:137:ineager_load!’
from
C:/apache-tomcat-6.0.26/webapps/ROOT/WEB-INF/gems/gems/railties-3.0.0/lib/rails/engine.rb:135:in
each' from C:/apache-tomcat-6.0.26/webapps/ROOT/WEB-INF/gems/gems/railties-3.0.0/lib/rails/engine.rb:135:ineager_load!’
from
C:/apache-tomcat-6.0.26/webapps/ROOT/WEB-INF/gems/gems/railties-3.0.0/lib/rails/application.rb:108:in
eager_load!' from C:/apache-tomcat-6.0.26/webapps/ROOT/WEB-INF/gems/gems/railties-3.0.0/lib/rails/application/finisher.rb:41 ... 19 levels... from file:/C:/apache-tomcat-6.0.26/webapps/ROOT/WEB-INF/lib/jruby-rack-1.0.0.jar!/vendor/rack-1.1.0/rack/builder.rb:46:ininitialize’
from :2:in `new’
from :2

at
org.jruby.rack.DefaultRackApplicationFactory$4.init(DefaultRackApplicationFactory.java:184)
at
org.jruby.rack.DefaultRackApplicationFactory.getApplication(DefaultRackApplicationFactory.java:59)
at
org.jruby.rack.SharedRackApplicationFactory.init(SharedRackApplicationFactory.java:27)
… 25 more

I am using warbler version 1.2.0 to create the war and deploy in tomcat.
The contents of my warble.rb file is:

Warbler::Config.new do |config|

Features: additional options controlling how the jar is built.

Currently the following features are supported:

- gemjar: package the gem repository in a jar file in WEB-INF/lib

config.features = %w(gemjar)

Application directories to be included in the webapp.

config.dirs = %w(app config lib log vendor tmp)

Additional files/directories to include, above those in config.dirs

config.includes = FileList[“db”]

Additional files/directories to exclude

config.excludes = FileList[“lib/tasks/*”]

Additional Java .jar files to include. Note that if .jar files are

placed

in lib (and not otherwise excluded) then they need not be mentioned

here.

JRuby and JRuby-Rack are pre-loaded in this list. Be sure to

include your

own versions if you directly set the value

config.java_libs += FileList[“lib/java/*.jar”]

Loose Java classes and miscellaneous files to be placed in

WEB-INF/classes.

config.java_classes = FileList[“target/classes/**.*”]

One or more pathmaps defining how the java classes should be copied

into

WEB-INF/classes. The example pathmap below accompanies the

java_classes

configuration above. See

http://rake.rubyforge.org/classes/String.html#M000017

for details of how to specify a pathmap.

config.pathmaps.java_classes << “%{target/classes/,}p”

config.gems += [“activerecord-jdbcpostgresql-adapter”, “jruby-openssl”]

Path to the pre-bundled gem directory inside the war file. Default

is ‘WEB-INF/gems’. Specify path if gems are already bundled

before running Warbler. This also sets ‘gem.path’ inside web.xml.

config.gem_path = “WEB-INF/vendor/bundler_gems”

Bundler support is built-in. If Warbler finds a Gemfile in the

project directory, it will be used to collect the gems to bundle

in your application. If you wish to explicitly disable this

functionality, uncomment here.

config.bundler = false

An array of Bundler groups to avoid including in the war file.

Defaults to [“development”, “test”].

config.bundle_without = []

Files for WEB-INF directory (next to web.xml). This contains

web.xml by default. If there is an .erb-File it will be processed

with webxml-config. You may want to exclude this file via

config.excludes.

config.webinf_files += FileList[“jboss-web.xml”]

Other gems to be included. You need to tell Warbler which gems

your application needs so that they can be packaged in the war

file.

The Rails gems are included by default unless the vendor/rails

directory is present.

config.gems += [“activerecord-jdbcmysql-adapter”, “jruby-openssl”]

config.gems << “tzinfo”

Uncomment this if you don’t want to package rails gem.

config.gems -= [“rails”]

The most recent versions of gems are used.

You can specify versions of gems by using a hash assignment:

config.gems[“rails”] = “2.0.2”

You can also use regexps or Gem::Dependency objects for flexibility

or

fine-grained control.

config.gems << /^merb-/

config.gems << Gem::Dependency.new(“merb-core”, “= 0.9.3”)

Include gem dependencies not mentioned specifically. Default is

true, uncomment to turn off.

config.gem_dependencies = false

Array of regular expressions matching relative paths in gems to be

excluded from the war. Defaults to empty, but you can set it like

below, which excludes test files.

config.gem_excludes = [/^(test|spec)//]

Files to be included in the root of the webapp. Note that files in

public

will have the leading ‘public/’ part of the path stripped during

staging.

config.public_html = FileList[“public//*", "doc//*”]

Pathmaps for controlling how public HTML files are copied into the

.war

config.pathmaps.public_html = ["%{public/,}p"]

Pathmaps for controlling how application files are copied into the

.war

config.pathmaps.application = [“WEB-INF/%p”]

Name of the war file (without the .war) – defaults to the basename

of RAILS_ROOT

config.war_name = “mywar”

Name of the MANIFEST.MF template for the war file. Defaults to a

simple

MANIFEST.MF that contains the version of Warbler used to create the

war file.

config.manifest_file = “config/MANIFEST.MF”

When using the ‘compiled’ feature and specified, only these Ruby

files will be compiled. Default is to compile all .rb files in

the application.

config.compiled_ruby_files = FileList[‘app/**/*.rb’]

Value of RAILS_ENV for the webapp – default as shown below

config.webxml.rails.env = ENV[‘RAILS_ENV’] || ‘production’

config.webxml.rails.env = ::Rails.env

Application booter to use, one of :rack, :rails, or :merb

(autodetected by default)

config.webxml.booter = :rails

When using the :rack booter, “Rackup” script to use.

- For ‘rackup.path’, the value points to the location of the rackup

script in the web archive file. You need to make sure this file

gets included in the war, possibly by adding it to config.includes

or config.webinf_files above.

- For ‘rackup’, the rackup script you provide as an inline string

is simply embedded in web.xml.

The script is evaluated in a Rack::Builder to load the application.

Examples:

config.webxml.rackup.path = ‘WEB-INF/hello.ru’

config.webxml.rackup = %{require ‘./lib/demo’; run

Rack::Adapter::Camping.new(Demo)}

config.webxml.rackup = require ‘cgi’ &&

CGI::escapeHTML(File.read(“config.ru”))

Control the pool of Rails runtimes. Leaving unspecified means

the pool will grow as needed to service requests. It is recommended

that you fix these values when running a production server!

config.webxml.jruby.min.runtimes = 2

config.webxml.jruby.max.runtimes = 4

config.gems[“rack”] = “1.2.1”

It was working earlier in Rails 2.3.5 and Jruby 1.5. I have upgraded
warbler too since earlier version of warble had some issues with
bundler.

Has anyone faced any such issue? or is anyone could suggest the cause
pls?

Why would you upgrade three things at once and try to debug it? You
have no
idea if it’s a JRuby issue, Rails 2.3.5 to 3.0 issue, or Warbler issue.

Try to upgrade one piece at a time, then run the app. If it works with
that
one piece upgraded, you can eliminate that part as being the issue.

-Nick K.

Hi Nick,

I had to upgrade warbler as the version of warbler i was using was not
compatible with Bundler of rails. So i had to upgrade Warbler. And the
above code worked in webrick. And when i deployed in tomcat i faced the
issue. Looks like some jruby parameter being missed or something.

Nick K. wrote in post #1024104:

Why would you upgrade three things at once and try to debug it? You
have no
idea if it’s a JRuby issue, Rails 2.3.5 to 3.0 issue, or Warbler issue.

Try to upgrade one piece at a time, then run the app. If it works with
that
one piece upgraded, you can eliminate that part as being the issue.

-Nick K.

I figured the issue. The gem i was using was jruby-jars 1.5.0 but the
jruby version was 1.6.0. , So installing the correct jruby-jars version
solved the issue.

Prachi T. wrote in post #1024316:

Hi Nick,

I had to upgrade warbler as the version of warbler i was using was not
compatible with Bundler of rails. So i had to upgrade Warbler. And the
above code worked in webrick. And when i deployed in tomcat i faced the
issue. Looks like some jruby parameter being missed or something.

Nick K. wrote in post #1024104:

Why would you upgrade three things at once and try to debug it? You
have no
idea if it’s a JRuby issue, Rails 2.3.5 to 3.0 issue, or Warbler issue.

Try to upgrade one piece at a time, then run the app. If it works with
that
one piece upgraded, you can eliminate that part as being the issue.

-Nick K.

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