to_yaml missing on first hit: rails3.2.1 jboss7.1CR1b jruby1.6.6 warbler1.3.2

config-warble.rb

# Disable Rake-environment-task framework detection by uncommenting/setting to false
# Warbler.framework_detection = false

# Warbler web application assembly configuration file
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
  # - executable: embed a web server and make the war executable
  # - compiled: compile .rb files to .class files
  # 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 included.
  # config.java_classes = FileList["target/classes/**.*"]

  # One or more pathmaps defining how the java classes should be copied into
  # the archive. 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"

  # 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 = []

  # Other gems to be included. If you don't use Bundler or a gemspec
  # file, you need to tell Warbler which gems your application needs
  # so that they can be packaged in the archive.
  # For Rails applications, 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"] = "2.3.10"

  # You can also use regexps or Gem::Dependency objects for flexibility or
  # finer-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)\//]

  # Pathmaps for controlling how application files are copied into the archive
  # config.pathmaps.application = ["WEB-INF/%p"]

  # Name of the archive (without the extension). Defaults to the basename
  # of the project directory.
  # config.jar_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']

  # === War files only below here ===

  # 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"

  # 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"]

  # 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"]

  # Value of RAILS_ENV for the webapp -- default as shown below
  # config.webxml.rails.env = ENV['RAILS_ENV'] || 'production'

  # Application booter to use, one of :rack, :rails, or :merb (autodetected by default)
  # config.webxml.booter = :rails

  # Set JRuby to run in 1.9 mode.
  config.webxml.jruby.compat.version = "1.9"

  # 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

  # JNDI data source name
  # config.webxml.jndi = 'jdbc/rails'
end

JBoss server.log

14:43:13,526 INFO  [org.apache.catalina.core.ContainerBase.[jboss.web].[default-host].[/debug]] (http--127.0.0.1-8080-2) Warning: no min runtimes specified.
14:43:13,532 INFO  [org.apache.catalina.core.ContainerBase.[jboss.web].[default-host].[/debug]] (http--127.0.0.1-8080-2) Warning: no max runtimes specified.
14:43:13,536 INFO  [org.apache.catalina.core.ContainerBase.[jboss.web].[default-host].[/debug]] (http--127.0.0.1-8080-2) An exception happened during JRuby-Rack startup
method 'to_yaml' not defined in Object
--- System
jruby 1.6.6 (ruby-1.9.2-p312) (2012-01-30 5673572) (Java HotSpot(TM) 64-Bit Server VM 1.6.0_29) [darwin-x86_64-java]
Time: 2012-01-30 14:43:13 -0700
Server: JBoss Web/7.0.7.Final
jruby.home: classpath:/META-INF/jruby.home

--- Context Init Parameters:
jruby.compat.version = 1.9
public.root = /
rails.env = production

--- Backtrace
NameError: method 'to_yaml' not defined in Object
     remove_method at org/jruby/RubyModule.java:2316
            (eval) at classpath:/META-INF/jruby.home/lib/ruby/1.9/yaml.rb:32
       module_eval at org/jruby/RubyModule.java:2289
           yamler= at classpath:/META-INF/jruby.home/lib/ruby/1.9/yaml.rb:28
            (root) at classpath:/META-INF/jruby.home/lib/ruby/1.9/yaml.rb:50
           require at org/jruby/RubyKernel.java:1036
           require at classpath:/META-INF/jruby.home/lib/ruby/1.9/yaml.rb:36
         load_yaml at classpath:/META-INF/jruby.home/lib/ruby/site_ruby/1.8/rubygems.rb:662
         load_file at classpath:/META-INF/jruby.home/lib/ruby/site_ruby/1.8/rubygems/config_file.rb:235
        initialize at classpath:/META-INF/jruby.home/lib/ruby/site_ruby/1.8/rubygems/config_file.rb:178
     configuration at classpath:/META-INF/jruby.home/lib/ruby/site_ruby/1.8/rubygems.rb:361
     configuration at /Library/JBoss/7.1/standalone/tmp/vfs/temp98901aca44abeed4/debug.war-e3df8d018be9c22e/WEB-INF/gems/gems/bundler-1.0.21/lib/bundler/rubygems_integration.rb:25
        initialize at /Library/JBoss/7.1/standalone/tmp/vfs/temp98901aca44abeed4/debug.war-e3df8d018be9c22e/WEB-INF/gems/gems/bundler-1.0.21/lib/bundler/rubygems_integration.rb:5
           Bundler at /Library/JBoss/7.1/standalone/tmp/vfs/temp98901aca44abeed4/debug.war-e3df8d018be9c22e/WEB-INF/gems/gems/bundler-1.0.21/lib/bundler/rubygems_integration.rb:335
            (root) at /Library/JBoss/7.1/standalone/tmp/vfs/temp98901aca44abeed4/debug.war-e3df8d018be9c22e/WEB-INF/gems/gems/bundler-1.0.21/lib/bundler/rubygems_integration.rb:1
           require at org/jruby/RubyKernel.java:1036
           require at /Library/JBoss/7.1/standalone/tmp/vfs/temp98901aca44abeed4/debug.war-e3df8d018be9c22e/WEB-INF/gems/gems/bundler-1.0.21/lib/bundler/rubygems_integration.rb:36
            (root) at /Library/JBoss/7.1/standalone/tmp/vfs/temp98901aca44abeed4/debug.war-e3df8d018be9c22e/WEB-INF/gems/gems/bundler-1.0.21/lib/bundler/shared_helpers.rb:4
           require at org/jruby/RubyKernel.java:1036
           require at /Library/JBoss/7.1/standalone/tmp/vfs/temp98901aca44abeed4/debug.war-e3df8d018be9c22e/WEB-INF/gems/gems/bundler-1.0.21/lib/bundler/shared_helpers.rb:36
            (root) at /Library/JBoss/7.1/standalone/tmp/vfs/temp98901aca44abeed4/debug.war-e3df8d018be9c22e/WEB-INF/gems/gems/bundler-1.0.21/lib/bundler/setup.rb:1
           require at org/jruby/RubyKernel.java:1036
           require at /Library/JBoss/7.1/standalone/tmp/vfs/temp98901aca44abeed4/debug.war-e3df8d018be9c22e/WEB-INF/gems/gems/bundler-1.0.21/lib/bundler/setup.rb:59
            (root) at /Library/JBoss/7.1/standalone/tmp/vfs/temp98901aca44abeed4/debug.war-e3df8d018be9c22e/WEB-INF/config/boot.rb:6
           require at org/jruby/RubyKernel.java:1036
           require at /Library/JBoss/7.1/standalone/tmp/vfs/temp98901aca44abeed4/debug.war-e3df8d018be9c22e/WEB-INF/config/boot.rb:36
  load_environment at classpath:/jruby/rack/rails.rb:165
            to_app at classpath:/jruby/rack/rails.rb:172
               new at classpath:/jruby/rack/rails.rb:192
            (root) at <web.xml>:1
     instance_eval at org/jruby/RubyBasicObject.java:1726
        initialize at classpath:/vendor/rack-1.3.6/rack/builder.rb:51
            (root) at <web.xml>:1

--- RubyGems
Gem.dir: /Library/JBoss/7.1/standalone/tmp/vfs/temp98901aca44abeed4/debug.war-e3df8d018be9c22e/WEB-INF/gems
Gem.path:
/Library/JBoss/7.1/standalone/tmp/vfs/temp98901aca44abeed4/debug.war-e3df8d018be9c22e/WEB-INF/gems
Activated gems:
  bundler-1.0.21

--- Bundler
undefined method `bundle_path' for Bundler:Module

--- JRuby-Rack Config
compat_version = RUBY1_9
filter_adds_html = true
filter_verifies_resource = false
ignore_environment = false
initial_runtimes = 
jms_connection_factory = 
jms_jndi_properties = 
logger = org.jruby.rack.logging.ServletContextLogger@37e7de71
logger_class_name = servlet_context
logger_name = jruby.rack
maximum_runtimes = 
num_initializer_threads = 
rackup = 
rackup_path = 
rewindable = true
runtime_arguments = 
runtime_timeout_seconds = 
serial_initialization = false
servlet_context = org.apache.catalina.core.ApplicationContextFacade@400ee86

14:43:13,543 ERROR [org.apache.catalina.core.ContainerBase.[jboss.web].[default-host].[/debug]] (http--127.0.0.1-8080-2) Application Error: org.jruby.rack.RackInitializationException: method 'to_yaml' not defined in Object
	from classpath:/META-INF/jruby.home/lib/ruby/1.9/yaml.rb:32:in `(eval)'
	from org/jruby/RubyModule.java:2289:in `module_eval'
	from classpath:/META-INF/jruby.home/lib/ruby/1.9/yaml.rb:28:in `yamler='
	from classpath:/META-INF/jruby.home/lib/ruby/1.9/yaml.rb:50:in `(root)'
	from org/jruby/RubyKernel.java:1036:in `require'
	from classpath:/META-INF/jruby.home/lib/ruby/1.9/yaml.rb:36:in `require'
	from classpath:/META-INF/jruby.home/lib/ruby/site_ruby/1.8/rubygems.rb:662:in `load_yaml'
	from classpath:/META-INF/jruby.home/lib/ruby/site_ruby/1.8/rubygems/config_file.rb:235:in `load_file'
	from classpath:/META-INF/jruby.home/lib/ruby/site_ruby/1.8/rubygems/config_file.rb:178:in `initialize'
	from classpath:/META-INF/jruby.home/lib/ruby/site_ruby/1.8/rubygems.rb:361:in `configuration'
	from /Library/JBoss/7.1/standalone/tmp/vfs/temp98901aca44abeed4/debug.war-e3df8d018be9c22e/WEB-INF/gems/gems/bundler-1.0.21/lib/bundler/rubygems_integration.rb:25:in `configuration'
	from /Library/JBoss/7.1/standalone/tmp/vfs/temp98901aca44abeed4/debug.war-e3df8d018be9c22e/WEB-INF/gems/gems/bundler-1.0.21/lib/bundler/rubygems_integration.rb:5:in `initialize'
	from /Library/JBoss/7.1/standalone/tmp/vfs/temp98901aca44abeed4/debug.war-e3df8d018be9c22e/WEB-INF/gems/gems/bundler-1.0.21/lib/bundler/rubygems_integration.rb:335:in `Bundler'
	from /Library/JBoss/7.1/standalone/tmp/vfs/temp98901aca44abeed4/debug.war-e3df8d018be9c22e/WEB-INF/gems/gems/bundler-1.0.21/lib/bundler/rubygems_integration.rb:1:in `(root)'
	from org/jruby/RubyKernel.java:1036:in `require'
	from /Library/JBoss/7.1/standalone/tmp/vfs/temp98901aca44abeed4/debug.war-e3df8d018be9c22e/WEB-INF/gems/gems/bundler-1.0.21/lib/bundler/rubygems_integration.rb:36:in `require'
	from /Library/JBoss/7.1/standalone/tmp/vfs/temp98901aca44abeed4/debug.war-e3df8d018be9c22e/WEB-INF/gems/gems/bundler-1.0.21/lib/bundler/shared_helpers.rb:4:in `(root)'
	from org/jruby/RubyKernel.java:1036:in `require'
	from /Library/JBoss/7.1/standalone/tmp/vfs/temp98901aca44abeed4/debug.war-e3df8d018be9c22e/WEB-INF/gems/gems/bundler-1.0.21/lib/bundler/shared_helpers.rb:36:in `require'
	from /Library/JBoss/7.1/standalone/tmp/vfs/temp98901aca44abeed4/debug.war-e3df8d018be9c22e/WEB-INF/gems/gems/bundler-1.0.21/lib/bundler/setup.rb:1:in `(root)'
	from org/jruby/RubyKernel.java:1036:in `require'
	from /Library/JBoss/7.1/standalone/tmp/vfs/temp98901aca44abeed4/debug.war-e3df8d018be9c22e/WEB-INF/gems/gems/bundler-1.0.21/lib/bundler/setup.rb:59:in `require'
	from /Library/JBoss/7.1/standalone/tmp/vfs/temp98901aca44abeed4/debug.war-e3df8d018be9c22e/WEB-INF/config/boot.rb:6:in `(root)'
	from org/jruby/RubyKernel.java:1036:in `require'
	from /Library/JBoss/7.1/standalone/tmp/vfs/temp98901aca44abeed4/debug.war-e3df8d018be9c22e/WEB-INF/config/boot.rb:36:in `require'
	from classpath:/jruby/rack/rails.rb:165:in `load_environment'
	from classpath:/jruby/rack/rails.rb:172:in `to_app'
	from classpath:/jruby/rack/rails.rb:192:in `new'
	from <web.xml>:1:in `(root)'
	from org/jruby/RubyBasicObject.java:1726:in `instance_eval'
	from classpath:/vendor/rack-1.3.6/rack/builder.rb:51:in `initialize'
	from <web.xml>:1:in `(root)'

	at org.jruby.rack.DefaultRackApplicationFactory$4.init(DefaultRackApplicationFactory.java:206) [jruby-rack-1.1.3.jar:]
	at org.jruby.rack.DefaultRackApplicationFactory.getApplication(DefaultRackApplicationFactory.java:56) [jruby-rack-1.1.3.jar:]
	at org.jruby.rack.PoolingRackApplicationFactory.getApplication(PoolingRackApplicationFactory.java:95) [jruby-rack-1.1.3.jar:]
	at org.jruby.rack.DefaultRackDispatcher.getApplication(DefaultRackDispatcher.java:20) [jruby-rack-1.1.3.jar:]
	at org.jruby.rack.AbstractRackDispatcher.process(AbstractRackDispatcher.java:29) [jruby-rack-1.1.3.jar:]
	at org.jruby.rack.AbstractFilter.doFilter(AbstractFilter.java:31) [jruby-rack-1.1.3.jar:]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:280) [jbossweb-7.0.7.Final.jar:]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248) [jbossweb-7.0.7.Final.jar:]
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:275) [jbossweb-7.0.7.Final.jar:]
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:161) [jbossweb-7.0.7.Final.jar:]
	at org.jboss.as.web.security.SecurityContextAssociationValve.invoke(SecurityContextAssociationValve.java:151) [jboss-as-web-7.1.0.CR1b.jar:7.1.0.CR1b]
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:155) [jbossweb-7.0.7.Final.jar:]
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) [jbossweb-7.0.7.Final.jar:]
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) [jbossweb-7.0.7.Final.jar:]
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:362) [jbossweb-7.0.7.Final.jar:]
	at org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcessor.java:897) [jbossweb-7.0.7.Final.jar:]
	at org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:626) [jbossweb-7.0.7.Final.jar:]
	at org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:2033) [jbossweb-7.0.7.Final.jar:]
	at java.lang.Thread.run(Thread.java:680) [:1.6.0_29]
Caused by: org.jruby.exceptions.RaiseException: (NameError) method 'to_yaml' not defined in Object
	at org.jruby.RubyModule.remove_method(org/jruby/RubyModule.java:2316) [jruby-core-1.6.6.jar:]
	at #<Class:0x738694c5>.(eval)(classpath:/META-INF/jruby.home/lib/ruby/1.9/yaml.rb:32)	at org.jruby.RubyModule.module_eval(org/jruby/RubyModule.java:2289) [jruby-core-1.6.6.jar:]
	at YAML::EngineManager.yamler=(classpath:/META-INF/jruby.home/lib/ruby/1.9/yaml.rb:28)	at #<Class:0x16f32335>.(root)(classpath:/META-INF/jruby.home/lib/ruby/1.9/yaml.rb:50)	at org.jruby.RubyKernel.require(org/jruby/RubyKernel.java:1036) [jruby-core-1.6.6.jar:]
	at Kernel.require(classpath:/META-INF/jruby.home/lib/ruby/1.9/yaml.rb:36)	at #<Class:0x5c845ce9>.load_yaml(classpath:/META-INF/jruby.home/lib/ruby/site_ruby/1.8/rubygems.rb:662)	at Gem::ConfigFile.load_file(classpath:/META-INF/jruby.home/lib/ruby/site_ruby/1.8/rubygems/config_file.rb:235)	at Gem::ConfigFile.initialize(classpath:/META-INF/jruby.home/lib/ruby/site_ruby/1.8/rubygems/config_file.rb:178)	at #<Class:0x5c845ce9>.configuration(classpath:/META-INF/jruby.home/lib/ruby/site_ruby/1.8/rubygems.rb:361)	at Bundler::RubygemsIntegration.configuration(/Library/JBoss/7.1/standalone/tmp/vfs/temp98901aca44abeed4/debug.war-e3df8d018be9c22e/WEB-INF/gems/gems/bundler-1.0.21/lib/bundler/rubygems_integration.rb:25)	at Bundler::RubygemsIntegration.initialize(/Library/JBoss/7.1/standalone/tmp/vfs/temp98901aca44abeed4/debug.war-e3df8d018be9c22e/WEB-INF/gems/gems/bundler-1.0.21/lib/bundler/rubygems_integration.rb:5)	at Module.Bundler(/Library/JBoss/7.1/standalone/tmp/vfs/temp98901aca44abeed4/debug.war-e3df8d018be9c22e/WEB-INF/gems/gems/bundler-1.0.21/lib/bundler/rubygems_integration.rb:335)	at #<Class:0x16f32335>.(root)(/Library/JBoss/7.1/standalone/tmp/vfs/temp98901aca44abeed4/debug.war-e3df8d018be9c22e/WEB-INF/gems/gems/bundler-1.0.21/lib/bundler/rubygems_integration.rb:1)	at org.jruby.RubyKernel.require(org/jruby/RubyKernel.java:1036) [jruby-core-1.6.6.jar:]
	at Kernel.require(/Library/JBoss/7.1/standalone/tmp/vfs/temp98901aca44abeed4/debug.war-e3df8d018be9c22e/WEB-INF/gems/gems/bundler-1.0.21/lib/bundler/rubygems_integration.rb:36)	at #<Class:0x16f32335>.(root)(/Library/JBoss/7.1/standalone/tmp/vfs/temp98901aca44abeed4/debug.war-e3df8d018be9c22e/WEB-INF/gems/gems/bundler-1.0.21/lib/bundler/shared_helpers.rb:4)	at org.jruby.RubyKernel.require(org/jruby/RubyKernel.java:1036) [jruby-core-1.6.6.jar:]
	at Kernel.require(/Library/JBoss/7.1/standalone/tmp/vfs/temp98901aca44abeed4/debug.war-e3df8d018be9c22e/WEB-INF/gems/gems/bundler-1.0.21/lib/bundler/shared_helpers.rb:36)	at #<Class:0x16f32335>.(root)(/Library/JBoss/7.1/standalone/tmp/vfs/temp98901aca44abeed4/debug.war-e3df8d018be9c22e/WEB-INF/gems/gems/bundler-1.0.21/lib/bundler/setup.rb:1)	at org.jruby.RubyKernel.require(org/jruby/RubyKernel.java:1036) [jruby-core-1.6.6.jar:]
	at Kernel.require(/Library/JBoss/7.1/standalone/tmp/vfs/temp98901aca44abeed4/debug.war-e3df8d018be9c22e/WEB-INF/gems/gems/bundler-1.0.21/lib/bundler/setup.rb:59)	at #<Class:0x16f32335>.(root)(/Library/JBoss/7.1/standalone/tmp/vfs/temp98901aca44abeed4/debug.war-e3df8d018be9c22e/WEB-INF/config/boot.rb:6)	at org.jruby.RubyKernel.require(org/jruby/RubyKernel.java:1036) [jruby-core-1.6.6.jar:]
	at Kernel.require(/Library/JBoss/7.1/standalone/tmp/vfs/temp98901aca44abeed4/debug.war-e3df8d018be9c22e/WEB-INF/config/boot.rb:36)	at JRuby::Rack::RailsBooter::Rails3Environment.load_environment(classpath:/jruby/rack/rails.rb:165)	at JRuby::Rack::RailsBooter::Rails3Environment.to_app(classpath:/jruby/rack/rails.rb:172)	at #<Class:0x24d19465>.new(classpath:/jruby/rack/rails.rb:192)	at #<Class:0x7a3f2957>.(root)(<web.xml>:1)	at org.jruby.RubyBasicObject.instance_eval(org/jruby/RubyBasicObject.java:1726) [jruby-core-1.6.6.jar:]
	at Rack::Builder.initialize(classpath:/vendor/rack-1.3.6/rack/builder.rb:51)	at #<Class:0x16f32335>.(root)(<web.xml>:1)

reproduce-symptoms.sh

mkdir debug
cd debug
rvm install jruby-1.6.6
rvm use jruby-1.6.6@debug --create --rvmrc
echo "export JRUBY_OPTS=--1.9" >> .rvmrc
cd ..
cd debug
gem install rails
rails new .
rails generate controller Home
echo "<h1>hello</h1>" > app/views/home/index.html.erb
echo "root :to => 'home#index'" >> config/routes.rb 
rm public/index.html 
echo "gem 'warbler'" >> Gemfile
bundle install
warble config
emacs config/warble.rb 
rake db:create
cp db/development.sqlite3 db/production.sqlite3 
warble
mv debug.war $JBOSS_HOME/standalone/deployments

Would love suggestions for most fruitful path to debug this in a hurry:

• isolate my code... deploy a vanila rails app? (probably need a controller and a view)
• isolate JRuby... try again with jruby-head instead of 1.6.5.1
• isolate Warbler... try again with warbler-head?
• isolate JBoss... maybe try a different release or try Torquebox

I get the same symptoms using Java 6 and a vanilla rail3.1 app. The JBoss error log is identical (except for things like java6 paths instead of java7 and different tmp directories).

I suspect this is http://bugs.jruby.org/6384. Please try the newly released 1.6.6.

I got JBoss7.1 here in case that version matters.
http://download.jboss.org/jbossas/7.1/jboss-as-7.1.0.CR1b/jboss-as-7.1.0.CR1b.tar.gz

I did see these same symptoms with JBoss7.0, so I don't think it's JBoss.

These most recent versions of the server.log and my command history are for a freshly generated rails 3.2.1 app.

Here's a link to a previous revision of this gist which shows the same symptoms for jruby 1.6.5.1
https://gist.github.com/1701456/507622769a90ea1cf5b6bd8b70c256e224250ef2

Filed JRuby bug (http://jira.codehaus.org/browse/JRUBY-6397) but it appears to be a JRuby-rack issue (jruby/jruby-rack#89).