My warble.rb and Weblogic 11g stack trace

stacktrace.txt

<Sep 14, 2012 12:55:25 PM CDT> <Error> <ServletContext-/ruby-px> <BEA-000000> <ERROR: application error
org.jruby.rack.RackInitializationException: can't dup NilClass
	from classpath:/META-INF/jruby.home/lib/ruby/1.9/pathname.rb:215:in `initialize'
	from classpath:/jruby/rack/rails/railtie.rb:16:in `Railtie'
	from org/jruby/RubyProc.java:258:in `call'
	from /home/scott/wls_domains/PartnersXpress/servers/myserver/tmp/_WL_user/ruby-px/iikl7j/war/WEB-INF/gems/gems/activesupport-3.2.8/lib/active_support/lazy_load_hooks.rb:34:in `execute_hook'
	from /home/scott/wls_domains/PartnersXpress/servers/myserver/tmp/_WL_user/ruby-px/iikl7j/war/WEB-INF/gems/gems/activesupport-3.2.8/lib/active_support/lazy_load_hooks.rb:43:in `run_load_hooks'
	from org/jruby/RubyArray.java:1615:in `each'
	from /home/scott/wls_domains/PartnersXpress/servers/myserver/tmp/_WL_user/ruby-px/iikl7j/war/WEB-INF/gems/gems/activesupport-3.2.8/lib/active_support/lazy_load_hooks.rb:42:in `run_load_hooks'
	from /home/scott/wls_domains/PartnersXpress/servers/myserver/tmp/_WL_user/ruby-px/iikl7j/war/WEB-INF/gems/gems/railties-3.2.8/lib/rails/application.rb:67:in `inherited'
	from /home/scott/wls_domains/PartnersXpress/servers/myserver/tmp/_WL_user/ruby-px/iikl7j/war/WEB-INF/config/application.rb:13:in `RubyPx'
	from /home/scott/wls_domains/PartnersXpress/servers/myserver/tmp/_WL_user/ruby-px/iikl7j/war/WEB-INF/config/application.rb:12:in `(root)'
	from org/jruby/RubyKernel.java:1042:in `require'
	from /home/scott/wls_domains/PartnersXpress/servers/myserver/tmp/_WL_user/ruby-px/iikl7j/war/WEB-INF/config/application.rb:2:in `(root)'
	from org/jruby/RubyKernel.java:1042:in `require'
	from /home/scott/wls_domains/PartnersXpress/servers/myserver/tmp/_WL_user/ruby-px/iikl7j/war/WEB-INF/config/environment.rb:23:in `load_environment'
	from classpath:/jruby/rack/rails_booter.rb:65:in `load_environment'
	from <script>:1:in `(root)'

	at org.jruby.rack.DefaultRackApplicationFactory$4.init(DefaultRackApplicationFactory.java:231)
	at org.jruby.rack.DefaultRackApplicationFactory.getApplication(DefaultRackApplicationFactory.java:58)
	at org.jruby.rack.PoolingRackApplicationFactory.createApplication(PoolingRackApplicationFactory.java:323)
	at org.jruby.rack.PoolingRackApplicationFactory.getApplication(PoolingRackApplicationFactory.java:171)
	at org.jruby.rack.DefaultRackDispatcher.getApplication(DefaultRackDispatcher.java:27)
	Truncated. see log file for complete stacktrace
Caused By: org.jruby.exceptions.RaiseException: (TypeError) can't dup NilClass
	at org.jruby.RubyKernel.dup(org/jruby/RubyKernel.java:1911)
	at Pathname.initialize(classpath:/META-INF/jruby.home/lib/ruby/1.9/pathname.rb:215)
	at (Anonymous).Railtie(classpath:/jruby/rack/rails/railtie.rb:16)
	at org.jruby.RubyProc.call(org/jruby/RubyProc.java:258)
	at (Anonymous).execute_hook(/home/scott/wls_domains/PartnersXpress/servers/myserver/tmp/_WL_user/ruby-px/iikl7j/war/WEB-INF/gems/gems/activesupport-3.2.8/lib/active_support/lazy_load_hooks.rb:34)
	Truncated. see log file for complete stacktrace
> 
<Sep 14, 2012 12:55:30 PM CDT> <Error> <ServletContext-/ruby-px> <BEA-000000> <ERROR: couldn't handle error
org.jruby.exceptions.RaiseException: (TypeError) can't convert nil into String
	at org.jruby.RubyFile.join(org/jruby/RubyFile.java:1496)
	at org.jruby.RubyFile.join(org/jruby/RubyFile.java:1518)
	at File._call(/home/scott/wls_domains/PartnersXpress/servers/myserver/tmp/_WL_user/ruby-px/iikl7j/war/WEB-INF/gems/gems/rack-1.4.1/lib/rack/file.rb:55)
	at File.call(/home/scott/wls_domains/PartnersXpress/servers/myserver/tmp/_WL_user/ruby-px/iikl7j/war/WEB-INF/gems/gems/rack-1.4.1/lib/rack/file.rb:30)
	at Errors.response_content(classpath:/jruby/rack/errors.rb:37)
	Truncated. see log file for complete stacktrace

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")
   config.gems += ["activerecord-jdbc-adapter", "jruby-openssl", "railties", "activesupport", "rack"]

  # 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"]
  config.webinf_files += FileList["config/weblogic.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"]

  # Embedded webserver to use with the 'executable' feature. Currently supported
  # webservers are:
  # * <tt>winstone</tt> (default) - Winstone 0.9.10 from sourceforge
  # * <tt>jenkins-ci.winstone</tt> - Improved Winstone from Jenkins CI
  # * <tt>jetty</tt> - Embedded Jetty from Eclipse
  # config.webserver = 'jetty'

  # 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!
  # If you're using threadsafe! mode, you probably don't want to set these values,
  # since 1 runtime(default for threadsafe mode) will be enough.
  # config.webxml.jruby.min.runtimes = 2
  # config.webxml.jruby.max.runtimes = 4

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

end

weblogic.xml

<weblogic-web-app xmlns="http://www.bea.com/ns/weblogic/weblogic-web-app">
  <container-descriptor>
    <prefer-web-inf-classes>true</prefer-web-inf-classes>
  </container-descriptor>
</weblogic-web-app>