since im trying to run my aplication on tomcat,
i made some chages on the envionment.rb, i add 

if RUBY_PLATFORM =~ /java/
  require 'rubygems'
  RAILS_CONNECTION_ADAPTERS = %w(jdbc)
end

before:
Rails::Initializer.run do |config|

i also download the mysql-connector-java-5.0.7-bin.jar and i put it in my
%JRUBY_HOME%lib directory.

in the database.yml file i changed the connection to:
development:
  adapter: jdbc
  driver: com.mysql.jdbc.Driver
  url: jdbc:mysql://localhost:3306/database_development
  username: root
  password: password

when i start my webbrick to make the connection using jdbc i have this
error:

=> Booting WEBrick...
C:/jruby-1.0/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/connection_adapters/abstract/connection_specification.rb:204:in
`establish_connection': development database is not configured
(ActiveRecord::AdapterNotSpecified)        from
C:/jruby-1.0/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/connection_adapters/abstract/connection_specification.rb:195:in
`establish_connection'        
        from
C:/jruby-1.0/lib/ruby/gems/1.8/gems/rails-1.2.3/lib/initializer.rb:229:in
`initialize_database'
        from
C:/jruby-1.0/lib/ruby/gems/1.8/gems/rails-1.2.3/lib/initializer.rb:88:in
`process'
        from
C:/jruby-1.0/lib/ruby/gems/1.8/gems/rails-1.2.3/lib/initializer.rb:43:in
`send'
        from
C:/jruby-1.0/lib/ruby/gems/1.8/gems/rails-1.2.3/lib/initializer.rb:43:in
`run'
        from ./script/../config/../config/environment.rb:51
        from
C:/jruby-1.0/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in
`require'
        from
C:/jruby-1.0/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in
`require'
        from
C:/jruby-1.0/lib/ruby/gems/1.8/gems/rails-1.2.3/lib/commands/servers/webrick.rb:52
        from
C:/jruby-1.0/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in
`require'
        from
C:/jruby-1.0/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in
`require'
        from
C:/jruby-1.0/lib/ruby/gems/1.8/gems/rails-1.2.3/lib/commands/server.rb:39
        from
C:/jruby-1.0/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in
`require'
        from
C:/jruby-1.0/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in
`require'
        from :-1


Any clue how to fix this?
Thank yuo in advance

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