Multipart upload thru J2Me fail

Hi, I am developing a j2me application to upload photos to a rail web server.

I use multipart upload. My code work fine with PHP web server(when i upload to php page).

But when i upload it to my real Rail Server, it show errors. I guess it's because of i don't have Content-length header in my POST request.

I use the following j2me code for my upload: http://wiki.forum.nokia.com/index.php/HTTP_Post_multipart_file_upload_in_Java_ME

Please help.

Here's the error code it produced from WebRick /!\ FAILSAFE /!\ Tue Dec 14 02:11:10 +0700 2010   Status: 500 Internal Server Error   negative length -29 given     E:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.2/lib/action_controller/rewindable_input.rb:15:in `read'     E:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.2/lib/action_controller/rewindable_input.rb:15:in `__send__'     E:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.2/lib/action_controller/rewindable_input.rb:15:in `method_missing'     E:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.2/lib/action_controller/vendor/rack-1.0/rack/utils.rb:344:in `parse_multipart'     E:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.2/lib/action_controller/vendor/rack-1.0/rack/utils.rb:317:in `loop'     E:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.2/lib/action_controller/vendor/rack-1.0/rack/utils.rb:317:in `parse_multipart'     E:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.2/lib/action_controller/vendor/rack-1.0/rack/request.rb:124:in `POST'     E:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.2/lib/action_controller/vendor/rack-1.0/rack/methodoverride.rb:15:in `call'     E:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.2/lib/action_controller/params_parser.rb:15:in `call'     E:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.2/lib/action_controller/rewindable_input.rb:25:in `call'     E:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.2/lib/action_controller/session/cookie_store.rb:93:in `call'     E:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.2/lib/action_controller/reloader.rb:9:in `call'     E:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.2/lib/action_controller/failsafe.rb:11:in `call'     E:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.2/lib/action_controller/vendor/rack-1.0/rack/lock.rb:11:in `call'     E:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.2/lib/action_controller/vendor/rack-1.0/rack/lock.rb:11:in `synchronize'     E:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.2/lib/action_controller/vendor/rack-1.0/rack/lock.rb:11:in `call'     E:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.2/lib/action_controller/dispatcher.rb:106:in `call'     E:/Ruby/lib/ruby/gems/1.8/gems/rails-2.3.2/lib/rails/rack/static.rb:31:in `call'     E:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.2/lib/action_controller/vendor/rack-1.0/rack/urlmap.rb:46:in `call'     E:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.2/lib/action_controller/vendor/rack-1.0/rack/urlmap.rb:40:in `each'     E:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.2/lib/action_controller/vendor/rack-1.0/rack/urlmap.rb:40:in `call'     E:/Ruby/lib/ruby/gems/1.8/gems/rails-2.3.2/lib/rails/rack/log_tailer.rb:17:in `call'     E:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.2/lib/action_controller/vendor/rack-1.0/rack/content_length.rb:13:in `call'     E:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.2/lib/action_controller/vendor/rack-1.0/rack/handler/webrick.rb:46:in `service'     E:/Ruby/lib/ruby/1.8/webrick/httpserver.rb:104:in `service'     E:/Ruby/lib/ruby/1.8/webrick/httpserver.rb:65:in `run'     E:/Ruby/lib/ruby/1.8/webrick/server.rb:173:in `start_thread'     E:/Ruby/lib/ruby/1.8/webrick/server.rb:162:in `start'     E:/Ruby/lib/ruby/1.8/webrick/server.rb:162:in `start_thread'     E:/Ruby/lib/ruby/1.8/webrick/server.rb:95:in `start'     E:/Ruby/lib/ruby/1.8/webrick/server.rb:92:in `each'     E:/Ruby/lib/ruby/1.8/webrick/server.rb:92:in `start'     E:/Ruby/lib/ruby/1.8/webrick/server.rb:23:in `start'     E:/Ruby/lib/ruby/1.8/webrick/server.rb:82:in `start'     E:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.2/lib/action_controller/vendor/rack-1.0/rack/handler/webrick.rb:13:in `run'     E:/Ruby/lib/ruby/gems/1.8/gems/rails-2.3.2/lib/commands/server.rb:111     E:/Ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require'     E:/Ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `require'     script/server:3