JSON parser incompatibility between 1.9.3p194 and 1.9.3p286

I found strange problem with JSON parser under 1.9.3 MRI ruby when you try to create a new Machine.

Requirements:

~/code/core/server › rbenv versions

• 1.9.3-p194 (set by /home/mfojtik/code/core/server/.rbenv-version)
  1.9.3-p286

How to reproduce:

1. Use 1.9.3p194, start Deltacloud API with CIMI frontend, then:

$ curl -v -X POST --user 'mockuser:mockpassword' -H 'Content-Type: application/json' -d @machine.json http://localhost:3001/cimi/machines

Results: Everything works perfectly, Machine is created and JSON is returned to console.

2. Use 1.9.3p286, start Deltacloud API with CIMI frontend, then:

$ curl -v -X POST --user 'mockuser:mockpassword' -H 'Content-Type: application/json' -d @machine.json http://localhost:3001/cimi/machines

Result:

E, 2012-11-28T11:48:55.665131 #11346 ERROR – 500: [TypeError] wrong argument type JSON::Pure::Generator::State (expected Data)

/home/mfojtik/.rbenv/versions/1.9.3-p286/lib/ruby/gems/1.9.1/gems/json_pure-1.7.5/lib/json/pure/generator.rb:316:in `to_json'
/home/mfojtik/.rbenv/versions/1.9.3-p286/lib/ruby/gems/1.9.1/gems/json_pure-1.7.5/lib/json/pure/generator.rb:316:in `block in json_transform'
/home/mfojtik/.rbenv/versions/1.9.3-p286/lib/ruby/gems/1.9.1/gems/json_pure-1.7.5/lib/json/pure/generator.rb:309:in `each'
/home/mfojtik/.rbenv/versions/1.9.3-p286/lib/ruby/gems/1.9.1/gems/json_pure-1.7.5/lib/json/pure/generator.rb:309:in `json_transform'
/home/mfojtik/.rbenv/versions/1.9.3-p286/lib/ruby/gems/1.9.1/gems/json_pure-1.7.5/lib/json/pure/generator.rb:291:in `to_json'
/home/mfojtik/.rbenv/versions/1.9.3-p286/lib/ruby/gems/1.9.1/gems/json_pure-1.7.5/lib/json/pure/generator.rb:257:in `generate'
/home/mfojtik/.rbenv/versions/1.9.3-p286/lib/ruby/1.9.1/json/common.rb:216:in `generate'
/home/mfojtik/code/core/server/lib/cimi/models/base.rb:232:in `to_json'
/home/mfojtik/code/core/server/lib/cimi/models/base.rb:243:in `to_json'
/home/mfojtik/code/core/server/lib/cimi/collections/machines.rb:58:in `block (5 levels) in <class:Machines>'

The Machine objects looks like this:

#<CIMI::Model::Machine:0x000000044423f8 @attribute_values={:id=>"http://localhost:3001/cimi/machines/inst9", :name=>"myMachine1", :description=>"My very first machine", :created=>"2012-11-28T11:48:55+01:00", :property=>

{"foo"=>"bar", "life"=>"is life", "machine_image"=>"http://localhost:3001/cimi/machine_images/img1", "credential"=>"http://localhost:3001/cimi/credentials"}

, :state=>"STARTED", :cpu=>"1", :memory=>1781760, :disks=>#<Class::DiskCollection:0x00000004441c28 @attribute_values={:id=>nil, :href=>"http://localhost:3001/cimi/machines/inst9/disks", :count=>nil, :disks=>[], :operations=>nil}>, :volumes=>#<Class::MachineVolumeCollection:0x000000044416d8 @attribute_values={:id=>nil, :href=>"http://localhost:3001/cimi/machines/inst9/volumes", :count=>nil, :machine_volumes=>[], :operations=>nil}>, :meters=>nil, :operations=>[{:href=>"http://localhost:3001/cimi/machines/inst9/restart", :rel=>"http://schemas.dmtf.org/cimi/1/action/restart"}, {:href=>"http://localhost:3001/cimi/machines/inst9/stop", :rel=>"http://schemas.dmtf.org/cimi/1/action/stop"}, {:href=>"http://localhost:3001/cimi/machine_images", :rel=>"http://schemas.dmtf.org/cimi/1/action/capture"}]}>

(nothing suspicious).

I think this is caused by something they added to p286, but I was unable to track the problem down.

NOTE: This bug is affecting *ALL* JSON output, not just create.

PS: The @machine.json file:

{
"resourceURI": "http://schemas.dmtf.org/cimi/1/MachineCreate",
"name": "myMachine1",
"description": "My very first machine",
"properties":

{ "foo": "bar", "life": "is life" }

,
"machineTemplate": {
"machineConfig":

{ "href": " http://localhost:3001/cimi/machine_configurations/m1-small" }

,
"machineImage":

{ "href": " http://localhost:3001/cimi/machine_images/img1" }

}
}