/usr/lib/one/ruby/OpenNebulaJSON/ is in ruby-opennebula 3.4.1-4.1ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/one/ruby/OpenNebulaJSON/AclJSON.rb
/usr/lib/one/ruby/OpenNebulaJSON/ClusterJSON.rb
/usr/lib/one/ruby/OpenNebulaJSON/DatastoreJSON.rb
/usr/lib/one/ruby/OpenNebulaJSON/GroupJSON.rb
/usr/lib/one/ruby/OpenNebulaJSON/HostJSON.rb
/usr/lib/one/ruby/OpenNebulaJSON/ImageJSON.rb
/usr/lib/one/ruby/OpenNebulaJSON/JSONUtils.rb
/usr/lib/one/ruby/OpenNebulaJSON/PoolJSON.rb
/usr/lib/one/ruby/OpenNebulaJSON/TemplateJSON.rb
/usr/lib/one/ruby/OpenNebulaJSON/UserJSON.rb
/usr/lib/one/ruby/OpenNebulaJSON/VirtualMachineJSON.rb
/usr/lib/one/ruby/OpenNebulaJSON/VirtualNetworkJSON.rb