remove JSON gem usage

should fully convert to using ffi-yajl

there are still issues with JSON gem monkeypatching interacting with
chef-zero and the spec tests so we keep the requires here for the
json gem and the ffi_yajl/json_gem here.  when ohai and chef-zero are
fixed, we an just require ffi_yajl.

31 files changed, 92 insertions, 78 deletions

diff --git a/lib/chef/api_client.rb b/lib/chef/api_client.rb
index 7b7fd99ff7..334fb23f38 100644
--- a/lib/chef/api_client.rb
+++ b/lib/chef/api_client.rb
@@ -121,7 +121,7 @@ class Chef
     #
     # @return [String] the JSON string.
     def to_json(*a)
-      to_hash.to_json(*a)
+      Chef::JSONCompat.to_json(to_hash, *a)
     end
 
     def self.json_create(o)
diff --git a/lib/chef/chef_fs/chef_fs_data_store.rb b/lib/chef/chef_fs/chef_fs_data_store.rb
index b84fc1945d..b2435d8201 100644
--- a/lib/chef/chef_fs/chef_fs_data_store.rb
+++ b/lib/chef/chef_fs/chef_fs_data_store.rb
@@ -269,7 +269,7 @@ class Chef
 
         # Create a little Chef::ChefFS memory filesystem with the data
         cookbook_fs = Chef::ChefFS::FileSystem::MemoryRoot.new('uploading')
-        cookbook = JSON.parse(data, :create_additions => false)
+        cookbook = Chef::JSONCompat.parse(data)
         cookbook.each_pair do |key, value|
           if value.is_a?(Array)
             value.each do |file|
diff --git a/lib/chef/chef_fs/command_line.rb b/lib/chef/chef_fs/command_line.rb
index 967c59ecae..43e8b276e0 100644
--- a/lib/chef/chef_fs/command_line.rb
+++ b/lib/chef/chef_fs/command_line.rb
@@ -251,7 +251,7 @@ class Chef
       end
 
       def self.canonicalize_json(json_text)
-        parsed_json = JSON.parse(json_text, :create_additions => false)
+        parsed_json = Chef::JSONCompat.parse(json_text)
         sorted_json = sort_keys(parsed_json)
         JSON.pretty_generate(sorted_json)
       end
diff --git a/lib/chef/chef_fs/file_system/acl_entry.rb b/lib/chef/chef_fs/file_system/acl_entry.rb
index 8edc02d5c5..1bd03a6095 100644
--- a/lib/chef/chef_fs/file_system/acl_entry.rb
+++ b/lib/chef/chef_fs/file_system/acl_entry.rb
@@ -37,7 +37,7 @@ class Chef
 
         def write(file_contents)
           # ACL writes are fun.
-          acls = data_handler.normalize(JSON.parse(file_contents, :create_additions => false), self)
+          acls = data_handler.normalize(Chef::JSONCompat.parse(file_contents), self)
           PERMISSIONS.each do |permission|
             begin
               rest.put("#{api_path}/#{permission}", { permission => acls[permission] })
diff --git a/lib/chef/chef_fs/file_system/chef_repository_file_system_entry.rb b/lib/chef/chef_fs/file_system/chef_repository_file_system_entry.rb
index 3d3f58201e..6ccdc2cf5f 100644
--- a/lib/chef/chef_fs/file_system/chef_repository_file_system_entry.rb
+++ b/lib/chef/chef_fs/file_system/chef_repository_file_system_entry.rb
@@ -41,7 +41,7 @@ class Chef
 
         def chef_object
           begin
-            return data_handler.chef_object(JSON.parse(read, :create_additions => false))
+            return data_handler.chef_object(Chef::JSONCompat.parse(read))
           rescue
             Chef::Log.error("Could not read #{path_for_printing} into a Chef object: #{$!}")
           end
@@ -60,10 +60,10 @@ class Chef
         end
 
         def minimize(file_contents, entry)
-          object = JSONCompat.from_json(file_contents, :create_additions => false)
+          object = Chef::JSONCompat.from_json(file_contents)
           object = data_handler.normalize(object, entry)
           object = data_handler.minimize(object, entry)
-          JSONCompat.to_json_pretty(object)
+          Chef::JSONCompat.to_json_pretty(object)
         end
 
         def children
diff --git a/lib/chef/chef_fs/file_system/rest_list_dir.rb b/lib/chef/chef_fs/file_system/rest_list_dir.rb
index b7ee51d284..672fa444f1 100644
--- a/lib/chef/chef_fs/file_system/rest_list_dir.rb
+++ b/lib/chef/chef_fs/file_system/rest_list_dir.rb
@@ -61,8 +61,8 @@ class Chef
 
         def create_child(name, file_contents)
           begin
-            object = JSON.parse(file_contents, :create_additions => false)
-          rescue JSON::ParserError => e
+            object = Chef::JSONCompat.parse(file_contents)
+          rescue Chef::Exceptions::JSON::ParseError => e
             raise Chef::ChefFS::FileSystem::OperationFailedError.new(:create_child, self, e), "Parse error reading JSON creating child '#{name}': #{e}"
           end
 
diff --git a/lib/chef/chef_fs/file_system/rest_list_entry.rb b/lib/chef/chef_fs/file_system/rest_list_entry.rb
index 0d5557de1d..67252a6f2f 100644
--- a/lib/chef/chef_fs/file_system/rest_list_entry.rb
+++ b/lib/chef/chef_fs/file_system/rest_list_entry.rb
@@ -128,8 +128,8 @@ class Chef
           value = minimize_value(value)
           value_json = Chef::JSONCompat.to_json_pretty(value)
           begin
-            other_value = JSON.parse(other_value_json, :create_additions => false)
-          rescue JSON::ParserError => e
+            other_value = Chef::JSONCompat.parse(other_value_json)
+          rescue Chef::Exceptions::JSON::ParseError => e
             Chef::Log.warn("Parse error reading #{other.path_for_printing} as JSON: #{e}")
             return [ nil, value_json, other_value_json ]
           end
@@ -145,8 +145,8 @@ class Chef
 
         def write(file_contents)
           begin
-            object = JSON.parse(file_contents, :create_additions => false)
-          rescue JSON::ParserError => e
+            object = Chef::JSONCompat.parse(file_contents)
+          rescue Chef::Exceptions::JSON::ParseError => e
             raise Chef::ChefFS::FileSystem::OperationFailedError.new(:write, self, e), "Parse error reading JSON: #{e}"
           end
 
diff --git a/lib/chef/config_fetcher.rb b/lib/chef/config_fetcher.rb
index c1fd262656..1d0693eaa2 100644
--- a/lib/chef/config_fetcher.rb
+++ b/lib/chef/config_fetcher.rb
@@ -18,7 +18,7 @@ class Chef
       config_data = read_config
       begin
         Chef::JSONCompat.from_json(config_data)
-      rescue FFI_Yajl::ParseError => error
+      rescue Chef::Exceptions::JSON::ParseError => error
         Chef::Application.fatal!("Could not parse the provided JSON file (#{config_location}): " + error.message, 2)
       end
     end
diff --git a/lib/chef/cookbook/cookbook_version_loader.rb b/lib/chef/cookbook/cookbook_version_loader.rb
index 4e92b74ae9..fac8c80993 100644
--- a/lib/chef/cookbook/cookbook_version_loader.rb
+++ b/lib/chef/cookbook/cookbook_version_loader.rb
@@ -170,7 +170,7 @@ class Chef
       def apply_ruby_metadata(file)
         begin
           @metadata.from_file(file)
-        rescue JSON::ParserError
+        rescue Chef::Exceptions::JSON::ParseError
           Chef::Log.error("Error evaluating metadata.rb for #@cookbook_name in " + file)
           raise
         end
@@ -179,7 +179,7 @@ class Chef
       def apply_json_metadata(file)
         begin
           @metadata.from_json(IO.read(file))
-        rescue JSON::ParserError
+        rescue Chef::Exceptions::JSON::ParseError
           Chef::Log.error("Couldn't parse cookbook metadata JSON for #@cookbook_name in " + file)
           raise
         end
@@ -189,7 +189,7 @@ class Chef
         begin
           data = Chef::JSONCompat.from_json(IO.read(file), :create_additions => false)
           @metadata.from_hash(data['metadata'])
-        rescue JSON::ParserError
+        rescue Chef::Exceptions::JSON::ParseError
           Chef::Log.error("Couldn't parse cookbook metadata JSON for #@cookbook_name in " + file)
           raise
         end
@@ -200,7 +200,7 @@ class Chef
           begin
             data = Chef::JSONCompat.from_json(IO.read(uploaded_cookbook_version_file), :create_additions => false)
             @frozen = data['frozen?']
-          rescue JSON::ParserError
+          rescue Chef::Exceptions::JSON::ParseError
             Chef::Log.error("Couldn't parse cookbook metadata JSON for #@cookbook_name in #{uploaded_cookbook_version_file}")
             raise
           end
diff --git a/lib/chef/cookbook/metadata.rb b/lib/chef/cookbook/metadata.rb
index 32574c75e2..8d3f8b84aa 100644
--- a/lib/chef/cookbook/metadata.rb
+++ b/lib/chef/cookbook/metadata.rb
@@ -24,6 +24,7 @@ require 'chef/mixin/params_validate'
 require 'chef/log'
 require 'chef/version_class'
 require 'chef/version_constraint'
+require 'chef/json_compat'
 
 class Chef
   class Cookbook
@@ -441,7 +442,7 @@ class Chef
       end
 
       def to_json(*a)
-        self.to_hash.to_json(*a)
+        Chef::JSONCompat.to_json(to_hash, *a)
       end
 
       def self.from_hash(o)
@@ -651,6 +652,5 @@ INVALID
       end
     end
 
-
   end
 end
diff --git a/lib/chef/cookbook_version.rb b/lib/chef/cookbook_version.rb
index 778a6043bf..4482f778c1 100644
--- a/lib/chef/cookbook_version.rb
+++ b/lib/chef/cookbook_version.rb
@@ -405,7 +405,6 @@ class Chef
       records_by_pref[best_pref]
     end
 
-
     # Given a node, segment and path (filename or directory name),
     # return the priority-ordered list of preference locations to
     # look.
@@ -458,9 +457,9 @@ class Chef
     end
 
     def to_json(*a)
-      result = self.to_hash
+      result = to_hash
       result['json_class'] = self.class.name
-      result.to_json(*a)
+      Chef::JSONCompat.to_json(result, *a)
     end
 
     def self.json_create(o)
diff --git a/lib/chef/data_bag.rb b/lib/chef/data_bag.rb
index 1133aa3e73..99808d0609 100644
--- a/lib/chef/data_bag.rb
+++ b/lib/chef/data_bag.rb
@@ -54,16 +54,16 @@ class Chef
 
     def to_hash
       result = {
-        "name" => @name,
+        'name'       => @name,
         'json_class' => self.class.name,
-        "chef_type" => "data_bag",
+        'chef_type'  => 'data_bag',
       }
       result
     end
 
     # Serialize this object as a hash
     def to_json(*a)
-      to_hash.to_json(*a)
+      Chef::JSONCompat.to_json(to_hash, *a)
     end
 
     def chef_server_rest
@@ -164,4 +164,3 @@ class Chef
 
   end
 end
-
diff --git a/lib/chef/data_bag_item.rb b/lib/chef/data_bag_item.rb
index 07dd15a1dc..6f0ae65478 100644
--- a/lib/chef/data_bag_item.rb
+++ b/lib/chef/data_bag_item.rb
@@ -112,13 +112,13 @@ class Chef
     # Serialize this object as a hash
     def to_json(*a)
       result = {
-        "name" => self.object_name,
+        "name"       => object_name,
         "json_class" => self.class.name,
-        "chef_type" => "data_bag_item",
-        "data_bag" => self.data_bag,
-        "raw_data" => self.raw_data
+        "chef_type"  => "data_bag_item",
+        "data_bag"   => data_bag,
+        "raw_data"   => raw_data
       }
-      result.to_json(*a)
+      Chef::JSONCompat.to_json(result, *a)
     end
 
     def self.from_hash(h)
@@ -210,5 +210,3 @@ class Chef
 
   end
 end
-
-
diff --git a/lib/chef/encrypted_data_bag_item/decryptor.rb b/lib/chef/encrypted_data_bag_item/decryptor.rb
index 0fe323870b..97a166b932 100644
--- a/lib/chef/encrypted_data_bag_item/decryptor.rb
+++ b/lib/chef/encrypted_data_bag_item/decryptor.rb
@@ -17,7 +17,7 @@
 #
 
 require 'yaml'
-require 'ffi_yajl'
+require 'chef/json_compat'
 require 'openssl'
 require 'base64'
 require 'digest/sha2'
@@ -121,8 +121,8 @@ class Chef::EncryptedDataBagItem
       end
 
       def for_decrypted_item
-        FFI_Yajl::Parser.parse(decrypted_data)["json_wrapper"]
-      rescue FFI_Yajl::ParseError
+        Chef::JSONCompat.parse(decrypted_data)["json_wrapper"]
+      rescue Chef::Exceptions::JSON::ParseError
         # convert to a DecryptionFailure error because the most likely scenario
         # here is that the decryption step was unsuccessful but returned bad
         # data rather than raising an error.
@@ -197,7 +197,6 @@ class Chef::EncryptedDataBagItem
         assert_aead_requirements_met!(algorithm)
       end
 
-
       # Returns the used decryption algorithm
       def algorithm
         AEAD_ALGORITHM
diff --git a/lib/chef/environment.rb b/lib/chef/environment.rb
index 5c719ca285..33dfb52403 100644
--- a/lib/chef/environment.rb
+++ b/lib/chef/environment.rb
@@ -129,7 +129,7 @@ class Chef
     end
 
     def to_json(*a)
-      to_hash.to_json(*a)
+      Chef::JSONCompat.to_json(to_hash, *a)
     end
 
     def update_from!(o)
@@ -140,7 +140,6 @@ class Chef
       self
     end
 
-
     def update_attributes_from_params(params)
       unless params[:default_attributes].nil? || params[:default_attributes].size == 0
         default_attributes(Chef::JSONCompat.from_json(params[:default_attributes]))
@@ -213,7 +212,6 @@ class Chef
       end
     end
 
-
     def self.json_create(o)
       environment = new
       environment.name(o["name"])
diff --git a/lib/chef/exceptions.rb b/lib/chef/exceptions.rb
index 26d9f612f1..bd6d887884 100644
--- a/lib/chef/exceptions.rb
+++ b/lib/chef/exceptions.rb
@@ -195,7 +195,6 @@ class Chef
         end
       end
 
-
     end
     # Exception class for collecting multiple failures. Used when running
     # delayed notifications so that chef can process each delayed
@@ -263,7 +262,7 @@ class Chef
             "non_existent_cookbooks" => non_existent_cookbooks,
             "cookbooks_with_no_versions" => cookbooks_with_no_matching_versions
           }
-          result.to_json(*a)
+          Chef::JSONCompat.to_json(result, *a)
         end
       end
 
@@ -298,7 +297,7 @@ class Chef
             "non_existent_cookbooks" => non_existent_cookbooks,
             "most_constrained_cookbooks" => most_constrained_cookbooks
           }
-          result.to_json(*a)
+          Chef::JSONCompat.to_json(result, *a)
         end
       end
 
@@ -339,5 +338,11 @@ class Chef
     end
 
     class BadProxyURI < RuntimeError; end
+
+    # Raised by Chef::JSONCompat
+    class JSON
+      class EncodeError < RuntimeError; end
+      class ParseError < RuntimeError; end
+    end
   end
 end
diff --git a/lib/chef/handler/json_file.rb b/lib/chef/handler/json_file.rb
index 3473db1838..405c91795e 100644
--- a/lib/chef/handler/json_file.rb
+++ b/lib/chef/handler/json_file.rb
@@ -58,7 +58,6 @@ class Chef
         end
       end
 
-
     end
   end
 end
diff --git a/lib/chef/json_compat.rb b/lib/chef/json_compat.rb
index 0f182508b9..ddccfe5fcb 100644
--- a/lib/chef/json_compat.rb
+++ b/lib/chef/json_compat.rb
@@ -20,6 +20,7 @@
 require 'ffi_yajl'
 require 'json'
 require 'ffi_yajl/json_gem'  # XXX: parts of chef require JSON gem's Hash#to_json monkeypatch
+require 'chef/exceptions'
 
 class Chef
   class JSONCompat
@@ -41,15 +42,24 @@ class Chef
 
     class <<self
 
+      # API to use to avoid create_addtions
+      def parse(source, opts = {})
+        begin
+          FFI_Yajl::Parser.parse(source, opts)
+        rescue FFI_Yajl::ParseError => e
+          raise Chef::Exceptions::JSON::ParseError, e.message
+        end
+      end
+
       # Just call the JSON gem's parse method with a modified :max_nesting field
       def from_json(source, opts = {})
-        obj = ::FFI_Yajl::Parser.parse(source)
+        obj = parse(source, opts)
 
         # JSON gem requires top level object to be a Hash or Array (otherwise
         # you get the "must contain two octets" error). Yajl doesn't impose the
         # same limitation. For compatibility, we re-impose this condition.
         unless obj.kind_of?(Hash) or obj.kind_of?(Array)
-          raise JSON::ParserError, "Top level JSON object must be a Hash or Array. (actual: #{obj.class})"
+          raise Chef::Exceptions::JSON::ParseError, "Top level JSON object must be a Hash or Array. (actual: #{obj.class})"
         end
 
         # The old default in the json gem (which we are mimicing because we
@@ -89,14 +99,21 @@ class Chef
       end
 
       def to_json(obj, opts = nil)
-        obj.to_json(opts)
+        begin
+          FFI_Yajl::Encoder.encode(obj, opts)
+        rescue FFI_Yajl::EndodeError => e
+          raise Chef::Exceptions::JSON::EncodeError, e.message
+        end
       end
 
       def to_json_pretty(obj, opts = nil)
-        ::JSON.pretty_generate(obj, opts)
+        opts ||= {}
+        options_map = {}
+        options_map[:pretty] = true
+        options_map[:indent] = opts[:indent] if opts.has_key?(:indent)
+        to_json(obj, options_map).chomp
       end
 
-
       # Map +json_class+ to a Class object. We use a +case+ instead of a Hash
       # assigned to a constant because otherwise this file could not be loaded
       # until all the constants were defined, which means you'd have to load
@@ -131,7 +148,7 @@ class Chef
         when /^Chef::Resource/
           Chef::Resource.find_subclass_by_name(json_class)
         else
-          raise JSON::ParserError, "Unsupported `json_class` type '#{json_class}'"
+          raise Chef::Exceptions::JSON::ParseError, "Unsupported `json_class` type '#{json_class}'"
         end
       end
 
diff --git a/lib/chef/knife/bootstrap.rb b/lib/chef/knife/bootstrap.rb
index 46cacbd3e0..d3d45bad4b 100644
--- a/lib/chef/knife/bootstrap.rb
+++ b/lib/chef/knife/bootstrap.rb
@@ -126,7 +126,7 @@ class Chef
         :short => "-j JSON_ATTRIBS",
         :long => "--json-attributes",
         :description => "A JSON string to be added to the first run of chef-client",
-        :proc => lambda { |o| JSON.parse(o) },
+        :proc => lambda { |o| Chef::JSONCompat.parse(o) },
         :default => {}
 
       option :host_key_verify,
@@ -141,7 +141,7 @@ class Chef
         :proc => Proc.new { |h|
           Chef::Config[:knife][:hints] ||= Hash.new
           name, path = h.split("=")
-          Chef::Config[:knife][:hints][name] = path ? JSON.parse(::File.read(path)) : Hash.new  }
+          Chef::Config[:knife][:hints][name] = path ? Chef::JSONCompat.parse(::File.read(path)) : Hash.new  }
 
       option :secret,
         :short => "-s SECRET",
diff --git a/lib/chef/knife/cookbook_site_share.rb b/lib/chef/knife/cookbook_site_share.rb
index 330f3cb229..b360cad728 100644
--- a/lib/chef/knife/cookbook_site_share.rb
+++ b/lib/chef/knife/cookbook_site_share.rb
@@ -87,7 +87,7 @@ class Chef
       def do_upload(cookbook_filename, cookbook_category, user_id, user_secret_filename)
          uri = "http://cookbooks.opscode.com/api/v1/cookbooks"
 
-         category_string = { 'category'=>cookbook_category }.to_json
+         category_string = Chef::JSONCompat.to_json({ 'category'=>cookbook_category })
 
          http_resp = Chef::CookbookSiteStreamingUploader.post(uri, user_id, user_secret_filename, {
            :tarball => File.open(cookbook_filename),
diff --git a/lib/chef/knife/deps.rb b/lib/chef/knife/deps.rb
index b2a39a0725..4b23468962 100644
--- a/lib/chef/knife/deps.rb
+++ b/lib/chef/knife/deps.rb
@@ -77,7 +77,7 @@ class Chef
             return entry.chef_object.metadata.dependencies.keys.map { |cookbook| "/cookbooks/#{cookbook}" }
 
           elsif entry.parent && entry.parent.path == '/nodes'
-            node = JSON.parse(entry.read, :create_additions => false)
+            node = Chef::JSONCompat.parse(entry.read)
             result = []
             if node['chef_environment'] && node['chef_environment'] != '_default'
               result << "/environments/#{node['chef_environment']}.json"
@@ -88,7 +88,7 @@ class Chef
             result
 
           elsif entry.parent && entry.parent.path == '/roles'
-            role = JSON.parse(entry.read, :create_additions => false)
+            role = Chef::JSONCompat.parse(entry.read)
             result = []
             if role['run_list']
               dependencies_from_runlist(role['run_list']).each do |dependency|
@@ -138,4 +138,3 @@ class Chef
     end
   end
 end
-
diff --git a/lib/chef/node.rb b/lib/chef/node.rb
index 17ec1d0f0a..327da67b1c 100644
--- a/lib/chef/node.rb
+++ b/lib/chef/node.rb
@@ -181,7 +181,6 @@ class Chef
       attributes.override
     end
 
-
     def override_attrs
      attributes.override
     end
@@ -416,7 +415,7 @@ class Chef
 
     # Serialize this object as a hash
     def to_json(*a)
-      for_json.to_json(*a)
+      Chef::JSONCompat.to_json(for_json, *a)
     end
 
     def for_json
diff --git a/lib/chef/provider/deploy/revision.rb b/lib/chef/provider/deploy/revision.rb
index f1eb171cd7..89710088d1 100644
--- a/lib/chef/provider/deploy/revision.rb
+++ b/lib/chef/provider/deploy/revision.rb
@@ -97,7 +97,7 @@ class Chef
         end
 
         def save_cache(cache)
-          Chef::FileCache.store("revision-deploys/#{new_resource.name}", cache.to_json)
+          Chef::FileCache.store("revision-deploys/#{new_resource.name}", Chef::JSONCompat.to_json(cache))
           cache
         end
 
diff --git a/lib/chef/provider/remote_file/cache_control_data.rb b/lib/chef/provider/remote_file/cache_control_data.rb
index 8331f3d31a..75b2a5535a 100644
--- a/lib/chef/provider/remote_file/cache_control_data.rb
+++ b/lib/chef/provider/remote_file/cache_control_data.rb
@@ -140,7 +140,7 @@ class Chef
 
         def load_data
           Chef::JSONCompat.from_json(load_json_data)
-        rescue Chef::Exceptions::FileNotFound, FFI_Yajl::ParseError, JSON::ParserError
+        rescue Chef::Exceptions::FileNotFound, Chef::Exceptions::JSON::ParseError
           false
         end
 
diff --git a/lib/chef/resource.rb b/lib/chef/resource.rb
index 6c8e0434a0..6adf937f53 100644
--- a/lib/chef/resource.rb
+++ b/lib/chef/resource.rb
@@ -134,7 +134,6 @@ F
 
     extend Chef::Mixin::ConvertToClassName
 
-
     if Module.method(:const_defined?).arity == 1
       def self.strict_const_defined?(const)
         const_defined?(const)
@@ -277,7 +276,6 @@ F
       end
     end
 
-
     def updated=(true_or_false)
       Chef::Log.warn("Chef::Resource#updated=(true|false) is deprecated. Please call #updated_by_last_action(true|false) instead.")
       Chef::Log.warn("Called from:")
@@ -544,7 +542,7 @@ F
     # Serialize this object as a hash
     def to_json(*a)
       results = as_json
-      results.to_json(*a)
+      Chef::JSONCompat.to_json(results, *a)
     end
 
     def to_hash
diff --git a/lib/chef/resource_collection.rb b/lib/chef/resource_collection.rb
index a528a18aed..2cbd61cb0c 100644
--- a/lib/chef/resource_collection.rb
+++ b/lib/chef/resource_collection.rb
@@ -158,7 +158,6 @@ class Chef
     # compat.
     alias_method :resources, :find
 
-
     # Returns true if +query_object+ is a valid string for looking up a
     # resource, or raises InvalidResourceSpecification if not.
     # === Arguments
@@ -189,16 +188,19 @@ class Chef
     end
 
     # Serialize this object as a hash
-    def to_json(*a)
+    def to_hash
       instance_vars = Hash.new
       self.instance_variables.each do |iv|
         instance_vars[iv] = self.instance_variable_get(iv)
       end
-      results = {
+      {
         'json_class' => self.class.name,
         'instance_vars' => instance_vars
       }
-      results.to_json(*a)
+    end
+
+    def to_json(*a)
+      Chef::JSONCompat.to_json(to_hash, *a)
     end
 
     def self.json_create(o)
diff --git a/lib/chef/resource_reporter.rb b/lib/chef/resource_reporter.rb
index 046e4e82c6..a19f26125e 100644
--- a/lib/chef/resource_reporter.rb
+++ b/lib/chef/resource_reporter.rb
@@ -230,7 +230,7 @@ class Chef
         resource_history_url = "reports/nodes/#{node_name}/runs/#{run_id}"
         Chef::Log.info("Sending resource update report (run-id: #{run_id})")
         Chef::Log.debug run_data.inspect
-        compressed_data = encode_gzip(run_data.to_json)
+        compressed_data = encode_gzip(Chef::JSONCompat.to_json(run_data))
         Chef::Log.debug("Sending compressed run data...")
         # Since we're posting compressed data we can not directly call post_rest which expects JSON
         reporting_url = @rest_client.create_url(resource_history_url)
@@ -273,7 +273,7 @@ class Chef
         resource_record.for_json
       end
       run_data["status"] = @status
-      run_data["run_list"] = @run_status.node.run_list.to_json
+      run_data["run_list"] = Chef::JSONCompat.to_json(@run_status.node.run_list)
       run_data["total_res_count"] = @total_res_count.to_s
       run_data["data"] = {}
       run_data["start_time"] = start_time.to_s
@@ -283,7 +283,7 @@ class Chef
         exception_data = {}
         exception_data["class"] = exception.inspect
         exception_data["message"] = exception.message
-        exception_data["backtrace"] = exception.backtrace.to_json
+        exception_data["backtrace"] = Chef::JSONCompat.to_json(exception.backtrace)
         exception_data["description"] =  @error_descriptions
         run_data["data"]["exception"] = exception_data
       end
diff --git a/lib/chef/role.rb b/lib/chef/role.rb
index 57f3a2aa29..aeea873051 100644
--- a/lib/chef/role.rb
+++ b/lib/chef/role.rb
@@ -143,7 +143,7 @@ class Chef
 
     # Serialize this object as a hash
     def to_json(*a)
-      to_hash.to_json(*a)
+      Chef::JSONCompat.to_json(to_hash, *a)
     end
 
     def update_from!(o)
diff --git a/lib/chef/run_list.rb b/lib/chef/run_list.rb
index 684c5e19fc..01e32ffc98 100644
--- a/lib/chef/run_list.rb
+++ b/lib/chef/run_list.rb
@@ -85,8 +85,12 @@ class Chef
       @run_list_items.join(", ")
     end
 
-    def to_json(*args)
-      to_a.map { |item| item.to_s}.to_json(*args)
+    def for_json
+      to_a.map { |item| item.to_s }
+    end
+
+    def to_json(*a)
+      Chef::JSONCompat.to_json(for_json, *a)
     end
 
     def empty?
@@ -158,6 +162,5 @@ class Chef
       end
     end
 
-
   end
 end
diff --git a/lib/chef/user.rb b/lib/chef/user.rb
index e2ef45dc5c..6569a97f00 100644
--- a/lib/chef/user.rb
+++ b/lib/chef/user.rb
@@ -73,7 +73,7 @@ class Chef
     end
 
     def to_json(*a)
-      to_hash.to_json(*a)
+      Chef::JSONCompat.to_json(to_hash, *a)
     end
 
     def destroy
diff --git a/lib/chef/util/diff.rb b/lib/chef/util/diff.rb
index 7bce52d874..3117484a71 100644
--- a/lib/chef/util/diff.rb
+++ b/lib/chef/util/diff.rb
@@ -82,7 +82,7 @@ class Chef
           end
         end
       end
-      
+
       # produces a unified-output-format diff with 3 lines of context
       # ChefFS uses udiff() directly
       def udiff(old_file, new_file)
@@ -185,4 +185,3 @@ class Chef
     end
   end
 end
-