Included parameterless constructor.

Author: Oren (electricessence)

.gitignore

@@ -328,3 +328,4 @@ ASALocalRun/
 
 # MFractors (Xamarin productivity tool) working folder 
 .mfractor/
+/.vscode

Open.Serialization.Json.Newtonsoft/JsonSerializerFactory.cs

@@ -9,11 +9,15 @@ public class JsonSerializerFactory : IJsonSerializerFactory, IJsonObjectSerializ
 	{
 		static readonly JsonSerializerSettings DefaultOptions = RelaxedJson.Options();
 		readonly JsonSerializerSettings _settings;
-		public JsonSerializerFactory(JsonSerializerSettings? defaultOptions = null)
+		public JsonSerializerFactory(JsonSerializerSettings? defaultOptions)
 		{
 			_settings = defaultOptions?.Clone() ?? DefaultOptions;
 		}
 
+		public JsonSerializerFactory() : this(null)
+		{
+		}
+
 		JsonSerializerInternal? _defaultSerializer;
 		internal JsonSerializerInternal DefaultSerializer
 			=> LazyInitializer.EnsureInitialized(ref _defaultSerializer, () => new JsonSerializerInternal(_settings))!;

Open.Serialization.Json.Newtonsoft/Open.Serialization.Json.Newtonsoft.csproj

@@ -17,7 +17,7 @@
 		<RepositoryUrl>https://github.com/electricessence/Open.Serialization</RepositoryUrl>
 		<RepositoryType>git</RepositoryType>
 		<PackageTags>serialization json newtonsoft</PackageTags>
-		<Version>2.2.3</Version>
+		<Version>2.2.4</Version>
 		<Nullable>enable</Nullable>
 	</PropertyGroup>
 

Open.Serialization.Json.System/JsonSerializerFactory.cs

@@ -7,11 +7,15 @@ public class JsonSerializerFactory : IJsonSerializerFactory
 	{
 		static readonly JsonSerializerOptions DefaultOptions = RelaxedJson.Options();
 		readonly JsonSerializerOptions _options;
-		public JsonSerializerFactory(JsonSerializerOptions? defaultOptions = null)
+		public JsonSerializerFactory(JsonSerializerOptions? defaultOptions)
 		{
 			_options = defaultOptions?.Clone() ?? DefaultOptions;
 		}
 
+		public JsonSerializerFactory() : this(null)
+		{
+		}
+
 		JsonSerializerInternal? _caseSensitive;
 		JsonSerializerInternal? _ignoreCase;
 

Open.Serialization.Json.System/Open.Serialization.Json.System.csproj

@@ -17,7 +17,7 @@ Part of the "Open" set of libraries.
 		<RepositoryUrl>https://github.com/electricessence/Open.Serialization</RepositoryUrl>
 		<RepositoryType>git</RepositoryType>
 		<PackageTags>serialization json stj</PackageTags>
-		<Version>2.2.2</Version>
+		<Version>2.2.4</Version>
 		<Nullable>enable</Nullable>
 	</PropertyGroup>
 

Open.Serialization.Json.Utf8Json/JsonSerializerFactory.cs

@@ -9,14 +9,18 @@ public class JsonSerializerFactory : IJsonSerializerFactory
 	{
 		readonly IJsonFormatterResolver _resolver;
 		readonly bool _indent;
-		public JsonSerializerFactory(IJsonFormatterResolver? defaultResolver = null, bool indent = false)
+		public JsonSerializerFactory(IJsonFormatterResolver? defaultResolver, bool indent = false)
 		{
 			_resolver = defaultResolver ?? StandardResolver.Default;
 			if (_resolver == StandardResolver.ExcludeNullSnakeCase || _resolver == StandardResolver.SnakeCase)
 				throw new ArgumentOutOfRangeException(nameof(defaultResolver), "Snake case is not supported.");
 			_indent = indent;
 		}
 
+		public JsonSerializerFactory() : this(null)
+		{
+		}
+
 		JsonSerializerInternal? _defaultSerializer;
 		JsonSerializerInternal DefaultSerializer
 			=> LazyInitializer.EnsureInitialized(ref _defaultSerializer, () => new JsonSerializerInternal(_resolver, _indent))!;

Open.Serialization.Json.Utf8Json/Open.Serialization.Json.Utf8Json.csproj

@@ -17,7 +17,7 @@ Part of the "Open" set of libraries.
 		<RepositoryUrl>https://github.com/electricessence/Open.Serialization</RepositoryUrl>
 		<RepositoryType>git</RepositoryType>
 		<PackageTags>serialization json utf8json</PackageTags>
-		<Version>2.2.3</Version>
+		<Version>2.2.4</Version>
 		<Nullable>enable</Nullable>
 	</PropertyGroup>