Add usage of STJ for .net 8

Directory.Packages.props

@@ -13,7 +13,7 @@
     <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="17.11.1" />
     <PackageVersion Include="Microsoft.Extensions.DependencyInjection" Version="2.2.0" />
     <PackageVersion Include="Microsoft.Extensions.DependencyInjection.Abstractions" Version="2.2.0" />
-    <PackageVersion Include="Microsoft.Extensions.Logging" Version="2.2.0" /> 
+    <PackageVersion Include="Microsoft.Extensions.Logging" Version="2.2.0" />
     <PackageVersion Include="Microsoft.Bcl.AsyncInterfaces" Version="5.0.0" />
     <PackageVersion Include="Moq" Version="4.20.70" />
     <PackageVersion Include="NUnit3TestAdapter" Version="4.6.0" />
@@ -29,9 +29,10 @@
     <PackageVersion Include="SimpleExec" Version="12.0.0" />
     <PackageVersion Include="Speckle.Objects" Version="3.1.0-dev.109" />
     <PackageVersion Include="System.Threading.Channels" Version="8.0.0" />
+    <PackageVersion Include="System.Text.Json" Version="5.0.0" />
     <GlobalPackageReference Include="PolySharp" Version="1.14.1" />
     <GlobalPackageReference Include="Microsoft.SourceLink.GitHub" Version="8.0.0" />
     <GlobalPackageReference Include="GitVersion.MsBuild" Version="5.12.0" />
     <GlobalPackageReference Include="Speckle.InterfaceGenerator" Version="0.9.6" />
   </ItemGroup>
-</Project>
+</Project>

src/Speckle.Objects/GIS/GisPointFeature.cs

@@ -1,4 +1,3 @@
-using Speckle.Newtonsoft.Json;
 using Speckle.Objects.Geometry;
 using Speckle.Sdk.Models;
 
@@ -9,7 +8,8 @@ public class GisPointFeature : Base, IGisFeature, IDisplayValue<List<Point>>
 {
   public required Base attributes { get; set; }
 
-  [JsonIgnore]
+  [Newtonsoft.Json.JsonIgnore]
+  [System.Text.Json.Serialization.JsonIgnore]
   public required List<Point> geometry
   {
     get => displayValue;

src/Speckle.Objects/GIS/GisPolylineFeature.cs

@@ -1,4 +1,3 @@
-using Speckle.Newtonsoft.Json;
 using Speckle.Objects.Geometry;
 using Speckle.Sdk.Models;
 
@@ -9,7 +8,8 @@ public class GisPolylineFeature : Base, IGisFeature, IDisplayValue<List<Polyline
 {
   public required Base attributes { get; set; }
 
-  [JsonIgnore]
+  [Newtonsoft.Json.JsonIgnore]
+  [System.Text.Json.Serialization.JsonIgnore]
   public required List<Polyline> geometry
   {
     get => displayValue;

src/Speckle.Objects/Geometry/Arc.cs

@@ -1,4 +1,3 @@
-using Speckle.Newtonsoft.Json;
 using Speckle.Objects.Other;
 using Speckle.Objects.Primitive;
 using Speckle.Sdk.Common;
@@ -42,19 +41,25 @@ public class Arc : Base, IHasBoundingBox, ICurve, ITransformable<Arc>
   /// <summary>
   /// OBSOLETE - This is just here for backwards compatibility.
   /// </summary>
-  [JsonIgnore, Obsolete("start angle should be calculated from arc startpoint and plane if needed", true)]
+  [Obsolete("start angle should be calculated from arc startpoint and plane if needed", true)]
+  [Newtonsoft.Json.JsonIgnore]
+  [System.Text.Json.Serialization.JsonIgnore]
   public double? startAngle { get; set; }
 
   /// <summary>
   /// OBSOLETE - This is just here for backwards compatibility.
   /// </summary>
-  [JsonIgnore, Obsolete("end angle should be calculated from arc endpoint and plane if needed", true)]
+  [Obsolete("end angle should be calculated from arc endpoint and plane if needed", true)]
+  [Newtonsoft.Json.JsonIgnore]
+  [System.Text.Json.Serialization.JsonIgnore]
   public double? endAngle { get; set; }
 
   /// <summary>
   /// OBSOLETE - This is just here for backwards compatibility.
   /// </summary>
-  [JsonIgnore, Obsolete("Refer to measure instead", true)]
+  [Obsolete("Refer to measure instead", true)]
+  [Newtonsoft.Json.JsonIgnore]
+  [System.Text.Json.Serialization.JsonIgnore]
   public double angleRadians { get; set; }
 
   /// <summary>
@@ -81,7 +86,9 @@ public class Arc : Base, IHasBoundingBox, ICurve, ITransformable<Arc>
   /// <summary>
   /// OBSOLETE - This is just here for backwards compatibility.
   /// </summary>
-  [JsonIgnore, Obsolete("Area property does not belong on an arc", true)]
+  [Obsolete("Area property does not belong on an arc", true)]
+  [Newtonsoft.Json.JsonIgnore]
+  [System.Text.Json.Serialization.JsonIgnore]
   public double area { get; set; }
 
   /// <inheritdoc/>

src/Speckle.Objects/Geometry/Box.cs

@@ -1,4 +1,3 @@
-using Speckle.Newtonsoft.Json;
 using Speckle.Objects.Primitive;
 using Speckle.Sdk.Common;
 using Speckle.Sdk.Models;
@@ -11,7 +10,9 @@ namespace Speckle.Objects.Geometry;
 [SpeckleType("Objects.Geometry.Box")]
 public class Box : Base, IHasVolume, IHasArea, IHasBoundingBox
 {
-  [JsonIgnore, Obsolete("Use plane property instead", true)]
+  [Obsolete("Use plane property instead", true)]
+  [Newtonsoft.Json.JsonIgnore]
+  [System.Text.Json.Serialization.JsonIgnore]
   public Plane basePlane
   {
     get => plane;
@@ -49,7 +50,9 @@ public Plane basePlane
   /// <inheritdoc/>
   public double area => 2 * (xSize.Length * ySize.Length + xSize.Length * zSize.Length + ySize.Length * zSize.Length);
 
-  [JsonIgnore, Obsolete("Boxs should not have a bounding box", true)]
+  [Obsolete("Boxs should not have a bounding box", true)]
+  [Newtonsoft.Json.JsonIgnore]
+  [System.Text.Json.Serialization.JsonIgnore]
   public Box? bbox { get; }
 
   /// <inheritdoc/>

src/Speckle.Objects/Geometry/Brep.cs

@@ -1,5 +1,4 @@
 using System.Runtime.Serialization;
-using Speckle.Newtonsoft.Json;
 using Speckle.Objects.Other;
 using Speckle.Objects.Primitive;
 using Speckle.Sdk.Common;
@@ -25,7 +24,9 @@ public class Brep : Base, IHasArea, IHasVolume, IHasBoundingBox, ITransformable<
   /// <summary>
   /// Gets or sets the list of surfaces in this <see cref="Brep"/> instance.
   /// </summary>
-  [JsonIgnore]
+
+  [Newtonsoft.Json.JsonIgnore]
+  [System.Text.Json.Serialization.JsonIgnore]
   public required List<Surface> Surfaces { get; set; }
 
   /// <summary>
@@ -68,7 +69,9 @@ public List<double> SurfacesValue
   /// <summary>
   /// Gets or sets the list of 3-dimensional curves in this <see cref="Brep"/> instance.
   /// </summary>
-  [JsonIgnore]
+
+  [Newtonsoft.Json.JsonIgnore]
+  [System.Text.Json.Serialization.JsonIgnore]
   public required List<ICurve> Curve3D { get; set; }
 
   /// <summary>
@@ -93,7 +96,9 @@ public List<double> Curve3DValues
   /// <summary>
   /// Gets or sets the list of 2-dimensional UV curves in this <see cref="Brep"/> instance.
   /// </summary>
-  [JsonIgnore]
+
+  [Newtonsoft.Json.JsonIgnore]
+  [System.Text.Json.Serialization.JsonIgnore]
   public required List<ICurve> Curve2D { get; set; }
 
   /// <summary>
@@ -118,7 +123,9 @@ public List<double> Curve2DValues
   /// <summary>
   /// Gets or sets the list of vertices in this <see cref="Brep"/> instance.
   /// </summary>
-  [JsonIgnore]
+
+  [Newtonsoft.Json.JsonIgnore]
+  [System.Text.Json.Serialization.JsonIgnore]
   public required List<Point> Vertices { get; set; }
 
   /// <summary>
@@ -158,7 +165,9 @@ public List<double> VerticesValue
   /// <summary>
   /// Gets or sets the list of edges in this <see cref="Brep"/> instance.
   /// </summary>
-  [JsonIgnore]
+
+  [Newtonsoft.Json.JsonIgnore]
+  [System.Text.Json.Serialization.JsonIgnore]
   public required List<BrepEdge> Edges { get; set; }
 
   /// <summary>
@@ -232,7 +241,9 @@ public List<double?> EdgesValue
   /// <summary>
   /// Gets or sets the list of closed UV loops in this <see cref="Brep"/> instance.
   /// </summary>
-  [JsonIgnore]
+
+  [Newtonsoft.Json.JsonIgnore]
+  [System.Text.Json.Serialization.JsonIgnore]
   public required List<BrepLoop> Loops { get; set; }
 
   /// <summary>
@@ -288,7 +299,9 @@ public List<int> LoopsValue
   /// <summary>
   /// Gets or sets the list of UV trim segments for each surface in this <see cref="Brep"/> instance.
   /// </summary>
-  [JsonIgnore]
+
+  [Newtonsoft.Json.JsonIgnore]
+  [System.Text.Json.Serialization.JsonIgnore]
   public required List<BrepTrim> Trims { get; set; }
 
   /// <summary>
@@ -354,7 +367,9 @@ public List<int> TrimsValue
   /// <summary>
   /// Gets or sets the list of faces in this <see cref="Brep"/> instance.
   /// </summary>
-  [JsonIgnore]
+
+  [Newtonsoft.Json.JsonIgnore]
+  [System.Text.Json.Serialization.JsonIgnore]
   public required List<BrepFace> Faces { get; set; }
 
   /// <summary>

src/Speckle.Objects/Geometry/BrepEdge.cs

@@ -1,4 +1,3 @@
-using Speckle.Newtonsoft.Json;
 using Speckle.Objects.Primitive;
 using Speckle.Sdk.Models;
 
@@ -10,7 +9,8 @@ namespace Speckle.Objects.Geometry;
 [SpeckleType("Objects.Geometry.BrepEdge")]
 public class BrepEdge : Base
 {
-  [JsonIgnore]
+  [Newtonsoft.Json.JsonIgnore]
+  [System.Text.Json.Serialization.JsonIgnore]
   public required Brep Brep { get; set; }
 
   public required int Curve3dIndex { get; set; }
@@ -22,15 +22,19 @@ public class BrepEdge : Base
 
   public required Interval Domain { get; set; }
 
-  [JsonIgnore]
+  [Newtonsoft.Json.JsonIgnore]
+  [System.Text.Json.Serialization.JsonIgnore]
   public Point StartVertex => Brep.Vertices[StartIndex];
 
-  [JsonIgnore]
+  [Newtonsoft.Json.JsonIgnore]
+  [System.Text.Json.Serialization.JsonIgnore]
   public Point EndVertex => Brep.Vertices[EndIndex];
 
-  [JsonIgnore]
+  [Newtonsoft.Json.JsonIgnore]
+  [System.Text.Json.Serialization.JsonIgnore]
   public IEnumerable<BrepTrim> Trims => TrimIndices.Select(i => Brep.Trims[i]);
 
-  [JsonIgnore]
+  [Newtonsoft.Json.JsonIgnore]
+  [System.Text.Json.Serialization.JsonIgnore]
   public ICurve Curve => Brep.Curve3D[Curve3dIndex];
 }

src/Speckle.Objects/Geometry/BrepFace.cs

@@ -1,4 +1,3 @@
-using Speckle.Newtonsoft.Json;
 using Speckle.Sdk.Models;
 
 namespace Speckle.Objects.Geometry;
@@ -9,20 +8,24 @@ namespace Speckle.Objects.Geometry;
 [SpeckleType("Objects.Geometry.BrepFace")]
 public class BrepFace : Base
 {
-  [JsonIgnore]
+  [Newtonsoft.Json.JsonIgnore]
+  [System.Text.Json.Serialization.JsonIgnore]
   public required Brep Brep { get; set; }
 
   public required int SurfaceIndex { get; set; }
   public required List<int> LoopIndices { get; set; }
   public required int OuterLoopIndex { get; set; }
   public required bool OrientationReversed { get; set; }
 
-  [JsonIgnore]
+  [Newtonsoft.Json.JsonIgnore]
+  [System.Text.Json.Serialization.JsonIgnore]
   public BrepLoop OuterLoop => Brep.Loops[OuterLoopIndex];
 
-  [JsonIgnore]
+  [Newtonsoft.Json.JsonIgnore]
+  [System.Text.Json.Serialization.JsonIgnore]
   public Surface Surface => Brep.Surfaces[SurfaceIndex];
 
-  [JsonIgnore]
+  [Newtonsoft.Json.JsonIgnore]
+  [System.Text.Json.Serialization.JsonIgnore]
   public List<BrepLoop> Loops => LoopIndices.Select(i => Brep.Loops[i]).ToList();
 }

src/Speckle.Objects/Geometry/BrepLoop.cs

@@ -1,4 +1,3 @@
-using Speckle.Newtonsoft.Json;
 using Speckle.Sdk.Models;
 
 namespace Speckle.Objects.Geometry;
@@ -9,16 +8,19 @@ namespace Speckle.Objects.Geometry;
 [SpeckleType("Objects.Geometry.BrepLoop")]
 public class BrepLoop : Base
 {
-  [JsonIgnore]
+  [Newtonsoft.Json.JsonIgnore]
+  [System.Text.Json.Serialization.JsonIgnore]
   public required Brep Brep { get; set; }
 
   public required int FaceIndex { get; set; }
   public required List<int> TrimIndices { get; set; }
   public required BrepLoopType Type { get; set; }
 
-  [JsonIgnore]
+  [Newtonsoft.Json.JsonIgnore]
+  [System.Text.Json.Serialization.JsonIgnore]
   public BrepFace Face => Brep.Faces[FaceIndex];
 
-  [JsonIgnore]
+  [Newtonsoft.Json.JsonIgnore]
+  [System.Text.Json.Serialization.JsonIgnore]
   public List<BrepTrim> Trims => TrimIndices.Select(i => Brep.Trims[i]).ToList();
 }

src/Speckle.Objects/Geometry/BrepTrim.cs

@@ -1,4 +1,3 @@
-using Speckle.Newtonsoft.Json;
 using Speckle.Objects.Primitive;
 using Speckle.Sdk.Models;
 
@@ -10,7 +9,8 @@ namespace Speckle.Objects.Geometry;
 [SpeckleType("Objects.Geometry.BrepTrim")]
 public class BrepTrim : Base
 {
-  [JsonIgnore]
+  [Newtonsoft.Json.JsonIgnore]
+  [System.Text.Json.Serialization.JsonIgnore]
   public required Brep Brep { get; set; }
   public required int EdgeIndex { get; set; }
   public required int StartIndex { get; set; }
@@ -24,15 +24,19 @@ public class BrepTrim : Base
 
   public required Interval Domain { get; set; }
 
-  [JsonIgnore]
+  [Newtonsoft.Json.JsonIgnore]
+  [System.Text.Json.Serialization.JsonIgnore]
   public BrepFace Face => Brep.Faces[FaceIndex];
 
-  [JsonIgnore]
+  [Newtonsoft.Json.JsonIgnore]
+  [System.Text.Json.Serialization.JsonIgnore]
   public BrepLoop Loop => Brep.Loops[LoopIndex];
 
-  [JsonIgnore]
+  [Newtonsoft.Json.JsonIgnore]
+  [System.Text.Json.Serialization.JsonIgnore]
   public BrepEdge? Edge => EdgeIndex != -1 ? Brep.Edges[EdgeIndex] : null;
 
-  [JsonIgnore]
+  [Newtonsoft.Json.JsonIgnore]
+  [System.Text.Json.Serialization.JsonIgnore]
   public ICurve Curve2d => Brep.Curve2D[CurveIndex];
 }

src/Speckle.Objects/Geometry/ControlPoint.cs

@@ -1,5 +1,4 @@
 using System.Diagnostics.CodeAnalysis;
-using Speckle.Newtonsoft.Json;
 using Speckle.Objects.Other;
 using Speckle.Sdk.Models;
 
@@ -23,7 +22,10 @@ public ControlPoint(double x, double y, double z, double w, string units, string
   /// OBSOLETE - This is just here for backwards compatibility.
   /// </summary>
   [
-    JsonProperty(NullValueHandling = NullValueHandling.Ignore),
+    Speckle.Newtonsoft.Json.JsonProperty(NullValueHandling = Speckle.Newtonsoft.Json.NullValueHandling.Ignore),
+    System.Text.Json.Serialization.JsonIgnore(
+      Condition = System.Text.Json.Serialization.JsonIgnoreCondition.WhenWritingNull
+    ),
     Obsolete("Access coordinates using XYZ and weight fields", true)
   ]
   private new List<double> value