From 804c448d2e5a8d53405624aecd4f315261a2f379 Mon Sep 17 00:00:00 2001
From: Timothy Mothra <tilee@microsoft.com>
Date: Mon, 5 Dec 2022 15:33:57 -0800
Subject: [PATCH] add nullable enable to Common.props and disable in projects.
 (#3964)

---
 build/Common.props                                           | 1 +
 docs/logs/redaction/redaction.csproj                         | 4 ++++
 docs/trace/customizing-the-sdk/customizing-the-sdk.csproj    | 4 ++++
 examples/AspNetCore/Examples.AspNetCore.csproj               | 1 -
 examples/Console/Examples.Console.csproj                     | 3 +++
 examples/MicroserviceExample/Utils/Utils.csproj              | 5 ++++-
 src/OpenTelemetry.Api/OpenTelemetry.Api.csproj               | 1 +
 .../OpenTelemetry.Exporter.Console.csproj                    | 1 +
 .../OpenTelemetry.Exporter.InMemory.csproj                   | 1 +
 .../OpenTelemetry.Exporter.Jaeger.csproj                     | 1 +
 .../OpenTelemetry.Exporter.OpenTelemetryProtocol.Logs.csproj | 1 +
 .../OpenTelemetry.Exporter.OpenTelemetryProtocol.csproj      | 1 +
 .../OpenTelemetry.Exporter.Prometheus.AspNetCore.csproj      | 1 +
 .../OpenTelemetry.Exporter.Prometheus.HttpListener.csproj    | 1 +
 .../OpenTelemetry.Exporter.ZPages.csproj                     | 1 +
 .../OpenTelemetry.Exporter.Zipkin.csproj                     | 1 +
 .../OpenTelemetry.Extensions.Hosting.csproj                  | 1 +
 .../OpenTelemetry.Extensions.Propagators.csproj              | 1 +
 .../OpenTelemetry.Instrumentation.AspNetCore.csproj          | 1 +
 .../OpenTelemetry.Instrumentation.GrpcNetClient.csproj       | 1 +
 .../OpenTelemetry.Instrumentation.Http.csproj                | 1 +
 .../OpenTelemetry.Instrumentation.SqlClient.csproj           | 1 +
 .../OpenTelemetry.Shims.OpenTracing.csproj                   | 1 +
 src/OpenTelemetry/OpenTelemetry.csproj                       | 1 +
 test/Benchmarks/Benchmarks.csproj                            | 3 +++
 .../OpenTelemetry.Exporter.Console.Tests.csproj              | 1 -
 .../OpenTelemetry.Exporter.Jaeger.Tests.csproj               | 3 +++
 ...OpenTelemetry.Exporter.OpenTelemetryProtocol.Tests.csproj | 3 +++
 ...OpenTelemetry.Exporter.Prometheus.AspNetCore.Tests.csproj | 3 +++
 ...enTelemetry.Exporter.Prometheus.HttpListener.Tests.csproj | 3 +++
 .../OpenTelemetry.Exporter.ZPages.Tests.csproj               | 3 +++
 .../OpenTelemetry.Exporter.Zipkin.Tests.csproj               | 3 +++
 .../OpenTelemetry.Extensions.Hosting.Tests.csproj            | 3 +++
 .../OpenTelemetry.Extensions.Propagators.Tests.csproj        | 3 +++
 .../OpenTelemetry.Instrumentation.AspNetCore.Tests.csproj    | 3 +++
 .../OpenTelemetry.Instrumentation.Grpc.Tests.csproj          | 3 +++
 .../OpenTelemetry.Instrumentation.Http.Tests.csproj          | 3 +++
 .../OpenTelemetry.Instrumentation.SqlClient.Tests.csproj     | 3 +++
 ...penTelemetry.Instrumentation.W3cTraceContext.Tests.csproj | 3 +++
 .../OpenTelemetry.Shims.OpenTracing.Tests.csproj             | 3 +++
 .../OpenTelemetry.Tests.Stress.Logs.csproj                   | 3 +++
 .../OpenTelemetry.Tests.Stress.Metrics.csproj                | 3 +++
 test/OpenTelemetry.Tests/OpenTelemetry.Tests.csproj          | 3 +++
 test/TestApp.AspNetCore/TestApp.AspNetCore.csproj            | 1 -
 44 files changed, 88 insertions(+), 4 deletions(-)

diff --git a/build/Common.props b/build/Common.props
index 119c575b5..e01f6bc1d 100644
--- a/build/Common.props
+++ b/build/Common.props
@@ -6,6 +6,7 @@
     <AssemblyOriginatorKeyFile>$(MSBuildThisFileDirectory)debug.snk</AssemblyOriginatorKeyFile>
     <DefineConstants>$(DefineConstants);SIGNED</DefineConstants>
     <EnforceCodeStyleInBuild>true</EnforceCodeStyleInBuild>
+    <Nullable>enable</Nullable>
     <ImplicitUsings>enable</ImplicitUsings>
     <AnalysisLevel>latest-All</AnalysisLevel>
   </PropertyGroup>
diff --git a/docs/logs/redaction/redaction.csproj b/docs/logs/redaction/redaction.csproj
index a0d4b1e14..cda18a7d1 100644
--- a/docs/logs/redaction/redaction.csproj
+++ b/docs/logs/redaction/redaction.csproj
@@ -1,4 +1,8 @@
 <Project Sdk="Microsoft.NET.Sdk">
+  <PropertyGroup>
+    <!-- this is temporary. will remove in future PR. -->
+    <Nullable>disable</Nullable>
+  </PropertyGroup>
   <ItemGroup>
     <PackageReference Include="Microsoft.Extensions.Logging" Version="$(MicrosoftExtensionsLoggingPkgVer)" />
     <ProjectReference Include="$(RepoRoot)\src\OpenTelemetry.Exporter.Console\OpenTelemetry.Exporter.Console.csproj" />
diff --git a/docs/trace/customizing-the-sdk/customizing-the-sdk.csproj b/docs/trace/customizing-the-sdk/customizing-the-sdk.csproj
index 19aa97914..2dc5d8deb 100644
--- a/docs/trace/customizing-the-sdk/customizing-the-sdk.csproj
+++ b/docs/trace/customizing-the-sdk/customizing-the-sdk.csproj
@@ -1,4 +1,8 @@
 <Project Sdk="Microsoft.NET.Sdk">
+  <PropertyGroup>
+    <!-- this is temporary. will remove in future PR. -->
+    <Nullable>disable</Nullable>
+  </PropertyGroup>
   <ItemGroup>
     <ProjectReference Include="$(RepoRoot)\src\OpenTelemetry.Exporter.Console\OpenTelemetry.Exporter.Console.csproj" />
   </ItemGroup>
diff --git a/examples/AspNetCore/Examples.AspNetCore.csproj b/examples/AspNetCore/Examples.AspNetCore.csproj
index 4ad692478..b8b09bcd9 100644
--- a/examples/AspNetCore/Examples.AspNetCore.csproj
+++ b/examples/AspNetCore/Examples.AspNetCore.csproj
@@ -2,7 +2,6 @@
 
   <PropertyGroup>
     <TargetFramework>net6.0</TargetFramework>
-    <Nullable>enable</Nullable>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/examples/Console/Examples.Console.csproj b/examples/Console/Examples.Console.csproj
index 8239cd4f5..59cff3d55 100644
--- a/examples/Console/Examples.Console.csproj
+++ b/examples/Console/Examples.Console.csproj
@@ -4,6 +4,9 @@
     <OutputType>Exe</OutputType>
     <TargetFramework>net6.0</TargetFramework>
     <NoWarn>$(NoWarn),CS0618</NoWarn>
+
+    <!-- this is temporary. will remove in future PR. -->
+    <Nullable>disable</Nullable>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/examples/MicroserviceExample/Utils/Utils.csproj b/examples/MicroserviceExample/Utils/Utils.csproj
index e042c91c5..d7df85882 100644
--- a/examples/MicroserviceExample/Utils/Utils.csproj
+++ b/examples/MicroserviceExample/Utils/Utils.csproj
@@ -1,6 +1,9 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
     <TargetFramework>netstandard2.0</TargetFramework>
+
+    <!-- this is temporary. will remove in future PR. -->
+    <Nullable>disable</Nullable>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/src/OpenTelemetry.Api/OpenTelemetry.Api.csproj b/src/OpenTelemetry.Api/OpenTelemetry.Api.csproj
index 561883126..04c193dd9 100644
--- a/src/OpenTelemetry.Api/OpenTelemetry.Api.csproj
+++ b/src/OpenTelemetry.Api/OpenTelemetry.Api.csproj
@@ -9,6 +9,7 @@
     <MinVerTagPrefix>core-</MinVerTagPrefix>
 
     <!-- this is temporary. will remove in future PR. -->
+    <Nullable>disable</Nullable>
     <ImplicitUsings>disable</ImplicitUsings>
   </PropertyGroup>
 
diff --git a/src/OpenTelemetry.Exporter.Console/OpenTelemetry.Exporter.Console.csproj b/src/OpenTelemetry.Exporter.Console/OpenTelemetry.Exporter.Console.csproj
index dfef4946d..849cc8c5d 100644
--- a/src/OpenTelemetry.Exporter.Console/OpenTelemetry.Exporter.Console.csproj
+++ b/src/OpenTelemetry.Exporter.Console/OpenTelemetry.Exporter.Console.csproj
@@ -8,6 +8,7 @@
     <MinVerTagPrefix>core-</MinVerTagPrefix>
 
     <!-- this is temporary. will remove in future PR. -->
+    <Nullable>disable</Nullable>
     <ImplicitUsings>disable</ImplicitUsings>
   </PropertyGroup>
 
diff --git a/src/OpenTelemetry.Exporter.InMemory/OpenTelemetry.Exporter.InMemory.csproj b/src/OpenTelemetry.Exporter.InMemory/OpenTelemetry.Exporter.InMemory.csproj
index c8c480f3e..35e1d93d3 100644
--- a/src/OpenTelemetry.Exporter.InMemory/OpenTelemetry.Exporter.InMemory.csproj
+++ b/src/OpenTelemetry.Exporter.InMemory/OpenTelemetry.Exporter.InMemory.csproj
@@ -8,6 +8,7 @@
     <MinVerTagPrefix>core-</MinVerTagPrefix>
 
     <!-- this is temporary. will remove in future PR. -->
+    <Nullable>disable</Nullable>
     <ImplicitUsings>disable</ImplicitUsings>
   </PropertyGroup>
 
diff --git a/src/OpenTelemetry.Exporter.Jaeger/OpenTelemetry.Exporter.Jaeger.csproj b/src/OpenTelemetry.Exporter.Jaeger/OpenTelemetry.Exporter.Jaeger.csproj
index f4d312e35..5b11451b1 100644
--- a/src/OpenTelemetry.Exporter.Jaeger/OpenTelemetry.Exporter.Jaeger.csproj
+++ b/src/OpenTelemetry.Exporter.Jaeger/OpenTelemetry.Exporter.Jaeger.csproj
@@ -8,6 +8,7 @@
     <MinVerTagPrefix>core-</MinVerTagPrefix>
 
     <!-- this is temporary. will remove in future PR. -->
+    <Nullable>disable</Nullable>
     <ImplicitUsings>disable</ImplicitUsings>
   </PropertyGroup>
 
diff --git a/src/OpenTelemetry.Exporter.OpenTelemetryProtocol.Logs/OpenTelemetry.Exporter.OpenTelemetryProtocol.Logs.csproj b/src/OpenTelemetry.Exporter.OpenTelemetryProtocol.Logs/OpenTelemetry.Exporter.OpenTelemetryProtocol.Logs.csproj
index aea2a9182..a33665657 100644
--- a/src/OpenTelemetry.Exporter.OpenTelemetryProtocol.Logs/OpenTelemetry.Exporter.OpenTelemetryProtocol.Logs.csproj
+++ b/src/OpenTelemetry.Exporter.OpenTelemetryProtocol.Logs/OpenTelemetry.Exporter.OpenTelemetryProtocol.Logs.csproj
@@ -7,6 +7,7 @@
     <MinVerTagPrefix>core-</MinVerTagPrefix>
 
     <!-- this is temporary. will remove in future PR. -->
+    <Nullable>disable</Nullable>
     <ImplicitUsings>disable</ImplicitUsings>
   </PropertyGroup>
 
diff --git a/src/OpenTelemetry.Exporter.OpenTelemetryProtocol/OpenTelemetry.Exporter.OpenTelemetryProtocol.csproj b/src/OpenTelemetry.Exporter.OpenTelemetryProtocol/OpenTelemetry.Exporter.OpenTelemetryProtocol.csproj
index 838085915..4f60f8f8e 100644
--- a/src/OpenTelemetry.Exporter.OpenTelemetryProtocol/OpenTelemetry.Exporter.OpenTelemetryProtocol.csproj
+++ b/src/OpenTelemetry.Exporter.OpenTelemetryProtocol/OpenTelemetry.Exporter.OpenTelemetryProtocol.csproj
@@ -7,6 +7,7 @@
     <MinVerTagPrefix>core-</MinVerTagPrefix>
 
     <!-- this is temporary. will remove in future PR. -->
+    <Nullable>disable</Nullable>
     <ImplicitUsings>disable</ImplicitUsings>
   </PropertyGroup>
 
diff --git a/src/OpenTelemetry.Exporter.Prometheus.AspNetCore/OpenTelemetry.Exporter.Prometheus.AspNetCore.csproj b/src/OpenTelemetry.Exporter.Prometheus.AspNetCore/OpenTelemetry.Exporter.Prometheus.AspNetCore.csproj
index a8ba2606d..556be5a92 100644
--- a/src/OpenTelemetry.Exporter.Prometheus.AspNetCore/OpenTelemetry.Exporter.Prometheus.AspNetCore.csproj
+++ b/src/OpenTelemetry.Exporter.Prometheus.AspNetCore/OpenTelemetry.Exporter.Prometheus.AspNetCore.csproj
@@ -9,6 +9,7 @@
     <DefineConstants>$(DefineConstants);PROMETHEUS_ASPNETCORE</DefineConstants>
 
     <!-- this is temporary. will remove in future PR. -->
+    <Nullable>disable</Nullable>
     <ImplicitUsings>disable</ImplicitUsings>
   </PropertyGroup>
 
diff --git a/src/OpenTelemetry.Exporter.Prometheus.HttpListener/OpenTelemetry.Exporter.Prometheus.HttpListener.csproj b/src/OpenTelemetry.Exporter.Prometheus.HttpListener/OpenTelemetry.Exporter.Prometheus.HttpListener.csproj
index 11cf78f5a..fe22b6b18 100644
--- a/src/OpenTelemetry.Exporter.Prometheus.HttpListener/OpenTelemetry.Exporter.Prometheus.HttpListener.csproj
+++ b/src/OpenTelemetry.Exporter.Prometheus.HttpListener/OpenTelemetry.Exporter.Prometheus.HttpListener.csproj
@@ -8,6 +8,7 @@
     <MinVerTagPrefix>core-</MinVerTagPrefix>
 
     <!-- this is temporary. will remove in future PR. -->
+    <Nullable>disable</Nullable>
     <ImplicitUsings>disable</ImplicitUsings>
   </PropertyGroup>
 
diff --git a/src/OpenTelemetry.Exporter.ZPages/OpenTelemetry.Exporter.ZPages.csproj b/src/OpenTelemetry.Exporter.ZPages/OpenTelemetry.Exporter.ZPages.csproj
index 929dab0be..ec323b75c 100644
--- a/src/OpenTelemetry.Exporter.ZPages/OpenTelemetry.Exporter.ZPages.csproj
+++ b/src/OpenTelemetry.Exporter.ZPages/OpenTelemetry.Exporter.ZPages.csproj
@@ -7,6 +7,7 @@
     <PackageTags>$(PackageTags);ZPages;distributed-tracing</PackageTags>
 
     <!-- this is temporary. will remove in future PR. -->
+    <Nullable>disable</Nullable>
     <ImplicitUsings>disable</ImplicitUsings>
   </PropertyGroup>
 
diff --git a/src/OpenTelemetry.Exporter.Zipkin/OpenTelemetry.Exporter.Zipkin.csproj b/src/OpenTelemetry.Exporter.Zipkin/OpenTelemetry.Exporter.Zipkin.csproj
index 873fd758e..f4b27546b 100644
--- a/src/OpenTelemetry.Exporter.Zipkin/OpenTelemetry.Exporter.Zipkin.csproj
+++ b/src/OpenTelemetry.Exporter.Zipkin/OpenTelemetry.Exporter.Zipkin.csproj
@@ -7,6 +7,7 @@
     <MinVerTagPrefix>core-</MinVerTagPrefix>
 
     <!-- this is temporary. will remove in future PR. -->
+    <Nullable>disable</Nullable>
     <ImplicitUsings>disable</ImplicitUsings>
   </PropertyGroup>
 
diff --git a/src/OpenTelemetry.Extensions.Hosting/OpenTelemetry.Extensions.Hosting.csproj b/src/OpenTelemetry.Extensions.Hosting/OpenTelemetry.Extensions.Hosting.csproj
index b8b821c3a..cbef7b08d 100644
--- a/src/OpenTelemetry.Extensions.Hosting/OpenTelemetry.Extensions.Hosting.csproj
+++ b/src/OpenTelemetry.Extensions.Hosting/OpenTelemetry.Extensions.Hosting.csproj
@@ -6,6 +6,7 @@
     <RootNamespace>OpenTelemetry</RootNamespace>
 
     <!-- this is temporary. will remove in future PR. -->
+    <Nullable>disable</Nullable>
     <ImplicitUsings>disable</ImplicitUsings>
   </PropertyGroup>
 
diff --git a/src/OpenTelemetry.Extensions.Propagators/OpenTelemetry.Extensions.Propagators.csproj b/src/OpenTelemetry.Extensions.Propagators/OpenTelemetry.Extensions.Propagators.csproj
index f324f542d..7247ecd8f 100644
--- a/src/OpenTelemetry.Extensions.Propagators/OpenTelemetry.Extensions.Propagators.csproj
+++ b/src/OpenTelemetry.Extensions.Propagators/OpenTelemetry.Extensions.Propagators.csproj
@@ -8,6 +8,7 @@
     <IncludeInstrumentationHelpers>true</IncludeInstrumentationHelpers>
 
     <!-- this is temporary. will remove in future PR. -->
+    <Nullable>disable</Nullable>
     <ImplicitUsings>disable</ImplicitUsings>
   </PropertyGroup>
 
diff --git a/src/OpenTelemetry.Instrumentation.AspNetCore/OpenTelemetry.Instrumentation.AspNetCore.csproj b/src/OpenTelemetry.Instrumentation.AspNetCore/OpenTelemetry.Instrumentation.AspNetCore.csproj
index 6e071291e..2c6190af3 100644
--- a/src/OpenTelemetry.Instrumentation.AspNetCore/OpenTelemetry.Instrumentation.AspNetCore.csproj
+++ b/src/OpenTelemetry.Instrumentation.AspNetCore/OpenTelemetry.Instrumentation.AspNetCore.csproj
@@ -7,6 +7,7 @@
     <IncludeDiagnosticSourceInstrumentationHelpers>true</IncludeDiagnosticSourceInstrumentationHelpers>
 
     <!-- this is temporary. will remove in future PR. -->
+    <Nullable>disable</Nullable>
     <ImplicitUsings>disable</ImplicitUsings>
   </PropertyGroup>
 
diff --git a/src/OpenTelemetry.Instrumentation.GrpcNetClient/OpenTelemetry.Instrumentation.GrpcNetClient.csproj b/src/OpenTelemetry.Instrumentation.GrpcNetClient/OpenTelemetry.Instrumentation.GrpcNetClient.csproj
index 68f383c26..5475e389f 100644
--- a/src/OpenTelemetry.Instrumentation.GrpcNetClient/OpenTelemetry.Instrumentation.GrpcNetClient.csproj
+++ b/src/OpenTelemetry.Instrumentation.GrpcNetClient/OpenTelemetry.Instrumentation.GrpcNetClient.csproj
@@ -7,6 +7,7 @@
     <IncludeDiagnosticSourceInstrumentationHelpers>true</IncludeDiagnosticSourceInstrumentationHelpers>
 
     <!-- this is temporary. will remove in future PR. -->
+    <Nullable>disable</Nullable>
     <ImplicitUsings>disable</ImplicitUsings>
   </PropertyGroup>
 
diff --git a/src/OpenTelemetry.Instrumentation.Http/OpenTelemetry.Instrumentation.Http.csproj b/src/OpenTelemetry.Instrumentation.Http/OpenTelemetry.Instrumentation.Http.csproj
index da1844174..724b901f9 100644
--- a/src/OpenTelemetry.Instrumentation.Http/OpenTelemetry.Instrumentation.Http.csproj
+++ b/src/OpenTelemetry.Instrumentation.Http/OpenTelemetry.Instrumentation.Http.csproj
@@ -8,6 +8,7 @@
     <IncludeDiagnosticSourceInstrumentationHelpers>true</IncludeDiagnosticSourceInstrumentationHelpers>
 
     <!-- this is temporary. will remove in future PR. -->
+    <Nullable>disable</Nullable>
     <ImplicitUsings>disable</ImplicitUsings>
   </PropertyGroup>
 
diff --git a/src/OpenTelemetry.Instrumentation.SqlClient/OpenTelemetry.Instrumentation.SqlClient.csproj b/src/OpenTelemetry.Instrumentation.SqlClient/OpenTelemetry.Instrumentation.SqlClient.csproj
index 1d03fc49e..a986f0ebf 100644
--- a/src/OpenTelemetry.Instrumentation.SqlClient/OpenTelemetry.Instrumentation.SqlClient.csproj
+++ b/src/OpenTelemetry.Instrumentation.SqlClient/OpenTelemetry.Instrumentation.SqlClient.csproj
@@ -8,6 +8,7 @@
     <IncludeDiagnosticSourceInstrumentationHelpers>true</IncludeDiagnosticSourceInstrumentationHelpers>
 
     <!-- this is temporary. will remove in future PR. -->
+    <Nullable>disable</Nullable>
     <ImplicitUsings>disable</ImplicitUsings>
   </PropertyGroup>
 
diff --git a/src/OpenTelemetry.Shims.OpenTracing/OpenTelemetry.Shims.OpenTracing.csproj b/src/OpenTelemetry.Shims.OpenTracing/OpenTelemetry.Shims.OpenTracing.csproj
index 31293160f..5b7e1a27a 100644
--- a/src/OpenTelemetry.Shims.OpenTracing/OpenTelemetry.Shims.OpenTracing.csproj
+++ b/src/OpenTelemetry.Shims.OpenTracing/OpenTelemetry.Shims.OpenTracing.csproj
@@ -11,6 +11,7 @@
     <NoWarn>$(NoWarn),1591</NoWarn>
 
     <!-- this is temporary. will remove in future PR. -->
+    <Nullable>disable</Nullable>
     <ImplicitUsings>disable</ImplicitUsings>
   </PropertyGroup>
 
diff --git a/src/OpenTelemetry/OpenTelemetry.csproj b/src/OpenTelemetry/OpenTelemetry.csproj
index 1de7304eb..a2a066533 100644
--- a/src/OpenTelemetry/OpenTelemetry.csproj
+++ b/src/OpenTelemetry/OpenTelemetry.csproj
@@ -10,6 +10,7 @@
     <MinVerTagPrefix>core-</MinVerTagPrefix>
 
     <!-- this is temporary. will remove in future PR. -->
+    <Nullable>disable</Nullable>
     <ImplicitUsings>disable</ImplicitUsings>
   </PropertyGroup>
 
diff --git a/test/Benchmarks/Benchmarks.csproj b/test/Benchmarks/Benchmarks.csproj
index 1e35e95aa..7d6377fa7 100644
--- a/test/Benchmarks/Benchmarks.csproj
+++ b/test/Benchmarks/Benchmarks.csproj
@@ -4,6 +4,9 @@
     <OutputType>Exe</OutputType>
     <!-- OmniSharp/VS Code requires TargetFrameworks to be in descending order for IntelliSense and analysis. -->
     <TargetFrameworks>net7.0;net6.0;net462</TargetFrameworks>
+
+    <!-- this is temporary. will remove in future PR. -->
+    <Nullable>disable</Nullable>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/test/OpenTelemetry.Exporter.Console.Tests/OpenTelemetry.Exporter.Console.Tests.csproj b/test/OpenTelemetry.Exporter.Console.Tests/OpenTelemetry.Exporter.Console.Tests.csproj
index e8f376aaa..6a485d188 100644
--- a/test/OpenTelemetry.Exporter.Console.Tests/OpenTelemetry.Exporter.Console.Tests.csproj
+++ b/test/OpenTelemetry.Exporter.Console.Tests/OpenTelemetry.Exporter.Console.Tests.csproj
@@ -5,7 +5,6 @@
     <!-- OmniSharp/VS Code requires TargetFrameworks to be in descending order for IntelliSense and analysis. -->
     <TargetFrameworks>net7.0;net6.0</TargetFrameworks>
     <TargetFrameworks Condition="$(OS) == 'Windows_NT'">$(TargetFrameworks);net462</TargetFrameworks>
-    <Nullable>enable</Nullable>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/test/OpenTelemetry.Exporter.Jaeger.Tests/OpenTelemetry.Exporter.Jaeger.Tests.csproj b/test/OpenTelemetry.Exporter.Jaeger.Tests/OpenTelemetry.Exporter.Jaeger.Tests.csproj
index 6b9abaee7..a6ad5108b 100644
--- a/test/OpenTelemetry.Exporter.Jaeger.Tests/OpenTelemetry.Exporter.Jaeger.Tests.csproj
+++ b/test/OpenTelemetry.Exporter.Jaeger.Tests/OpenTelemetry.Exporter.Jaeger.Tests.csproj
@@ -4,6 +4,9 @@
     <!-- OmniSharp/VS Code requires TargetFrameworks to be in descending order for IntelliSense and analysis. -->
     <TargetFrameworks>net7.0;net6.0</TargetFrameworks>
     <TargetFrameworks Condition="$(OS) == 'Windows_NT'">$(TargetFrameworks);net462</TargetFrameworks>
+
+    <!-- this is temporary. will remove in future PR. -->
+    <Nullable>disable</Nullable>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/test/OpenTelemetry.Exporter.OpenTelemetryProtocol.Tests/OpenTelemetry.Exporter.OpenTelemetryProtocol.Tests.csproj b/test/OpenTelemetry.Exporter.OpenTelemetryProtocol.Tests/OpenTelemetry.Exporter.OpenTelemetryProtocol.Tests.csproj
index 5f58fd8ed..57d0af944 100644
--- a/test/OpenTelemetry.Exporter.OpenTelemetryProtocol.Tests/OpenTelemetry.Exporter.OpenTelemetryProtocol.Tests.csproj
+++ b/test/OpenTelemetry.Exporter.OpenTelemetryProtocol.Tests/OpenTelemetry.Exporter.OpenTelemetryProtocol.Tests.csproj
@@ -5,6 +5,9 @@
     <TargetFrameworks Condition="$(TARGET_FRAMEWORK) == ''">net7.0;net6.0</TargetFrameworks>
     <TargetFrameworks Condition="$(TARGET_FRAMEWORK) == '' AND $(OS) == 'Windows_NT'">$(TargetFrameworks);net462</TargetFrameworks>
     <TargetFrameworks Condition="$(TARGET_FRAMEWORK) != ''">$(TARGET_FRAMEWORK)</TargetFrameworks>
+
+    <!-- this is temporary. will remove in future PR. -->
+    <Nullable>disable</Nullable>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/test/OpenTelemetry.Exporter.Prometheus.AspNetCore.Tests/OpenTelemetry.Exporter.Prometheus.AspNetCore.Tests.csproj b/test/OpenTelemetry.Exporter.Prometheus.AspNetCore.Tests/OpenTelemetry.Exporter.Prometheus.AspNetCore.Tests.csproj
index 16b75375a..3a5fa0943 100644
--- a/test/OpenTelemetry.Exporter.Prometheus.AspNetCore.Tests/OpenTelemetry.Exporter.Prometheus.AspNetCore.Tests.csproj
+++ b/test/OpenTelemetry.Exporter.Prometheus.AspNetCore.Tests/OpenTelemetry.Exporter.Prometheus.AspNetCore.Tests.csproj
@@ -4,6 +4,9 @@
     <!-- OmniSharp/VS Code requires TargetFrameworks to be in descending order for IntelliSense and analysis. -->
     <TargetFrameworks>net6.0</TargetFrameworks>
     <DefineConstants>$(DefineConstants);PROMETHEUS_ASPNETCORE</DefineConstants>
+
+    <!-- this is temporary. will remove in future PR. -->
+    <Nullable>disable</Nullable>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/test/OpenTelemetry.Exporter.Prometheus.HttpListener.Tests/OpenTelemetry.Exporter.Prometheus.HttpListener.Tests.csproj b/test/OpenTelemetry.Exporter.Prometheus.HttpListener.Tests/OpenTelemetry.Exporter.Prometheus.HttpListener.Tests.csproj
index 4e4a5d37c..6021ca01b 100644
--- a/test/OpenTelemetry.Exporter.Prometheus.HttpListener.Tests/OpenTelemetry.Exporter.Prometheus.HttpListener.Tests.csproj
+++ b/test/OpenTelemetry.Exporter.Prometheus.HttpListener.Tests/OpenTelemetry.Exporter.Prometheus.HttpListener.Tests.csproj
@@ -4,6 +4,9 @@
     <!-- OmniSharp/VS Code requires TargetFrameworks to be in descending order for IntelliSense and analysis. -->
     <TargetFrameworks>net7.0;net6.0;net462</TargetFrameworks>
     <DefineConstants>$(DefineConstants);PROMETHEUS_HTTP_LISTENER</DefineConstants>
+
+    <!-- this is temporary. will remove in future PR. -->
+    <Nullable>disable</Nullable>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/test/OpenTelemetry.Exporter.ZPages.Tests/OpenTelemetry.Exporter.ZPages.Tests.csproj b/test/OpenTelemetry.Exporter.ZPages.Tests/OpenTelemetry.Exporter.ZPages.Tests.csproj
index dca1ff0d2..2582e381c 100644
--- a/test/OpenTelemetry.Exporter.ZPages.Tests/OpenTelemetry.Exporter.ZPages.Tests.csproj
+++ b/test/OpenTelemetry.Exporter.ZPages.Tests/OpenTelemetry.Exporter.ZPages.Tests.csproj
@@ -4,6 +4,9 @@
     <!-- OmniSharp/VS Code requires TargetFrameworks to be in descending order for IntelliSense and analysis. -->
     <TargetFrameworks>net6.0</TargetFrameworks>
     <TargetFrameworks Condition="$(OS) == 'Windows_NT'">$(TargetFrameworks);net462</TargetFrameworks>
+
+    <!-- this is temporary. will remove in future PR. -->
+    <Nullable>disable</Nullable>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/test/OpenTelemetry.Exporter.Zipkin.Tests/OpenTelemetry.Exporter.Zipkin.Tests.csproj b/test/OpenTelemetry.Exporter.Zipkin.Tests/OpenTelemetry.Exporter.Zipkin.Tests.csproj
index b29b7835f..f5b32a004 100644
--- a/test/OpenTelemetry.Exporter.Zipkin.Tests/OpenTelemetry.Exporter.Zipkin.Tests.csproj
+++ b/test/OpenTelemetry.Exporter.Zipkin.Tests/OpenTelemetry.Exporter.Zipkin.Tests.csproj
@@ -4,6 +4,9 @@
     <!-- OmniSharp/VS Code requires TargetFrameworks to be in descending order for IntelliSense and analysis. -->
     <TargetFrameworks>net7.0;net6.0</TargetFrameworks>
     <TargetFrameworks Condition="$(OS) == 'Windows_NT'">$(TargetFrameworks);net462</TargetFrameworks>
+
+    <!-- this is temporary. will remove in future PR. -->
+    <Nullable>disable</Nullable>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/test/OpenTelemetry.Extensions.Hosting.Tests/OpenTelemetry.Extensions.Hosting.Tests.csproj b/test/OpenTelemetry.Extensions.Hosting.Tests/OpenTelemetry.Extensions.Hosting.Tests.csproj
index ec1a483e1..ae38b6440 100644
--- a/test/OpenTelemetry.Extensions.Hosting.Tests/OpenTelemetry.Extensions.Hosting.Tests.csproj
+++ b/test/OpenTelemetry.Extensions.Hosting.Tests/OpenTelemetry.Extensions.Hosting.Tests.csproj
@@ -4,6 +4,9 @@
     <!-- OmniSharp/VS Code requires TargetFrameworks to be in descending order for IntelliSense and analysis. -->
     <TargetFrameworks>net7.0;net6.0</TargetFrameworks>
     <TargetFrameworks Condition="$(OS) == 'Windows_NT'">$(TargetFrameworks);net462</TargetFrameworks>
+
+    <!-- this is temporary. will remove in future PR. -->
+    <Nullable>disable</Nullable>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/test/OpenTelemetry.Extensions.Propagators.Tests/OpenTelemetry.Extensions.Propagators.Tests.csproj b/test/OpenTelemetry.Extensions.Propagators.Tests/OpenTelemetry.Extensions.Propagators.Tests.csproj
index ef8e21890..932ccfeda 100644
--- a/test/OpenTelemetry.Extensions.Propagators.Tests/OpenTelemetry.Extensions.Propagators.Tests.csproj
+++ b/test/OpenTelemetry.Extensions.Propagators.Tests/OpenTelemetry.Extensions.Propagators.Tests.csproj
@@ -4,6 +4,9 @@
     <!-- OmniSharp/VS Code requires TargetFrameworks to be in descending order for IntelliSense and analysis. -->
     <TargetFrameworks Condition="$(TARGET_FRAMEWORK) == ''">net7.0;net6.0;net462</TargetFrameworks>
     <TargetFrameworks Condition="$(TARGET_FRAMEWORK) != ''">$(TARGET_FRAMEWORK)</TargetFrameworks>
+
+    <!-- this is temporary. will remove in future PR. -->
+    <Nullable>disable</Nullable>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/test/OpenTelemetry.Instrumentation.AspNetCore.Tests/OpenTelemetry.Instrumentation.AspNetCore.Tests.csproj b/test/OpenTelemetry.Instrumentation.AspNetCore.Tests/OpenTelemetry.Instrumentation.AspNetCore.Tests.csproj
index 25de7e186..849aaa489 100644
--- a/test/OpenTelemetry.Instrumentation.AspNetCore.Tests/OpenTelemetry.Instrumentation.AspNetCore.Tests.csproj
+++ b/test/OpenTelemetry.Instrumentation.AspNetCore.Tests/OpenTelemetry.Instrumentation.AspNetCore.Tests.csproj
@@ -3,6 +3,9 @@
     <Description>Unit test project for OpenTelemetry ASP.NET Core instrumentation</Description>
     <!-- OmniSharp/VS Code requires TargetFrameworks to be in descending order for IntelliSense and analysis. -->
     <TargetFrameworks>net7.0;net6.0</TargetFrameworks>
+
+    <!-- this is temporary. will remove in future PR. -->
+    <Nullable>disable</Nullable>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/test/OpenTelemetry.Instrumentation.Grpc.Tests/OpenTelemetry.Instrumentation.Grpc.Tests.csproj b/test/OpenTelemetry.Instrumentation.Grpc.Tests/OpenTelemetry.Instrumentation.Grpc.Tests.csproj
index b779f2eba..7481c5983 100644
--- a/test/OpenTelemetry.Instrumentation.Grpc.Tests/OpenTelemetry.Instrumentation.Grpc.Tests.csproj
+++ b/test/OpenTelemetry.Instrumentation.Grpc.Tests/OpenTelemetry.Instrumentation.Grpc.Tests.csproj
@@ -5,6 +5,9 @@
     <TargetFrameworks>net7.0;net6.0</TargetFrameworks>
     <TargetFrameworks Condition="$(OS) == 'Windows_NT'">$(TargetFrameworks);net462</TargetFrameworks>
     <NoWarn>$(NoWarn),CS8981</NoWarn>
+
+    <!-- this is temporary. will remove in future PR. -->
+    <Nullable>disable</Nullable>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/test/OpenTelemetry.Instrumentation.Http.Tests/OpenTelemetry.Instrumentation.Http.Tests.csproj b/test/OpenTelemetry.Instrumentation.Http.Tests/OpenTelemetry.Instrumentation.Http.Tests.csproj
index 485a3bf6d..b793490d5 100644
--- a/test/OpenTelemetry.Instrumentation.Http.Tests/OpenTelemetry.Instrumentation.Http.Tests.csproj
+++ b/test/OpenTelemetry.Instrumentation.Http.Tests/OpenTelemetry.Instrumentation.Http.Tests.csproj
@@ -4,6 +4,9 @@
     <!-- OmniSharp/VS Code requires TargetFrameworks to be in descending order for IntelliSense and analysis. -->
     <TargetFrameworks>net7.0;net6.0</TargetFrameworks>
     <TargetFrameworks Condition="$(OS) == 'Windows_NT'">$(TargetFrameworks);net462</TargetFrameworks>
+
+    <!-- this is temporary. will remove in future PR. -->
+    <Nullable>disable</Nullable>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/test/OpenTelemetry.Instrumentation.SqlClient.Tests/OpenTelemetry.Instrumentation.SqlClient.Tests.csproj b/test/OpenTelemetry.Instrumentation.SqlClient.Tests/OpenTelemetry.Instrumentation.SqlClient.Tests.csproj
index 7e8ff7eda..3d0c9a1ac 100644
--- a/test/OpenTelemetry.Instrumentation.SqlClient.Tests/OpenTelemetry.Instrumentation.SqlClient.Tests.csproj
+++ b/test/OpenTelemetry.Instrumentation.SqlClient.Tests/OpenTelemetry.Instrumentation.SqlClient.Tests.csproj
@@ -5,6 +5,9 @@
     <TargetFrameworks Condition="$(TARGET_FRAMEWORK) == ''">net7.0;net6.0</TargetFrameworks>
     <TargetFrameworks Condition="$(TARGET_FRAMEWORK) == '' and $(OS) == 'Windows_NT'">$(TargetFrameworks);net462</TargetFrameworks>
     <TargetFrameworks Condition="$(TARGET_FRAMEWORK) != ''">$(TARGET_FRAMEWORK)</TargetFrameworks>
+
+    <!-- this is temporary. will remove in future PR. -->
+    <Nullable>disable</Nullable>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/test/OpenTelemetry.Instrumentation.W3cTraceContext.Tests/OpenTelemetry.Instrumentation.W3cTraceContext.Tests.csproj b/test/OpenTelemetry.Instrumentation.W3cTraceContext.Tests/OpenTelemetry.Instrumentation.W3cTraceContext.Tests.csproj
index 1e4eaadcc..9c9829e79 100644
--- a/test/OpenTelemetry.Instrumentation.W3cTraceContext.Tests/OpenTelemetry.Instrumentation.W3cTraceContext.Tests.csproj
+++ b/test/OpenTelemetry.Instrumentation.W3cTraceContext.Tests/OpenTelemetry.Instrumentation.W3cTraceContext.Tests.csproj
@@ -5,6 +5,9 @@
     <!-- OmniSharp/VS Code requires TargetFrameworks to be in descending order for IntelliSense and analysis. -->
     <TargetFrameworks Condition="$(TARGET_FRAMEWORK) == ''">net7.0;net6.0</TargetFrameworks>
     <TargetFrameworks Condition="$(TARGET_FRAMEWORK) != ''">$(TARGET_FRAMEWORK)</TargetFrameworks>
+
+    <!-- this is temporary. will remove in future PR. -->
+    <Nullable>disable</Nullable>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/test/OpenTelemetry.Shims.OpenTracing.Tests/OpenTelemetry.Shims.OpenTracing.Tests.csproj b/test/OpenTelemetry.Shims.OpenTracing.Tests/OpenTelemetry.Shims.OpenTracing.Tests.csproj
index 8deed5972..3c7286b5d 100644
--- a/test/OpenTelemetry.Shims.OpenTracing.Tests/OpenTelemetry.Shims.OpenTracing.Tests.csproj
+++ b/test/OpenTelemetry.Shims.OpenTracing.Tests/OpenTelemetry.Shims.OpenTracing.Tests.csproj
@@ -3,6 +3,9 @@
     <Description>Unit test project for OpenTelemetry.Shims.OpenTracing</Description>
     <!-- OmniSharp/VS Code requires TargetFrameworks to be in descending order for IntelliSense and analysis. -->
     <TargetFrameworks>net7.0;net6.0</TargetFrameworks>
+
+    <!-- this is temporary. will remove in future PR. -->
+    <Nullable>disable</Nullable>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/test/OpenTelemetry.Tests.Stress.Logs/OpenTelemetry.Tests.Stress.Logs.csproj b/test/OpenTelemetry.Tests.Stress.Logs/OpenTelemetry.Tests.Stress.Logs.csproj
index ce4b46faf..b59fa86ee 100644
--- a/test/OpenTelemetry.Tests.Stress.Logs/OpenTelemetry.Tests.Stress.Logs.csproj
+++ b/test/OpenTelemetry.Tests.Stress.Logs/OpenTelemetry.Tests.Stress.Logs.csproj
@@ -4,6 +4,9 @@
     <OutputType>Exe</OutputType>
     <!-- OmniSharp/VS Code requires TargetFrameworks to be in descending order for IntelliSense and analysis. -->
     <TargetFrameworks>net7.0;net6.0;net462</TargetFrameworks>
+
+    <!-- this is temporary. will remove in future PR. -->
+    <Nullable>disable</Nullable>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/test/OpenTelemetry.Tests.Stress.Metrics/OpenTelemetry.Tests.Stress.Metrics.csproj b/test/OpenTelemetry.Tests.Stress.Metrics/OpenTelemetry.Tests.Stress.Metrics.csproj
index c4062c712..8b3639d03 100644
--- a/test/OpenTelemetry.Tests.Stress.Metrics/OpenTelemetry.Tests.Stress.Metrics.csproj
+++ b/test/OpenTelemetry.Tests.Stress.Metrics/OpenTelemetry.Tests.Stress.Metrics.csproj
@@ -4,6 +4,9 @@
     <OutputType>Exe</OutputType>
     <!-- OmniSharp/VS Code requires TargetFrameworks to be in descending order for IntelliSense and analysis. -->
     <TargetFrameworks>net7.0;net6.0;net462</TargetFrameworks>
+
+    <!-- this is temporary. will remove in future PR. -->
+    <Nullable>disable</Nullable>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/test/OpenTelemetry.Tests/OpenTelemetry.Tests.csproj b/test/OpenTelemetry.Tests/OpenTelemetry.Tests.csproj
index ffc97ae36..c87707d50 100644
--- a/test/OpenTelemetry.Tests/OpenTelemetry.Tests.csproj
+++ b/test/OpenTelemetry.Tests/OpenTelemetry.Tests.csproj
@@ -5,6 +5,9 @@
     <TargetFrameworks>net7.0;net6.0</TargetFrameworks>
     <TargetFrameworks Condition="$(OS) == 'Windows_NT'">$(TargetFrameworks);net462</TargetFrameworks>
     <NoWarn>$(NoWarn),CS0618</NoWarn>
+
+    <!-- this is temporary. will remove in future PR. -->
+    <Nullable>disable</Nullable>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/test/TestApp.AspNetCore/TestApp.AspNetCore.csproj b/test/TestApp.AspNetCore/TestApp.AspNetCore.csproj
index 87fe66f71..e8bf6e701 100644
--- a/test/TestApp.AspNetCore/TestApp.AspNetCore.csproj
+++ b/test/TestApp.AspNetCore/TestApp.AspNetCore.csproj
@@ -2,7 +2,6 @@
 
   <PropertyGroup>
     <TargetFrameworks>net7.0;net6.0</TargetFrameworks>
-    <Nullable>enable</Nullable>
   </PropertyGroup>
 
   <ItemGroup>