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Context: dotnet/android#8279

This reverts commit 8c9eece.

Near the end of .NET 8 RC 1, the .NET 8 SDK depends on nightly packages for .NET 6 and .NET 7:

  • dotnet/runtime 7.0.11
  • dotnet/runtime 6.0.22

These come from feeds such as:

<!-- Added manually for dotnet/runtime 7.0.11 -->
<add key="darc-pub-dotnet-runtime-a2ad4f0" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/darc-pub-dotnet-runtime-a2ad4f03/nuget/v3/index.json" />
<!-- Added manually for dotnet/runtime 6.0.22 -->
<add key="darc-pub-dotnet-runtime-762f437" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/darc-pub-dotnet-runtime-762f4379/nuget/v3/index.json" />

The version number is stable, so the .NET releng team has infrastructure to create a new feed per git commit.

Unfortunately, this makes NuGet central package management unusable for us. 😢

As seen in dotnet/android#8279, we get errors like:

Package source mapping matches found for package ID 'Microsoft.NETCore.App.Ref' are: 'dotnet-public'.
...
external\Java.Interop\src\Java.Interop.Tools.Expressions\Java.Interop.Tools.Expressions.csproj error NU1102: Unable to find package Microsoft.NETCore.App.Ref with version (= 7.0.11)
- Found 83 version(s) in dotnet-public [ Nearest version: 8.0.0-preview.1.23110.8 ]
- Versions from dotnet-eng were not considered [Xamarin.Android.sln]

This is because it can only possibly resolve this package from dotnet-public:

<packageSource key="dotnet-public">
  <package pattern="*" />
</packageSource>

Because 7.0.11 hasn't shipped yet, it is not on NuGet.org or dotnet-public.

For this to work, we would somehow need this added to the java.interop repo at the time xamarin/xamarin-android gets a newer .NET 8 SDK:

<packageSource key="darc-pub-dotnet-runtime-a2ad4f0">
  <package pattern="Microsoft.NETCore.App.Ref" />
</packageSource>

For now, let's revert 8c9eece. Maybe there is some solution we can come up with to use this in the future.

Context: dotnet/android#8279

This reverts commit 8c9eece.

Near the end of .NET 8 RC 1, the .NET 8 SDK depends on nightly packages
for .NET 6 and .NET 7:

* dotnet/runtime 7.0.11
* dotnet/runtime 6.0.22

These come from feeds such as:

    <!-- Added manually for dotnet/runtime 7.0.11 -->
    <add key="darc-pub-dotnet-runtime-a2ad4f0" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/darc-pub-dotnet-runtime-a2ad4f03/nuget/v3/index.json" />
    <!-- Added manually for dotnet/runtime 6.0.22 -->
    <add key="darc-pub-dotnet-runtime-762f437" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/darc-pub-dotnet-runtime-762f4379/nuget/v3/index.json" />

The version number is stable, so the .NET releng team has infrastructure
to create a new feed per git commit.

Unfortunately, this makes NuGet central package management unusable for
us. 😢

As seen in dotnet/android#8279, we get errors like:

    Package source mapping matches found for package ID 'Microsoft.NETCore.App.Ref' are: 'dotnet-public'.
    ...
    external\Java.Interop\src\Java.Interop.Tools.Expressions\Java.Interop.Tools.Expressions.csproj error NU1102: Unable to find package Microsoft.NETCore.App.Ref with version (= 7.0.11)
    - Found 83 version(s) in dotnet-public [ Nearest version: 8.0.0-preview.1.23110.8 ]
    - Versions from dotnet-eng were not considered [Xamarin.Android.sln]

This is because it can only possibly resolve this package from
`dotnet-public`:

    <packageSource key="dotnet-public">
      <package pattern="*" />
    </packageSource>

Because 7.0.11 hasn't shipped yet, it is not on NuGet.org or `dotnet-public`.

For this to work, we would somehow need this added to the java.interop
repo at the time xamarin/xamarin-android gets a newer .NET 8 SDK:

    <packageSource key="darc-pub-dotnet-runtime-a2ad4f0">
      <package pattern="Microsoft.NETCore.App.Ref" />
    </packageSource>

For now, let's revert 8c9eece. Maybe there is some solution we can come
up with to use this in the future.
@jonpryor jonpryor merged commit 7e3bd2f into dotnet:main Aug 23, 2023
jonpryor added a commit to jonpryor/xamarin-android that referenced this pull request Sep 1, 2023
Changes: dotnet/java-interop@5adb4d4...5bb0d24

  * dotnet/java-interop@5bb0d24b: [build] Add support for JDK 17 (dotnet/java-interop#1141)
  * dotnet/java-interop@7e3bd2f2: Revert "[build] Enable NuGet's Central Package Management (dotnet/java-interop#1114)" (dotnet/java-interop#1138)
  * dotnet/java-interop@7961b360: [build] set `$(DisableTransitiveFrameworkReferenceDownloads)`=true (dotnet/java-interop#1137)

Context: dotnet#8304
Context: dotnet#8029
Context: https://web.archive.org/web/20230507035529/https://developer.android.com/studio/releases/#jdk-17

> Starting from Android Studio Flamingo Canary 3, the Studio IDE is
> bundled with JDK 17.

Because of dotnet#8029 we know we *can* use JDK 17.

Because of dotnet#8304 we know we *should* use JDK 17.

Update `xaprepare` so that Microsoft OpenJDK 17.0.8 is provisioned
for the build.  Note: `$(_JavacSourceVersion)` and
`$(_JavacTargetVersion)` are *not* changed, so that our built
`.jar` tooling can still *run* on JDK-11.

Update to use Gradle 8.1.1.  This is needed for JDK-17 support.

Update `$(LatestSupportedJavaVersion)` to 17.0.99 so that JDK 17 can
be used by .NET Android projects by default.
jonpryor added a commit to dotnet/android that referenced this pull request Sep 2, 2023
Changes: dotnet/java-interop@5adb4d4...5bb0d24

  * dotnet/java-interop@5bb0d24b: [build] Add support for JDK 17 (dotnet/java-interop#1141)
  * dotnet/java-interop@7e3bd2f2: Revert "[build] Enable NuGet's Central Package Management (dotnet/java-interop#1114)" (dotnet/java-interop#1138)
  * dotnet/java-interop@7961b360: [build] set `$(DisableTransitiveFrameworkReferenceDownloads)`=true (dotnet/java-interop#1137)

Context: #8304
Context: #8029
Context: https://web.archive.org/web/20230507035529/https://developer.android.com/studio/releases/#jdk-17

> Starting from Android Studio Flamingo Canary 3, the Studio IDE is
> bundled with JDK 17.

Because of #8029 we know we *can* use JDK 17.

Because of #8304 we know we *should* use JDK 17.

Update `xaprepare` so that Microsoft OpenJDK 17.0.8 is provisioned
for the build.  Note: `$(_JavacSourceVersion)` and
`$(_JavacTargetVersion)` are *not* changed, so that our built
`.jar` tooling can still *run* on JDK-11.

Update to use Gradle 8.1.1.  This is needed for JDK-17 support.

Update `$(LatestSupportedJavaVersion)` to 17.0.99 so that JDK 17 can
be used by .NET Android projects by default.
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