Bump to xamarin/xamarin-android-tools/main@d92fc3e3 (dotnet#823)

Context: https://developercommunity.visualstudio.com/t/illegal-character-exception-in-xamarinandroid-afte/1363149

Changes: dotnet/android-tools@554d45a...d92fc3e

  * dotnet/android-tools@d92fc3e: [Xamarin.Android.Tools.AndroidSdk] Probe for AdoptOpenJDK Locations (dotnet#115)
  * dotnet/android-tools@dca30d9: [Xamarin.Android.Tools.AndroidSdk] Probe for Zulu JDK (dotnet#114)
  * dotnet/android-tools@237642c: [Xamarin.Android.Tools.AndroidSdk] Probe for Microsoft OpenJDK dirs (dotnet#113)
  * dotnet/android-tools@e618e00: [Xamarin.Android.Tools.AndroidSdk] Fix quotes in %PATH% or %PATHEXT% (dotnet#112)

Finally, *prefer* JDK 8, as hilarious as that is, for two reasons:

 1. `gradlew` fails to execute when running under OpenJDK 14:

        [ERROR] [system.err] java.lang.NoClassDefFoundError: Could not initialize class org.codehaus.groovy.vmplugin.v7.Java7

 2. The unit tests added in 69e1b80 currently depend upon the XML
    formatting conventions of JDK 8, and the tests fail when running
    under JDK 11 because of whitespace changes in `javax.xml` output.

For now, it's currently easier to just require JDK 8.

The preferred JDK version is controlled by the new `$(MaxJdkVersion)`
YAML variable, which in turn sets `$(JI_MAX_JDK)` (55c56f7) and/or
the `$(MaxJdkVersion)` MSBuild property, which
`dotnet build -t:Prepare` uses to generate `bin/Build*/JdkInfo.props`.

Finally, *for consistency*, update `TestJVM` to look for the generated
`JdkInfo.props`.  If found, use the `$(JdkJvmPath)` value at
`/Project/Chooose/When/PropertyGroup/JdkJvmPath` instead of using
`JdkInfo.GetKnownSystemJdkInfos()`, so that the JVM that we built
against is also used for unit test execution.

build-tools/automation/azure-pipelines.yaml

@@ -18,6 +18,7 @@ pr:
 variables:
   RunningOnCI: true
   Build.Configuration: Release
+  MaxJdkVersion: 8
   DotNetCoreVersion: 5.0.103
   HostedMacImage: macOS-10.15
   HostedWinVS2019: Hosted Windows 2019 with VS2019
@@ -108,15 +109,15 @@ jobs:
 
   - template: templates\install-dependencies.yaml
 
-  - script: make prepare CONFIGURATION=$(Build.Configuration)
+  - script: make prepare CONFIGURATION=$(Build.Configuration) JI_MAX_JDK=$(MaxJdkVersion)
     displayName: make prepare
 
-  - script: make all CONFIGURATION=$(Build.Configuration)
+  - script: make all CONFIGURATION=$(Build.Configuration) JI_MAX_JDK=$(MaxJdkVersion)
     displayName: make all
 
   - script: |
       r=0
-      make run-all-tests CONFIGURATION=$(Build.Configuration) || r=$?
+      make run-all-tests CONFIGURATION=$(Build.Configuration) JI_MAX_JDK=$(MaxJdkVersion) || r=$?
       jar cf xatb.jar -C tests/Xamarin.Android.Tools.Bytecode-Tests/obj/*/classes .
       zip -r bin.zip bin
       exit $r
@@ -158,7 +159,7 @@ jobs:
 
   - template: templates\install-dependencies.yaml
 
-  - script: make prepare-core CONFIGURATION=$(Build.Configuration)
+  - script: make prepare-core CONFIGURATION=$(Build.Configuration) JI_MAX_JDK=$(MaxJdkVersion)
     displayName: make prepare-core
 
   - template: templates\core-build.yaml

build-tools/automation/templates/core-build.yaml

@@ -6,7 +6,7 @@ steps:
   displayName: Prepare Solution
   inputs:
     projects: Java.Interop.sln
-    arguments: '-c $(Build.Configuration) -target:Prepare'
+    arguments: '-c $(Build.Configuration) -target:Prepare -p:MaxJdkVersion=$(MaxJdkVersion)'
 
 - task: DotNetCoreCLI@2
   displayName: Build Solution

build-tools/scripts/Prepare.targets

@@ -7,10 +7,14 @@
   <Target Name="Prepare">
     <Exec Command="git submodule update --init --recursive" WorkingDirectory="$(_TopDir)" />
     <MSBuild Projects="$(MSBuildThisFileDirectory)..\..\build-tools\Java.Interop.BootstrapTasks\Java.Interop.BootstrapTasks.csproj" />
+    <PropertyGroup>
+      <_MaxJdk>$(MaxJdkVersion)</_MaxJdk>
+      <_MaxJdk Condition=" '$(_MaxJdk)' == '' ">$(JI_MAX_JDK)</_MaxJdk>
+    </PropertyGroup>
     <JdkInfo
         JdksRoot="$(ProgramFiles)\Java"
         MakeFragmentFile="$(MSBuildThisFileDirectory)..\..\bin\Build$(Configuration)\JdkInfo.mk"
-        MaximumJdkVersion="$(JI_MAX_MDK)"
+        MaximumJdkVersion="$(_MaxJdk)"
         PropertyFile="$(_TopDir)\bin\Build$(Configuration)\JdkInfo.props">
       <Output TaskParameter="JavaHomePath" PropertyName="_JavaSdkDirectory" />
     </JdkInfo>

tests/TestJVM/TestJVM.cs

@@ -6,6 +6,7 @@
 using System.Reflection;
 using System.Threading;
 using System.Text;
+using System.Xml.Linq;
 
 using Xamarin.Android.Tools;
 
@@ -47,14 +48,47 @@ static TextWriter GetLogOutput (string envVar, string prefix, Assembly caller)
 
 		static string GetJvmLibraryPath ()
 		{
-			var env = Environment.GetEnvironmentVariable ("JI_JVM_PATH");
-			if (!string.IsNullOrEmpty (env))
-				return env;
+			var jdkDir  = ReadJavaSdkDirectoryFromJdkInfoProps ();
+			if (jdkDir != null) {
+				return jdkDir;
+			}
 			var jdk = JdkInfo.GetKnownSystemJdkInfos ()
 				.FirstOrDefault ();
 			return jdk?.JdkJvmPath;
 		}
 
+		static string ReadJavaSdkDirectoryFromJdkInfoProps ()
+		{
+			var location    = typeof (TestJVM).Assembly.Location;
+			var binDir      = Path.GetDirectoryName (Path.GetDirectoryName (location));
+			var testDir     = Path.GetFileName (Path.GetDirectoryName (location));
+			if (!testDir.StartsWith ("Test", StringComparison.OrdinalIgnoreCase)) {
+				return null;
+			}
+			var buildName   = testDir.Replace ("Test", "Build");
+			if (buildName.Contains ('-')) {
+				buildName   = buildName.Substring (0, buildName.IndexOf ('-'));
+			}
+			var jdkPropFile = Path.Combine (binDir, buildName, "JdkInfo.props");
+			if (!File.Exists (jdkPropFile)) {
+				return null;
+			}
+
+			var msbuild     = XNamespace.Get ("http://schemas.microsoft.com/developer/msbuild/2003");
+
+			var jdkProps    = XDocument.Load (jdkPropFile);
+			var jdkJvmPath  = jdkProps.Elements ()
+				.Elements (msbuild + "Choose")
+				.Elements (msbuild + "When")
+				.Elements (msbuild + "PropertyGroup")
+				.Elements (msbuild + "JdkJvmPath")
+				.FirstOrDefault ();
+			if (jdkJvmPath == null) {
+				return null;
+			}
+			return jdkJvmPath.Value;
+		}
+
 		Dictionary<string, Type> typeMappings;
 
 		public TestJVM (string[] jars = null, Dictionary<string, Type> typeMappings = null)