[Native] Add project property that holds JavaLauncher provider

This property is initialized once to make ToolRunner do not query for
the launcher. Also set JDK 11 as a default in case of an unavailable JDK
set as the toolchain, like JDK 17 that is not available in the auto mode
in Gradle and requires environment variable to be set.

kotlin-native/tools/kotlin-native-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/plugin/konan/KonanPlugin.kt

@@ -27,10 +27,16 @@ import org.gradle.api.internal.component.SoftwareComponentInternal
 import org.gradle.api.internal.component.UsageContext
 import org.gradle.api.internal.project.ProjectInternal
 import org.gradle.api.plugins.BasePlugin
+import org.gradle.api.plugins.JavaPluginExtension
+import org.gradle.api.provider.Provider
 import org.gradle.api.publish.PublishingExtension
 import org.gradle.api.publish.maven.MavenPublication
 import org.gradle.api.publish.maven.internal.publication.MavenPublicationInternal
 import org.gradle.api.tasks.Exec
+import org.gradle.jvm.toolchain.JavaLanguageVersion
+import org.gradle.jvm.toolchain.JavaLauncher
+import org.gradle.jvm.toolchain.JavaToolchainService
+import org.gradle.jvm.toolchain.JavaToolchainSpec
 import org.gradle.language.cpp.internal.NativeVariantIdentity
 import org.gradle.tooling.provider.model.ToolingModelBuilderRegistry
 import org.gradle.util.GradleVersion
@@ -168,6 +174,26 @@ internal fun Project.konanCompilerName(): String =
 internal fun Project.konanCompilerDownloadDir(): String =
         DependencyProcessor.localKonanDir.resolve(project.konanCompilerName()).absolutePath
 
+private lateinit var konanJvmLauncher: JavaLauncher
+
+internal fun Project.getJavaLauncher(): Provider<JavaLauncher> = providers.provider {
+    if (!::konanJvmLauncher.isInitialized) {
+        val toolchain = project.extensions.getByType(JavaPluginExtension::class.java).toolchain
+        val service = project.extensions.getByType(JavaToolchainService::class.java)
+        konanJvmLauncher = try {
+            service.launcherFor(toolchain).get()
+        } catch (ex: GradleException) {
+            // If the JDK that was set is not available get the JDK 11 as a default
+            service.launcherFor(object : Action<JavaToolchainSpec> {
+                override fun execute(toolchainSpec: JavaToolchainSpec) {
+                    toolchainSpec.languageVersion.set(JavaLanguageVersion.of(JdkMajorVersion.JDK_11.majorVersion))
+                }
+            }).get()
+        }
+    }
+    konanJvmLauncher
+}
+
 // region Useful extensions and functions ---------------------------------------
 
 internal fun MutableList<String>.addArg(parameter: String, value: String) {
@@ -293,6 +319,7 @@ class KonanPlugin @Inject constructor(private val registry: ToolingModelBuilderR
         KONAN_VERSION                  ("org.jetbrains.kotlin.native.version"),
         KONAN_BUILD_TARGETS            ("konan.build.targets"),
         KONAN_JVM_ARGS                 ("konan.jvmArgs"),
+        KONAN_JVM_LAUNCHER             ("konan.javaLauncher"),
         KONAN_USE_ENVIRONMENT_VARIABLES("konan.useEnvironmentVariables"),
         DOWNLOAD_COMPILER              ("download.compiler"),
 
@@ -340,6 +367,7 @@ class KonanPlugin @Inject constructor(private val registry: ToolingModelBuilderR
                 KonanArtifactContainer::class.java,
                 project
         )
+        project.setProperty(ProjectProperty.KONAN_JVM_LAUNCHER, project.getJavaLauncher())
 
         project.warnAboutDeprecatedProperty(ProjectProperty.KONAN_HOME)
 

kotlin-native/tools/kotlin-native-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/plugin/konan/KonanToolRunner.kt

@@ -20,10 +20,14 @@ import org.gradle.api.Named
 import org.gradle.api.Project
 import org.gradle.api.file.FileCollection
 import org.gradle.api.Action
+import org.gradle.api.GradleException
 import org.gradle.api.plugins.JavaPluginExtension
 import org.gradle.api.provider.Property
+import org.gradle.api.provider.Provider
+import org.gradle.jvm.toolchain.JavaLanguageVersion
 import org.gradle.jvm.toolchain.JavaLauncher
 import org.gradle.jvm.toolchain.JavaToolchainService
+import org.gradle.jvm.toolchain.JavaToolchainSpec
 import org.gradle.process.ExecSpec
 import org.jetbrains.kotlin.gradle.plugin.konan.KonanPlugin.ProjectProperty.KONAN_HOME
 import org.jetbrains.kotlin.konan.target.Family
@@ -101,8 +105,9 @@ internal abstract class KonanCliRunner(
                     "Please change it to the compiler root directory and rerun the build.")
         }
 
-        val toolchain = project.extensions.getByType(JavaPluginExtension::class.java).toolchain
-        val launcher = project.extensions.getByType(JavaToolchainService::class.java).launcherFor(toolchain)
+        @Suppress("UNCHECKED_CAST")
+        val launcher = project.getProperty(KonanPlugin.ProjectProperty.KONAN_JVM_LAUNCHER) as? Provider<JavaLauncher>
+                ?: throw IllegalStateException("Missing property: ${KonanPlugin.ProjectProperty.KONAN_JVM_LAUNCHER}")
 
         project.exec(object : Action<ExecSpec> {
             override fun execute(exec: ExecSpec) {