Build: fix some warnings in buildSrc and build.gradle.kts

buildSrc/prepare-deps/build.gradle.kts

@@ -129,7 +129,7 @@ fun prepareDeps(
 ) {
     val makeIntellijCore = buildIvyRepositoryTask(intellijCore, customDepsOrg, customDepsRepoDir)
 
-    val makeIntellijAnnotations = tasks.register("makeIntellijAnnotations${intellij.name.capitalize()}", Copy::class) {
+    val makeIntellijAnnotations = tasks.register("makeIntellijAnnotations${intellij.name.replaceFirstChar(Char::uppercase)}", Copy::class) {
         dependsOn(makeIntellijCore)
 
         val intellijCoreRepo = CleanableStore[repoDir.resolve("intellij-core").absolutePath][intellijVersion].use()
@@ -160,7 +160,7 @@ fun prepareDeps(
         }
     }
 
-    val mergeSources = tasks.create("mergeSources${intellij.name.capitalize()}", Jar::class.java) {
+    val mergeSources = tasks.create("mergeSources${intellij.name.replaceFirstChar(Char::uppercase)}", Jar::class.java) {
         dependsOn(sources)
         isPreserveFileTimestamps = false
         isReproducibleFileOrder = true
@@ -236,7 +236,7 @@ fun buildIvyRepositoryTask(
     fun ResolvedArtifact.moduleDirectory(): File =
         storeDirectory()[moduleVersion.id.version].use()
 
-    return tasks.register("buildIvyRepositoryFor${configuration.name.capitalize()}") {
+    return tasks.register("buildIvyRepositoryFor${configuration.name.replaceFirstChar(Char::uppercase)}") {
         dependsOn(configuration)
         inputs.files(configuration)
 
@@ -366,7 +366,7 @@ fun writeIvyXml(
                 element("publications") {
                     artifactDir.listFiles()
                         ?.filter(::shouldIncludeIntellijJar)
-                        ?.sortedBy { it.name.toLowerCase() }
+                        ?.sortedBy { it.name.lowercase() }
                         ?.forEach { jarFile ->
                             val relativeName = jarFile.toRelativeString(baseDir).removeSuffix(".jar")
                             emptyElement("artifact") {

compiler/tests-java8/build.gradle.kts

@@ -1,3 +1,5 @@
+import kotlin.io.path.createTempDirectory
+
 plugins {
     kotlin("jvm")
     id("jps-compatible")
@@ -26,7 +28,7 @@ val generateTests by generator("org.jetbrains.kotlin.generators.tests.GenerateJa
 val generateKotlinUseSiteFromJavaOnesForJspecifyTests by generator("org.jetbrains.kotlin.generators.tests.GenerateKotlinUseSitesFromJavaOnesForJspecifyTestsKt")
 
 task<Exec>("downloadJspecifyTests") {
-    val tmpDirPath = createTempDir().absolutePath
+    val tmpDirPath = createTempDirectory().toAbsolutePath().toString()
     doFirst {
         executable("git")
         args("clone", "https://github.com/jspecify/jspecify/", tmpDirPath)

gradle/checkCacheability.gradle.kts

@@ -5,6 +5,7 @@ val checkCacheability = findProperty("kotlin.build.cache.check.enabled") as Stri
 val isTeamcityBuild = project.hasProperty("teamcity") || System.getenv("TEAMCITY_VERSION") != null
 
 if (checkCacheability && buildCacheEnabled()) {
+    @Suppress("DEPRECATION")
     gradle.taskGraph.afterTask {
         if (isCacheable()) {
             if (isTeamcityBuild)

gradle/report.gradle.kts

@@ -4,7 +4,6 @@
  */
 
 import org.gradle.api.Task
-import org.gradle.api.execution.TaskExecutionListener
 import org.gradle.api.invocation.Gradle
 import org.gradle.api.logging.Logger
 import org.gradle.api.tasks.TaskState
@@ -19,7 +18,7 @@ private class BuildTimeReporter(
     private val javaCompileClass: Class<*>,
     private val jarClass: Class<*>,
     private val proguardClass: Class<*>
-) : TaskExecutionListener {
+) : @Suppress("DEPRECATION") org.gradle.api.execution.TaskExecutionListener {
     companion object {
         fun configure(gradle: Gradle) {
             val rootProject = gradle.rootProject
@@ -40,7 +39,9 @@ private class BuildTimeReporter(
                 jarClass = findClass("org.gradle.jvm.tasks.Jar") ?: return,
                 proguardClass = findClass("proguard.gradle.ProGuardTask") ?: return
             )
+            @Suppress("DEPRECATION")
             gradle.taskGraph.addTaskExecutionListener(reporter)
+            @Suppress("DEPRECATION")
             gradle.buildFinished {
                 reporter.report(logger)
             }

libraries/kotlin-dom-api-compat/build.gradle.kts

@@ -10,6 +10,7 @@ val jsStdlibSources = "${projectDir}/../stdlib/js/src"
 
 kotlin {
     js(IR) {
+        @Suppress("UNUSED_VARIABLE")
         sourceSets {
             val main by getting {
                 if (!kotlinBuildProperties.isInIdeaSync) {

libraries/kotlin.test/js-ir/it/build.gradle.kts

@@ -53,6 +53,7 @@ val nodeModules by configurations.registering {
 }
 
 val compileTestDevelopmentExecutableKotlinJs = tasks.named<KotlinJsIrLink>("compileTestDevelopmentExecutableKotlinJs") {
+    @Suppress("DEPRECATION")
     kotlinOptions.outputFile = buildDir.resolve("compileSync/js/test/testDevelopmentExecutable/kotlin/kotlin-kotlin-test-js-ir-it-test.js").normalize().absolutePath
 }
 

libraries/reflect/build.gradle.kts

@@ -176,7 +176,7 @@ val proguard by task<CacheableProguardTask> {
                     "jre/lib/rt.jar",
                     "../Classes/classes.jar",
                     jdkHome = it.metadata.installationPath.asFile
-                )
+                )!!
             }
         )
     )

libraries/scripting/dependencies-maven-all/build.gradle.kts

@@ -121,17 +121,17 @@ val proguard by task<CacheableProguardTask> {
                     "jre/lib/rt.jar",
                     "../Classes/classes.jar",
                     jdkHome = it.metadata.installationPath.asFile
-                )
+                )!!
             },
             javaLauncher.map {
                 firstFromJavaHomeThatExists(
                     "jre/lib/jsse.jar",
                     "../Classes/jsse.jar",
                     jdkHome = it.metadata.installationPath.asFile
-                )
+                )!!
             },
             javaLauncher.map {
-                Jvm.forHome(it.metadata.installationPath.asFile).toolsJar
+                Jvm.forHome(it.metadata.installationPath.asFile).toolsJar!!
             }
         )
     )

libraries/tools/kotlin-main-kts/build.gradle.kts

@@ -98,17 +98,17 @@ val proguard by task<CacheableProguardTask> {
                     "jre/lib/rt.jar",
                     "../Classes/classes.jar",
                     jdkHome = it.metadata.installationPath.asFile
-                )
+                )!!
             },
             javaLauncher.map {
                 firstFromJavaHomeThatExists(
                     "jre/lib/jsse.jar",
                     "../Classes/jsse.jar",
                     jdkHome = it.metadata.installationPath.asFile
-                )
+                )!!
             },
             javaLauncher.map {
-                Jvm.forHome(it.metadata.installationPath.asFile).toolsJar
+                Jvm.forHome(it.metadata.installationPath.asFile).toolsJar!!
             }
         )
     )

plugins/fir-plugin-prototype/plugin-annotations/build.gradle.kts

@@ -8,6 +8,7 @@ kotlin {
         binaries.executable()
     }
 
+    @Suppress("UNUSED_VARIABLE")
     sourceSets {
         val commonMain by getting {
             dependencies {
@@ -15,7 +16,7 @@ kotlin {
             }
         }
         val jvmMain by getting {
-            dependencies {1
+            dependencies {
                 implementation(kotlin("stdlib-jdk8"))
             }
         }

prepare/compiler/build.gradle.kts

@@ -324,17 +324,17 @@ val proguard by task<CacheableProguardTask> {
                     "jre/lib/rt.jar",
                     "../Classes/classes.jar",
                     jdkHome = it.metadata.installationPath.asFile
-                )
+                )!!
             },
             javaLauncher.map {
                 firstFromJavaHomeThatExists(
                     "jre/lib/jsse.jar",
                     "../Classes/jsse.jar",
                     jdkHome = it.metadata.installationPath.asFile
-                )
+                )!!
             },
             javaLauncher.map {
-                Jvm.forHome(it.metadata.installationPath.asFile).toolsJar
+                Jvm.forHome(it.metadata.installationPath.asFile).toolsJar!!
             }
         )
     )

prepare/ide-plugin-dependencies/kotlin-backend-native-for-ide/build.gradle.kts

@@ -63,17 +63,17 @@ idePluginDependency {
                         "jre/lib/rt.jar",
                         "../Classes/classes.jar",
                         jdkHome = it.metadata.installationPath.asFile
-                    )
+                    )!!
                 },
                 javaLauncher.map {
                     firstFromJavaHomeThatExists(
                         "jre/lib/jsse.jar",
                         "../Classes/jsse.jar",
                         jdkHome = it.metadata.installationPath.asFile
-                    )
+                    )!!
                 },
                 javaLauncher.map {
-                    org.gradle.internal.jvm.Jvm.forHome(it.metadata.installationPath.asFile).toolsJar
+                    org.gradle.internal.jvm.Jvm.forHome(it.metadata.installationPath.asFile).toolsJar!!
                 }
             )
         )

repo/scripts/cache-redirector.settings.gradle.kts

@@ -14,6 +14,7 @@ import org.gradle.util.GradleVersion
 // This script is also being used in the Gradle integration tests which runs older Gradle versions
 fun <T : Any> Provider<T>.forUseAtConfigurationTimeCompat(): Provider<T> =
     if (GradleVersion.current() < GradleVersion.version("7.4")) {
+        @Suppress("DEPRECATION")
         forUseAtConfigurationTime()
     } else {
         this

repo/scripts/kotlin-bootstrap.settings.gradle.kts

@@ -69,7 +69,7 @@ fun getRootSettings(
         }
         else -> {
             val gradleParent = gradle.parent ?: error("Could not get includedBuild parent build for ${settings.rootDir}!")
-            getRootSettings(gradle.parent!!.settings, gradle.parent!!)
+            getRootSettings(gradleParent.settings, gradleParent)
         }
     }
 }
@@ -138,7 +138,7 @@ fun String?.propValueToBoolean(default: Boolean = false): Boolean {
     }
 }
 
-fun Provider<String>.mapToBoolean(): Provider<Boolean> = map { it?.propValueToBoolean() }
+fun Provider<String>.mapToBoolean(): Provider<Boolean> = map { it.propValueToBoolean() }
 
 fun RepositoryHandler.addBootstrapRepo(
     bootstrapRepo: String,