[Gradle] Limit max heap size for Kotlin daemon in integration tests

This change should further reduce memory pressure on running these tests
on CI agents.

Kapt4 tests require more Kotlin daemon memory than default 1g. It is
a known issue and eventually should be addressed by the compiler team.

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/kotlin/org/jetbrains/kotlin/gradle/ExecutionStrategyIT.kt

@@ -101,6 +101,7 @@ abstract class ExecutionStrategyIT : KGPDaemonsBaseTest() {
             projectName = "kotlinBuiltins",
             gradleVersion = gradleVersion,
             addHeapDumpOptions = false,
+            enableKotlinDaemonMemoryLimitInMb = null,
             buildOptions = defaultBuildOptions.copy(
                 useDaemonFallbackStrategy = false,
                 compilerExecutionStrategy = KotlinCompilerExecutionStrategy.DAEMON,
@@ -123,6 +124,7 @@ abstract class ExecutionStrategyIT : KGPDaemonsBaseTest() {
         project(
             projectName = "kotlinBuiltins",
             gradleVersion = gradleVersion,
+            enableKotlinDaemonMemoryLimitInMb = null,
             addHeapDumpOptions = false
         ) {
             setupProject(this)
@@ -203,6 +205,7 @@ abstract class ExecutionStrategyIT : KGPDaemonsBaseTest() {
             projectName = "kotlinBuiltins",
             gradleVersion = gradleVersion,
             addHeapDumpOptions = addHeapDumpOptions,
+            enableKotlinDaemonMemoryLimitInMb = if (shouldConfigureStrategyViaGradleProperty) null else 1024,
             buildOptions = defaultBuildOptions.copy(
                 useDaemonFallbackStrategy = testFallbackStrategy,
                 compilerExecutionStrategy = if (shouldConfigureStrategyViaGradleProperty) {

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/kotlin/org/jetbrains/kotlin/gradle/Kapt3IT.kt

@@ -152,7 +152,7 @@ open class Kapt3IT : Kapt3BaseIT() {
     @DisplayName("Kapt is skipped when no annotation processors are added")
     @GradleTest
     fun testKaptSkipped(gradleVersion: GradleVersion) {
-        project("kaptSkipped".withPrefix, gradleVersion) {
+        project("kaptSkipped".withPrefix, gradleVersion, enableKotlinDaemonMemoryLimitInMb = 2048) {
             build("build") {
                 assertTasksSkipped(":kaptGenerateStubsKotlin", ":kaptKotlin")
             }
@@ -162,7 +162,7 @@ open class Kapt3IT : Kapt3BaseIT() {
     @DisplayName("Kapt is not skipped when all annotation processors are declared as indirect dependencies")
     @GradleTest
     fun testKaptNotSkippedWithIndirectDependencies(gradleVersion: GradleVersion) {
-        project("indirectDependencies".withPrefix, gradleVersion) {
+        project("indirectDependencies".withPrefix, gradleVersion, enableKotlinDaemonMemoryLimitInMb = 2048) {
             build("assemble") {
                 assertTasksExecuted(":kaptGenerateStubsKotlin", ":kaptKotlin")
             }
@@ -179,6 +179,7 @@ open class Kapt3IT : Kapt3BaseIT() {
         project(
             "simple".withPrefix,
             gradleVersion,
+            enableKotlinDaemonMemoryLimitInMb = 2048,
         ) {
             //language=Groovy
             buildGradle.appendText(
@@ -208,7 +209,8 @@ open class Kapt3IT : Kapt3BaseIT() {
     ) {
         project(
             "simple".withPrefix,
-            gradleVersion
+            gradleVersion,
+            enableKotlinDaemonMemoryLimitInMb = 2048
         ) {
             //language=Groovy
             buildGradle.appendText(
@@ -337,7 +339,7 @@ open class Kapt3IT : Kapt3BaseIT() {
     @DisplayName("Kapt tasks is up-to-date on the second run")
     @GradleTest
     fun testSimple(gradleVersion: GradleVersion) {
-        project("simple".withPrefix, gradleVersion) {
+        project("simple".withPrefix, gradleVersion, enableKotlinDaemonMemoryLimitInMb = 2048) {
 
             build("build") {
                 assertKaptSuccessful()
@@ -551,6 +553,7 @@ open class Kapt3IT : Kapt3BaseIT() {
         project(
             "incrementalRebuild".withPrefix,
             gradleVersion,
+            enableKotlinDaemonMemoryLimitInMb = 2048,
             buildOptions = defaultBuildOptions.copy(incremental = true)
         ) {
             val generatedSrc = "build/generated/source/kapt/main"
@@ -586,6 +589,7 @@ open class Kapt3IT : Kapt3BaseIT() {
         project(
             "simple".withPrefix,
             gradleVersion,
+            enableKotlinDaemonMemoryLimitInMb = 2048,
             buildOptions = defaultBuildOptions.copy(incremental = true)
         ) {
             val internalDummyKt = javaSourcesDir().resolve("foo/InternalDummy.kt")
@@ -634,6 +638,7 @@ open class Kapt3IT : Kapt3BaseIT() {
         project(
             "simple".withPrefix,
             gradleVersion,
+            enableKotlinDaemonMemoryLimitInMb = 2048,
             buildOptions = defaultBuildOptions.copy(logLevel = LogLevel.DEBUG)
         ) {
             val arg = "-Xsuppress-version-warnings"
@@ -658,7 +663,7 @@ open class Kapt3IT : Kapt3BaseIT() {
     @DisplayName("generates Kotlin code")
     @GradleTest
     fun testOutputKotlinCode(gradleVersion: GradleVersion) {
-        project("kaptOutputKotlinCode".withPrefix, gradleVersion) {
+        project("kaptOutputKotlinCode".withPrefix, gradleVersion, enableKotlinDaemonMemoryLimitInMb = 2048) {
             build("build") {
                 assertKaptSuccessful()
                 assertFileExists(projectPath.resolve("build/generated/source/kapt/main/example/TestClassCustomized.java"))
@@ -672,7 +677,7 @@ open class Kapt3IT : Kapt3BaseIT() {
     @DisplayName("location mapping is working as expected")
     @GradleTest
     fun testLocationMapping(gradleVersion: GradleVersion) {
-        project("locationMapping".withPrefix, gradleVersion) {
+        project("locationMapping".withPrefix, gradleVersion, enableKotlinDaemonMemoryLimitInMb = 2048) {
             val regex = "((Test\\.java)|(test\\.kt)):(\\d+): error: GenError element".toRegex()
 
             fun BuildResult.getErrorMessages(): String =
@@ -804,7 +809,7 @@ open class Kapt3IT : Kapt3BaseIT() {
     @DisplayName("up-to-date checks are working")
     @GradleTest
     fun testKaptAvoidance(gradleVersion: GradleVersion) {
-        project("kaptAvoidance".withPrefix, gradleVersion) {
+        project("kaptAvoidance".withPrefix, gradleVersion, enableKotlinDaemonMemoryLimitInMb = 2048) {
 
             subProject("app").buildGradle.modify {
                 "$it\n\nkapt.includeCompileClasspath = true"
@@ -1059,6 +1064,7 @@ open class Kapt3IT : Kapt3BaseIT() {
         project(
             "jpms-module".withPrefix,
             gradleVersion,
+            enableKotlinDaemonMemoryLimitInMb = 2048,
         ) {
             build("assemble") {
                 assertTasksExecuted(":kaptKotlin", ":kaptGenerateStubsKotlin", ":compileKotlin", ":compileJava")
@@ -1089,6 +1095,7 @@ open class Kapt3IT : Kapt3BaseIT() {
         project(
             "incrementalRebuild".withPrefix,
             gradleVersion,
+            enableKotlinDaemonMemoryLimitInMb = 2048,
             buildOptions = defaultBuildOptions.withConfigurationCache
         ) {
             build("assemble")
@@ -1158,7 +1165,7 @@ open class Kapt3IT : Kapt3BaseIT() {
     @DisplayName("Generated sources attached to KotlinSourceSet are also used by generate stubs task")
     @GradleTest
     fun testGeneratedSourcesUsedInGenerateStubsTask(gradleVersion: GradleVersion) {
-        project("generatedSources".withPrefix, gradleVersion) {
+        project("generatedSources".withPrefix, gradleVersion, enableKotlinDaemonMemoryLimitInMb = 2048) {
             build("assemble")
         }
     }
@@ -1191,6 +1198,7 @@ open class Kapt3IT : Kapt3BaseIT() {
         project(
             "simple".withPrefix,
             gradleVersion,
+            enableKotlinDaemonMemoryLimitInMb = 2048,
             buildOptions = defaultBuildOptions.copy(logLevel = LogLevel.DEBUG)
         ) {
             buildGradle.appendText(
@@ -1379,6 +1387,7 @@ open class Kapt3IT : Kapt3BaseIT() {
         project(
             "simple".withPrefix,
             gradleVersion,
+            enableKotlinDaemonMemoryLimitInMb = 2048,
             buildOptions = defaultBuildOptions.copy(logLevel = LogLevel.DEBUG)
         ) {
 

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/kotlin/org/jetbrains/kotlin/gradle/KotlinDaemonIT.kt

@@ -23,7 +23,7 @@ import org.gradle.tooling.internal.consumer.ConnectorServices
 import org.gradle.util.GradleVersion
 import org.jetbrains.kotlin.compilerRunner.*
 import org.jetbrains.kotlin.gradle.testbase.*
-import org.junit.jupiter.api.Assumptions.assumeFalse
+import org.junit.jupiter.api.Disabled
 import org.junit.jupiter.api.DisplayName
 import java.nio.file.Paths
 import kotlin.test.assertTrue
@@ -108,6 +108,7 @@ class KotlinDaemonIT : KGPDaemonsBaseTest() {
         project(
             "kotlinProject",
             gradleVersion,
+            enableKotlinDaemonMemoryLimitInMb = null,
             buildOptions = defaultBuildOptions.copy(logLevel = LogLevel.INFO)
         ) {
             gradleProperties.append(
@@ -156,11 +157,11 @@ class KotlinDaemonIT : KGPDaemonsBaseTest() {
     }
 
     @DisplayName("KT-57154: Compiler should use specified toolchain regardless of Gradle Runtime JDK")
+    @Disabled("KT-58894: re-enable once fixed")
     @JdkVersions(versions = [JavaVersion.VERSION_1_8, JavaVersion.VERSION_11, JavaVersion.VERSION_17])
     @GradleWithJdkTest
     @GradleTestVersions(minVersion = TestVersions.Gradle.MAX_SUPPORTED)
     internal fun testCompilerRuntimeJdkToolchainIndependence(gradleVersion: GradleVersion, jdkVersion: JdkVersions.ProvidedJdk) {
-        assumeFalse(defaultBuildOptions.isK2ByDefault, "KT-58894")
         project(
             projectName = "kotlin-java-toolchain/onlyJdk11Compatible",
             gradleVersion = gradleVersion,

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/kotlin/org/jetbrains/kotlin/gradle/KotlinDaemonJvmArgsTest.kt

@@ -9,6 +9,7 @@ import org.gradle.api.logging.LogLevel
 import org.gradle.util.GradleVersion
 import org.jetbrains.kotlin.gradle.testbase.*
 import org.junit.jupiter.api.DisplayName
+import kotlin.io.path.writeText
 
 @DisplayName("Kotlin daemon JVM args")
 class KotlinDaemonJvmArgsTest : KGPDaemonsBaseTest() {
@@ -18,7 +19,7 @@ class KotlinDaemonJvmArgsTest : KGPDaemonsBaseTest() {
     @GradleTest
     @DisplayName("Kotlin daemon by default should inherit Gradle daemon max jvm heap size")
     internal fun shouldInheritGradleDaemonArgsByDefault(gradleVersion: GradleVersion) {
-        project("simpleProject", gradleVersion) {
+        project("simpleProject", gradleVersion, enableKotlinDaemonMemoryLimitInMb = null) {
             gradleProperties.append(
                 """
                 org.gradle.jvmargs = -Xmx758m
@@ -36,7 +37,7 @@ class KotlinDaemonJvmArgsTest : KGPDaemonsBaseTest() {
     @DisplayName("Kotlin daemon should allow to define own jvm options via gradle daemon jvm args system property")
     @GradleTest
     internal fun shouldAllowToRedefineViaDGradleOption(gradleVersion: GradleVersion) {
-        project("simpleProject", gradleVersion) {
+        project("simpleProject", gradleVersion, enableKotlinDaemonMemoryLimitInMb = null) {
             gradleProperties.append(
                 """
                 org.gradle.jvmargs =-Xmx758m -Dkotlin.daemon.jvm.options=Xmx1g,Xms128m
@@ -54,8 +55,8 @@ class KotlinDaemonJvmArgsTest : KGPDaemonsBaseTest() {
     @DisplayName("Jvm args defined in gradle.properties should override Gradle daemon jvm arguments inheritance")
     @GradleTest
     internal fun shouldUseArgumentsFromGradleProperties(gradleVersion: GradleVersion) {
-        project("simpleProject", gradleVersion) {
+        project("simpleProject", gradleVersion, enableKotlinDaemonMemoryLimitInMb = null) {
-            gradleProperties.append(
+            gradleProperties.writeText(
                 """
                 org.gradle.jvmargs =-Xmx758m -Xms128m
                 kotlin.daemon.jvmargs = -Xmx486m -Xms256m
@@ -73,7 +74,7 @@ class KotlinDaemonJvmArgsTest : KGPDaemonsBaseTest() {
     @DisplayName("Should use arguments from extension DSL")
     @GradleTest
     internal fun shouldUseDslArguments(gradleVersion: GradleVersion) {
-        project("simpleProject", gradleVersion) {
+        project("simpleProject", gradleVersion, enableKotlinDaemonMemoryLimitInMb = null) {
             gradleProperties.append(
                 """
                 org.gradle.jvmargs =-Xmx758m -Xms128m
@@ -104,9 +105,10 @@ class KotlinDaemonJvmArgsTest : KGPDaemonsBaseTest() {
     internal fun allowOverrideArgsForSpecificTask(gradleVersion: GradleVersion) {
         project(
             projectName = "simpleProject",
-            gradleVersion = gradleVersion
+            gradleVersion = gradleVersion,
+            enableKotlinDaemonMemoryLimitInMb = null
         ) {
-            gradleProperties.append(
+            gradleProperties.writeText(
                 """
                 org.gradle.jvmargs = -Xmx758m -Xms128m
                 kotlin.daemon.jvmargs = -Xmx486m -Xms256m
@@ -143,7 +145,7 @@ class KotlinDaemonJvmArgsTest : KGPDaemonsBaseTest() {
     @DisplayName("Should inherit Gradle memory settings if it is not set in Kotlin daemon jvm args")
     @GradleTest
     fun inheritGradleMemorySettingsIfKotlinArgsNotContain(gradleVersion: GradleVersion) {
-        project("simpleProject", gradleVersion) {
+        project("simpleProject", gradleVersion, enableKotlinDaemonMemoryLimitInMb = null) {
             gradleProperties.append(
                 """
                 org.gradle.jvmargs =-Xmx758m -Xms128m

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/kotlin/org/jetbrains/kotlin/gradle/testbase/testDsl.kt

@@ -32,6 +32,8 @@ import kotlin.test.assertTrue
  * @param [projectName] test project name in `src/test/resources/testProject` directory.
  * @param [buildOptions] common Gradle build options
  * @param [buildJdk] path to JDK build should run with. *Note* Only append to 'gradle.properties'!
+ * @param [enableKotlinDaemonMemoryLimitInMb] limit max heap size for Kotlin Daemon.
+ * `null` enables the default limit inherited from the Gradle process.
  */
 @OptIn(EnvironmentalVariablesOverride::class)
 fun KGPBaseTest.project(
@@ -42,6 +44,7 @@ fun KGPBaseTest.project(
     enableBuildScan: Boolean = false,
     addHeapDumpOptions: Boolean = true,
     enableGradleDebug: Boolean = false,
+    enableKotlinDaemonMemoryLimitInMb: Int? = 1024,
     projectPathAdditionalSuffix: String = "",
     buildJdk: File? = null,
     localRepoDir: Path? = null,
@@ -76,6 +79,7 @@ fun KGPBaseTest.project(
         forceOutput = forceOutput,
         enableBuildScan = enableBuildScan,
         enableGradleDebug = enableGradleDebug,
+        enableKotlinDaemonMemoryLimitInMb = enableKotlinDaemonMemoryLimitInMb,
         environmentVariables = environmentVariables
     )
     addHeapDumpOptions.ifTrue { testProject.addHeapDumpOptions() }
@@ -98,6 +102,8 @@ fun KGPBaseTest.project(
  * @param [projectName] test project name in 'src/test/resources/testProject` directory.
  * @param [buildOptions] common Gradle build options
  * @param [buildJdk] path to JDK build should run with. *Note* Only append to 'gradle.properties'!
+ * @param [enableKotlinDaemonMemoryLimitInMb] limit max heap size for Kotlin Daemon.
+ * `null` enables the default limit inherited from the Gradle process.
  */
 @OptIn(EnvironmentalVariablesOverride::class)
 fun KGPBaseTest.nativeProject(
@@ -108,6 +114,7 @@ fun KGPBaseTest.nativeProject(
     enableBuildScan: Boolean = false,
     addHeapDumpOptions: Boolean = true,
     enableGradleDebug: Boolean = false,
+    enableKotlinDaemonMemoryLimitInMb: Int? = 1024,
     projectPathAdditionalSuffix: String = "",
     buildJdk: File? = null,
     localRepoDir: Path? = null,
@@ -123,6 +130,7 @@ fun KGPBaseTest.nativeProject(
         enableBuildScan = enableBuildScan,
         addHeapDumpOptions = addHeapDumpOptions,
         enableGradleDebug = enableGradleDebug,
+        enableKotlinDaemonMemoryLimitInMb = enableKotlinDaemonMemoryLimitInMb,
         projectPathAdditionalSuffix = projectPathAdditionalSuffix,
         buildJdk = buildJdk,
         localRepoDir = localRepoDir,
@@ -143,6 +151,7 @@ fun TestProject.build(
     kotlinDaemonDebugPort: Int? = this.kotlinDaemonDebugPort,
     enableBuildCacheDebug: Boolean = false,
     enableBuildScan: Boolean = this.enableBuildScan,
+    enableKotlinDaemonMemoryLimitInMb: Int? = this.enableKotlinDaemonMemoryLimitInMb,
     buildOptions: BuildOptions = this.buildOptions,
     environmentVariables: EnvironmentalVariables = this.environmentVariables,
     assertions: BuildResult.() -> Unit = {},
@@ -155,6 +164,7 @@ fun TestProject.build(
         buildOptions,
         enableBuildCacheDebug,
         enableBuildScan,
+        enableKotlinDaemonMemoryLimitInMb,
         gradleVersion,
         kotlinDaemonDebugPort
     )
@@ -182,6 +192,7 @@ fun TestProject.buildAndFail(
     enableBuildCacheDebug: Boolean = false,
     enableBuildScan: Boolean = this.enableBuildScan,
     buildOptions: BuildOptions = this.buildOptions,
+    enableKotlinDaemonMemoryLimitInMb: Int? = this.enableKotlinDaemonMemoryLimitInMb,
     environmentVariables: EnvironmentalVariables = this.environmentVariables,
     assertions: BuildResult.() -> Unit = {},
 ) {
@@ -193,6 +204,7 @@ fun TestProject.buildAndFail(
         buildOptions,
         enableBuildCacheDebug,
         enableBuildScan,
+        enableKotlinDaemonMemoryLimitInMb,
         gradleVersion,
         kotlinDaemonDebugPort
     )
@@ -233,6 +245,7 @@ internal inline fun <reified T> TestProject.getModels(
         buildOptions,
         false,
         enableBuildScan,
+        enableKotlinDaemonMemoryLimitInMb,
         gradleVersion
     )
 
@@ -350,6 +363,7 @@ class TestProject(
     val gradleVersion: GradleVersion,
     val forceOutput: Boolean,
     val enableBuildScan: Boolean,
+    val enableKotlinDaemonMemoryLimitInMb: Int?,
     /**
      * Whether the test and the Gradle build launched by the test should be executed in the same process so that we can use the same
      * debugger for both (see https://docs.gradle.org/current/javadoc/org/gradle/testkit/runner/GradleRunner.html#isDebug--).
@@ -413,6 +427,7 @@ private fun commonBuildSetup(
     buildOptions: BuildOptions,
     enableBuildCacheDebug: Boolean,
     enableBuildScan: Boolean,
+    enableKotlinDaemonMemoryLimitInMb: Int?,
     gradleVersion: GradleVersion,
     kotlinDaemonDebugPort: Int? = null,
 ): List<String> {
@@ -429,6 +444,10 @@ private fun commonBuildSetup(
         // Decreasing Gradle daemon idle timeout to 1 min from default 3 hours.
         // This should help with OOM on CI when agents do not have enough free memory available.
         "-Dorg.gradle.daemon.idletimeout=60000",
+        if (enableKotlinDaemonMemoryLimitInMb != null) {
+            // Limiting Kotlin daemon heap size to reduce memory pressure on CI agents
+            "-Pkotlin.daemon.jvmargs=-Xmx${enableKotlinDaemonMemoryLimitInMb}m"
+        } else null,
         if (enableBuildCacheDebug) "-Dorg.gradle.caching.debug=true" else null,
         if (enableBuildScan) "--scan" else null,
         kotlinDaemonDebugPort?.let {