Add a separate test configurations for JDK 21 dependent test

After it's released, there would be no need in them, but right now
they are unavailable through the toolchain, so we can't require it.
See KT-58765 for tracking

But there should be a dedicated Build configuration with JDK_21_0 env
properly set.

^KT-58716 Fixed

compiler/fir/analysis-tests/build.gradle.kts

@@ -59,14 +59,34 @@ if (kotlinBuildProperties.isInJpsBuildIdeaSync) {
     }
 }
 
+fun Test.configureTest(configureJUnit: JUnitPlatformOptions.() -> Unit = {}) {
+    dependsOn(":dist")
+    workingDir = rootDir
+    useJUnitPlatform {
+        configureJUnit()
+    }
+    useJsIrBoxTests(version = version, buildDir = "$buildDir/")
+}
+
+
 projectTest(
     jUnitMode = JUnitMode.JUnit5,
     defineJDKEnvVariables = listOf(JdkMajorVersion.JDK_1_8, JdkMajorVersion.JDK_11_0, JdkMajorVersion.JDK_17_0)
 ) {
-    dependsOn(":dist")
+    configureTest {
-    workingDir = rootDir
+        excludeTags("Jdk21Test")
-    useJUnitPlatform()
+    }
-    useJsIrBoxTests(version = version, buildDir = "$buildDir/")
+}
+
+// Separate configuration is only necessary while JDK 21 is not released, so cannot be obtained via toolchain.
+// See KT-58765 for tracking
+projectTest(
+    "jdk21Tests",
+    jUnitMode = JUnitMode.JUnit5,
+) {
+    configureTest {
+        includeTags("Jdk21Test")
+    }
 }
 
 testsJar()

compiler/fir/analysis-tests/tests-gen/org/jetbrains/kotlin/test/runners/FirLightTreeJdk21DiagnosticTestGenerated.java

@@ -0,0 +1,32 @@
+/*
+ * Copyright 2010-2023 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
+ */
+
+package org.jetbrains.kotlin.test.runners;
+
+import com.intellij.testFramework.TestDataPath;
+import org.jetbrains.kotlin.test.util.KtTestUtil;
+import org.jetbrains.kotlin.test.TestMetadata;
+import org.junit.jupiter.api.Nested;
+import org.junit.jupiter.api.Test;
+
+import java.io.File;
+import java.util.regex.Pattern;
+
+/** This class is generated by {@link org.jetbrains.kotlin.test.generators.GenerateCompilerTestsKt}. DO NOT MODIFY MANUALLY */
+@SuppressWarnings("all")
+@TestMetadata("compiler/testData/diagnostics/testsWithJdk21")
+@TestDataPath("$PROJECT_ROOT")
+public class FirLightTreeJdk21DiagnosticTestGenerated extends AbstractFirLightTreeJdk21DiagnosticTest {
+    @Test
+    public void testAllFilesPresentInTestsWithJdk21() throws Exception {
+        KtTestUtil.assertAllTestsPresentByMetadataWithExcluded(this.getClass(), new File("compiler/testData/diagnostics/testsWithJdk21"), Pattern.compile("^(.+)\\.kt$"), Pattern.compile("^(.+)\\.(reversed|fir|ll)\\.kts?$"), true);
+    }
+
+    @Test
+    @TestMetadata("newListMethods.kt")
+    public void testNewListMethods() throws Exception {
+        runTest("compiler/testData/diagnostics/testsWithJdk21/newListMethods.kt");
+    }
+}

compiler/fir/analysis-tests/tests-gen/org/jetbrains/kotlin/test/runners/FirPsiJdk21DiagnosticTestGenerated.java

@@ -0,0 +1,32 @@
+/*
+ * Copyright 2010-2023 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
+ */
+
+package org.jetbrains.kotlin.test.runners;
+
+import com.intellij.testFramework.TestDataPath;
+import org.jetbrains.kotlin.test.util.KtTestUtil;
+import org.jetbrains.kotlin.test.TestMetadata;
+import org.junit.jupiter.api.Nested;
+import org.junit.jupiter.api.Test;
+
+import java.io.File;
+import java.util.regex.Pattern;
+
+/** This class is generated by {@link org.jetbrains.kotlin.test.generators.GenerateCompilerTestsKt}. DO NOT MODIFY MANUALLY */
+@SuppressWarnings("all")
+@TestMetadata("compiler/testData/diagnostics/testsWithJdk21")
+@TestDataPath("$PROJECT_ROOT")
+public class FirPsiJdk21DiagnosticTestGenerated extends AbstractFirPsiJdk21DiagnosticTest {
+    @Test
+    public void testAllFilesPresentInTestsWithJdk21() throws Exception {
+        KtTestUtil.assertAllTestsPresentByMetadataWithExcluded(this.getClass(), new File("compiler/testData/diagnostics/testsWithJdk21"), Pattern.compile("^(.+)\\.kt$"), Pattern.compile("^(.+)\\.(reversed|fir|ll)\\.kts?$"), true);
+    }
+
+    @Test
+    @TestMetadata("newListMethods.kt")
+    public void testNewListMethods() throws Exception {
+        runTest("compiler/testData/diagnostics/testsWithJdk21/newListMethods.kt");
+    }
+}

compiler/test-infrastructure-utils/tests/org/jetbrains/kotlin/test/TestJdkKind.kt

@@ -32,6 +32,9 @@ enum class TestJdkKind(val requiresSeparateProcess: Boolean = false) {
     // JDK found at $JDK_17_0
     FULL_JDK_17(requiresSeparateProcess = true),
 
+    // JDK found at $JDK_21_0
+    FULL_JDK_21(requiresSeparateProcess = true),
+
     // JDK found at java.home
     FULL_JDK,
     ANDROID_API,

compiler/test-infrastructure-utils/tests/org/jetbrains/kotlin/test/util/KtTestUtil.java

@@ -159,6 +159,10 @@ public class KtTestUtil {
         return getJdkHome("JDK_17_0", "JDK_17");
     }
 
+    public static File getJdk21Home() {
+        return getJdkHome("JDK_21_0", "JDK_21");
+    }
+
     @NotNull
     public static String getTestDataPathBase() {
         return getHomeDirectory() + "/compiler/testData";

compiler/testData/diagnostics/testsWithJdk21/newListMethods.fir.kt

@@ -0,0 +1,46 @@
+// ISSUE: KT-58371
+// WITH_STDLIB
+
+class A<T> : ArrayList<T>() {
+    override fun addFirst(t: T) {
+        super.addFirst(t)
+    }
+
+    override fun addLast(t: T) {
+        super.addLast(t)
+    }
+
+    override fun getFirst(): T = super.getFirst()
+    override fun getLast(): T = super.getLast()
+
+    override fun removeFirst(): T = super.removeFirst()
+    override fun removeLast(): T = super.removeLast()
+
+    <!NOTHING_TO_OVERRIDE!>override<!> fun reversed(): List<T> = super.<!UNRESOLVED_REFERENCE!>reversed<!>()
+}
+
+fun foo(x: MutableList<String>, y: ArrayList<String>, z: A<String>) {
+    x.<!UNRESOLVED_REFERENCE!>addFirst<!>("")
+    x.<!UNRESOLVED_REFERENCE!>addLast<!>("")
+    x.<!UNRESOLVED_REFERENCE!>getFirst<!>()
+    x.<!UNRESOLVED_REFERENCE!>getLast<!>()
+    x.<!DEBUG_INFO_CALL("fqName: kotlin.collections.removeFirst; typeCall: extension function")!>removeFirst()<!>
+    x.<!DEBUG_INFO_CALL("fqName: kotlin.collections.removeLast; typeCall: extension function")!>removeLast()<!>
+    x.<!DEBUG_INFO_CALL("fqName: kotlin.collections.reversed; typeCall: extension function")!>reversed()<!>
+
+    y.addFirst("")
+    y.addLast("")
+    y.getFirst()
+    y.getLast()
+    y.<!DEBUG_INFO_CALL("fqName: java.util.ArrayList.removeFirst; typeCall: function")!>removeFirst()<!>
+    y.<!DEBUG_INFO_CALL("fqName: java.util.ArrayList.removeLast; typeCall: function")!>removeLast()<!>
+    y.<!DEBUG_INFO_CALL("fqName: kotlin.collections.reversed; typeCall: extension function")!>reversed()<!>
+
+    z.addFirst("")
+    z.addLast("")
+    z.getFirst()
+    z.getLast()
+    z.<!DEBUG_INFO_CALL("fqName: A.removeFirst; typeCall: function")!>removeFirst()<!>
+    z.<!DEBUG_INFO_CALL("fqName: A.removeLast; typeCall: function")!>removeLast()<!>
+    z.<!DEBUG_INFO_CALL("fqName: A.reversed; typeCall: function")!>reversed()<!>
+}

compiler/testData/diagnostics/testsWithJdk21/newListMethods.kt

@@ -0,0 +1,46 @@
+// ISSUE: KT-58371
+// WITH_STDLIB
+
+class A<T> : ArrayList<T>() {
+    override fun addFirst(t: T) {
+        super.addFirst(t)
+    }
+
+    override fun addLast(t: T) {
+        super.addLast(t)
+    }
+
+    override fun getFirst(): T = super.getFirst()
+    override fun getLast(): T = super.getLast()
+
+    override fun removeFirst(): T = super.removeFirst()
+    override fun removeLast(): T = super.removeLast()
+
+    override fun reversed(): List<T> = super.reversed()
+}
+
+fun foo(x: MutableList<String>, y: ArrayList<String>, z: A<String>) {
+    x.<!UNRESOLVED_REFERENCE!>addFirst<!>("")
+    x.<!UNRESOLVED_REFERENCE!>addLast<!>("")
+    x.<!UNRESOLVED_REFERENCE!>getFirst<!>()
+    x.<!UNRESOLVED_REFERENCE!>getLast<!>()
+    x.<!DEBUG_INFO_CALL("fqName: kotlin.collections.removeFirst; typeCall: extension function")!>removeFirst()<!>
+    x.<!DEBUG_INFO_CALL("fqName: kotlin.collections.removeLast; typeCall: extension function")!>removeLast()<!>
+    x.<!DEBUG_INFO_CALL("fqName: kotlin.collections.reversed; typeCall: extension function")!>reversed()<!>
+
+    y.<!UNRESOLVED_REFERENCE!>addFirst<!>("")
+    y.<!UNRESOLVED_REFERENCE!>addLast<!>("")
+    y.<!UNRESOLVED_REFERENCE!>getFirst<!>()
+    y.<!UNRESOLVED_REFERENCE!>getLast<!>()
+    y.<!DEBUG_INFO_CALL("fqName: kotlin.collections.removeFirst; typeCall: extension function")!>removeFirst()<!>
+    y.<!DEBUG_INFO_CALL("fqName: kotlin.collections.removeLast; typeCall: extension function")!>removeLast()<!>
+    y.<!DEBUG_INFO_CALL("fqName: kotlin.collections.reversed; typeCall: extension function")!>reversed()<!>
+
+    z.<!UNRESOLVED_REFERENCE!>addFirst<!>("")
+    z.<!UNRESOLVED_REFERENCE!>addLast<!>("")
+    z.<!UNRESOLVED_REFERENCE!>getFirst<!>()
+    z.<!UNRESOLVED_REFERENCE!>getLast<!>()
+    z.<!DEBUG_INFO_CALL("fqName: kotlin.collections.removeFirst; typeCall: extension function")!>removeFirst()<!>
+    z.<!DEBUG_INFO_CALL("fqName: kotlin.collections.removeLast; typeCall: extension function")!>removeLast()<!>
+    z.<!DEBUG_INFO_CALL("fqName: kotlin.collections.reversed; typeCall: extension function")!>reversed()<!>
+}

compiler/tests-common-new/build.gradle.kts

@@ -1,5 +1,3 @@
-import org.jetbrains.kotlin.ideaExt.idea
-
 plugins {
     kotlin("jvm")
     id("jps-compatible")
@@ -50,15 +48,34 @@ sourceSets {
     }
 }
 
+fun Test.configureTest(configureJUnit: JUnitPlatformOptions.() -> Unit = {}) {
+    dependsOn(":dist")
+    workingDir = rootDir
+    useJUnitPlatform {
+        configureJUnit()
+    }
+}
+
 projectTest(
     jUnitMode = JUnitMode.JUnit5,
     defineJDKEnvVariables = listOf(
         JdkMajorVersion.JDK_11_0 // e.g. org.jetbrains.kotlin.test.runners.ForeignAnnotationsCompiledJavaTestGenerated.Java11Tests
     )
 ) {
-    dependsOn(":dist")
+    configureTest {
-    workingDir = rootDir
+        excludeTags("Jdk21Test")
-    useJUnitPlatform()
+    }
+}
+
+// Separate configuration is only necessary while JDK 21 is not released, so cannot be obtained via toolchain.
+// See KT-58765 for tracking
+projectTest(
+    "jdk21Tests",
+    jUnitMode = JUnitMode.JUnit5,
+) {
+    configureTest {
+        includeTags("Jdk21Test")
+    }
 }
 
 testsJar()

compiler/tests-common-new/tests-gen/org/jetbrains/kotlin/test/runners/Jdk21DiagnosticTestGenerated.java

@@ -0,0 +1,32 @@
+/*
+ * Copyright 2010-2023 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
+ */
+
+package org.jetbrains.kotlin.test.runners;
+
+import com.intellij.testFramework.TestDataPath;
+import org.jetbrains.kotlin.test.util.KtTestUtil;
+import org.jetbrains.kotlin.test.TestMetadata;
+import org.junit.jupiter.api.Nested;
+import org.junit.jupiter.api.Test;
+
+import java.io.File;
+import java.util.regex.Pattern;
+
+/** This class is generated by {@link org.jetbrains.kotlin.test.generators.GenerateCompilerTestsKt}. DO NOT MODIFY MANUALLY */
+@SuppressWarnings("all")
+@TestMetadata("compiler/testData/diagnostics/testsWithJdk21")
+@TestDataPath("$PROJECT_ROOT")
+public class Jdk21DiagnosticTestGenerated extends AbstractJdk21DiagnosticTest {
+    @Test
+    public void testAllFilesPresentInTestsWithJdk21() throws Exception {
+        KtTestUtil.assertAllTestsPresentByMetadataWithExcluded(this.getClass(), new File("compiler/testData/diagnostics/testsWithJdk21"), Pattern.compile("^(.+)\\.kt$"), Pattern.compile("^(.+)\\.(reversed|fir|ll)\\.kts?$"), true);
+    }
+
+    @Test
+    @TestMetadata("newListMethods.kt")
+    public void testNewListMethods() throws Exception {
+        runTest("compiler/testData/diagnostics/testsWithJdk21/newListMethods.kt");
+    }
+}

compiler/tests-common-new/tests/org/jetbrains/kotlin/test/backend/handlers/JvmBoxRunner.kt

@@ -7,7 +7,10 @@ package org.jetbrains.kotlin.test.backend.handlers
 
 import junit.framework.TestCase
 import org.jetbrains.kotlin.backend.common.CodegenUtil.getMemberDeclarationsToGenerate
-import org.jetbrains.kotlin.codegen.*
+import org.jetbrains.kotlin.codegen.ClassFileFactory
+import org.jetbrains.kotlin.codegen.CodegenTestUtil
+import org.jetbrains.kotlin.codegen.GeneratedClassLoader
+import org.jetbrains.kotlin.codegen.extractUrls
 import org.jetbrains.kotlin.fileClasses.JvmFileClassInfo
 import org.jetbrains.kotlin.fileClasses.JvmFileClassUtil.getFileClassInfoNoResolve
 import org.jetbrains.kotlin.psi.KtFile
@@ -181,6 +184,7 @@ open class JvmBoxRunner(testServices: TestServices) : JvmBinaryArtifactHandler(t
             TestJdkKind.FULL_JDK -> KtTestUtil.getJdk8Home()
             TestJdkKind.FULL_JDK_11 -> KtTestUtil.getJdk11Home()
             TestJdkKind.FULL_JDK_17 -> KtTestUtil.getJdk17Home()
+            TestJdkKind.FULL_JDK_21 -> KtTestUtil.getJdk21Home()
             else -> error("Unsupported JDK kind: $jdkKind")
         }
 

compiler/tests-common-new/tests/org/jetbrains/kotlin/test/runners/AbstractFirDiagnosticTest.kt

@@ -17,6 +17,7 @@ import org.jetbrains.kotlin.test.builders.TestConfigurationBuilder
 import org.jetbrains.kotlin.test.builders.configureFirHandlersStep
 import org.jetbrains.kotlin.test.builders.firHandlersStep
 import org.jetbrains.kotlin.test.builders.irHandlersStep
+import org.jetbrains.kotlin.test.directives.CodegenTestDirectives
 import org.jetbrains.kotlin.test.directives.ConfigurationDirectives.WITH_STDLIB
 import org.jetbrains.kotlin.test.directives.FirDiagnosticsDirectives.FIR_DUMP
 import org.jetbrains.kotlin.test.directives.FirDiagnosticsDirectives.WITH_EXTENDED_CHECKERS
@@ -31,17 +32,15 @@ import org.jetbrains.kotlin.test.frontend.fir.handlers.*
 import org.jetbrains.kotlin.test.model.DependencyKind
 import org.jetbrains.kotlin.test.model.FrontendFacade
 import org.jetbrains.kotlin.test.model.FrontendKinds
+import org.jetbrains.kotlin.test.services.JsLibraryProvider
+import org.jetbrains.kotlin.test.services.TestService
+import org.jetbrains.kotlin.test.services.TestServices
 import org.jetbrains.kotlin.test.services.configuration.CommonEnvironmentConfigurator
 import org.jetbrains.kotlin.test.services.configuration.JvmEnvironmentConfigurator
 import org.jetbrains.kotlin.test.services.fir.FirOldFrontendMetaConfigurator
 import org.jetbrains.kotlin.test.services.service
 import org.jetbrains.kotlin.test.services.sourceProviders.AdditionalDiagnosticsSourceFilesProvider
 import org.jetbrains.kotlin.test.services.sourceProviders.CoroutineHelpersSourceFilesProvider
-import org.jetbrains.kotlin.test.FirParser
-import org.jetbrains.kotlin.test.directives.CodegenTestDirectives
-import org.jetbrains.kotlin.test.services.JsLibraryProvider
-import org.jetbrains.kotlin.test.services.TestService
-import org.jetbrains.kotlin.test.services.TestServices
 
 abstract class AbstractFirDiagnosticTestBase(val parser: FirParser) : AbstractKotlinCompilerTest() {
     override fun TestConfigurationBuilder.configuration() {
@@ -51,6 +50,26 @@ abstract class AbstractFirDiagnosticTestBase(val parser: FirParser) : AbstractKo
     }
 }
 
+@Jdk21Test
+abstract class AbstractFirPsiJdk21DiagnosticTest : AbstractFirDiagnosticTestBase(FirParser.Psi) {
+    override fun configure(builder: TestConfigurationBuilder) {
+        super.configure(builder)
+        builder.defaultDirectives {
+            JDK_KIND with TestJdkKind.FULL_JDK_21
+        }
+    }
+}
+
+@Jdk21Test
+abstract class AbstractFirLightTreeJdk21DiagnosticTest : AbstractFirDiagnosticTestBase(FirParser.LightTree) {
+    override fun configure(builder: TestConfigurationBuilder) {
+        super.configure(builder)
+        builder.defaultDirectives {
+            JDK_KIND with TestJdkKind.FULL_JDK_21
+        }
+    }
+}
+
 abstract class AbstractFirPsiDiagnosticTest : AbstractFirDiagnosticTestBase(FirParser.Psi)
 abstract class AbstractFirLightTreeDiagnosticsTest : AbstractFirDiagnosticTestBase(FirParser.LightTree) {
     override fun configure(builder: TestConfigurationBuilder) {

compiler/tests-common-new/tests/org/jetbrains/kotlin/test/runners/AbstractJdk21DiagnosticTest.kt

@@ -0,0 +1,23 @@
+/*
+ * Copyright 2010-2023 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
+ */
+
+package org.jetbrains.kotlin.test.runners
+
+import org.jetbrains.kotlin.test.TestJdkKind
+import org.jetbrains.kotlin.test.builders.TestConfigurationBuilder
+import org.jetbrains.kotlin.test.directives.ConfigurationDirectives
+import org.jetbrains.kotlin.test.directives.JvmEnvironmentConfigurationDirectives
+
+@Jdk21Test
+abstract class AbstractJdk21DiagnosticTest : AbstractDiagnosticTest() {
+    override fun configure(builder: TestConfigurationBuilder) {
+        super.configure(builder)
+        builder.defaultDirectives {
+            JvmEnvironmentConfigurationDirectives.JDK_KIND with TestJdkKind.FULL_JDK_21
+            +ConfigurationDirectives.WITH_STDLIB
+            +JvmEnvironmentConfigurationDirectives.WITH_REFLECT
+        }
+    }
+}

compiler/tests-common-new/tests/org/jetbrains/kotlin/test/runners/Jdk21Test.kt

@@ -0,0 +1,15 @@
+/*
+ * Copyright 2010-2023 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
+ */
+
+package org.jetbrains.kotlin.test.runners
+
+import org.junit.jupiter.api.Tag
+
+/**
+ * This tag is only necessary while JDK 21 is not released, so cannot be obtained via toolchain.
+ * See KT-58765 for tracking
+ */
+@Tag("Jdk21Test")
+annotation class Jdk21Test

compiler/tests-common-new/tests/org/jetbrains/kotlin/test/services/configuration/JvmEnvironmentConfigurator.kt

@@ -135,6 +135,7 @@ class JvmEnvironmentConfigurator(testServices: TestServices) : EnvironmentConfig
             TestJdkKind.FULL_JDK_6 -> File(System.getenv("JDK_16") ?: error("Environment variable JDK_16 is not set"))
             TestJdkKind.FULL_JDK_11 -> KtTestUtil.getJdk11Home()
             TestJdkKind.FULL_JDK_17 -> KtTestUtil.getJdk17Home()
+            TestJdkKind.FULL_JDK_21 -> KtTestUtil.getJdk21Home()
             TestJdkKind.FULL_JDK -> if (JavaVersion.current() >= JavaVersion.compose(9)) File(System.getProperty("java.home")) else null
             TestJdkKind.ANDROID_API -> null
         }
@@ -146,6 +147,7 @@ class JvmEnvironmentConfigurator(testServices: TestServices) : EnvironmentConfig
             TestJdkKind.FULL_JDK_6 -> null
             TestJdkKind.FULL_JDK_11 -> null
             TestJdkKind.FULL_JDK_17 -> null
+            TestJdkKind.FULL_JDK_21 -> null
             TestJdkKind.FULL_JDK -> null
         }
     }
@@ -197,6 +199,7 @@ class JvmEnvironmentConfigurator(testServices: TestServices) : EnvironmentConfig
             TestJdkKind.FULL_JDK_6 -> {}
             TestJdkKind.FULL_JDK_11 -> {}
             TestJdkKind.FULL_JDK_17 -> {}
+            TestJdkKind.FULL_JDK_21 -> {}
             TestJdkKind.FULL_JDK -> {}
         }
 

compiler/tests-common/tests/org/jetbrains/kotlin/test/KotlinTestUtils.java

@@ -197,6 +197,9 @@ public class KotlinTestUtils {
         else if (jdkKind == TestJdkKind.FULL_JDK_17) {
             configuration.put(JVMConfigurationKeys.JDK_HOME, KtTestUtil.getJdk17Home());
         }
+        else if (jdkKind == TestJdkKind.FULL_JDK_21) {
+            configuration.put(JVMConfigurationKeys.JDK_HOME, KtTestUtil.getJdk21Home());
+        }
         else if (JavaVersion.current().compareTo(JavaVersion.compose(9)) >= 0) {
             configuration.put(JVMConfigurationKeys.JDK_HOME, new File(System.getProperty("java.home")));
         }

compiler/tests-for-compiler-generator/tests/org/jetbrains/kotlin/test/generators/GenerateJUnit5CompilerTests.kt

@@ -10,8 +10,11 @@ import org.jetbrains.kotlin.generators.util.TestGeneratorUtil
 import org.jetbrains.kotlin.test.TargetBackend
 import org.jetbrains.kotlin.test.runners.*
 import org.jetbrains.kotlin.test.runners.codegen.*
-import org.jetbrains.kotlin.test.runners.ir.*
+import org.jetbrains.kotlin.test.runners.ir.AbstractClassicJvmIrTextTest
-import org.jetbrains.kotlin.test.runners.ir.interpreter.*
+import org.jetbrains.kotlin.test.runners.ir.AbstractFirLightTreeJvmIrTextTest
+import org.jetbrains.kotlin.test.runners.ir.AbstractFirPsiJvmIrTextTest
+import org.jetbrains.kotlin.test.runners.ir.interpreter.AbstractJvmIrInterpreterAfterFirPsi2IrTest
+import org.jetbrains.kotlin.test.runners.ir.interpreter.AbstractJvmIrInterpreterAfterPsi2IrTest
 import org.jetbrains.kotlin.test.utils.CUSTOM_TEST_DATA_EXTENSION_PATTERN
 import org.jetbrains.kotlin.visualizer.fir.AbstractFirVisualizerTest
 import org.jetbrains.kotlin.visualizer.psi.AbstractPsiVisualizerTest
@@ -26,6 +29,10 @@ fun generateJUnit5CompilerTests(args: Array<String>) {
                 model("diagnostics/testsWithStdLib", excludedPattern = excludedCustomTestdataPattern)
             }
 
+            testClass<AbstractJdk21DiagnosticTest> {
+                model("diagnostics/testsWithJdk21", excludedPattern = excludedCustomTestdataPattern)
+            }
+
             testClass<AbstractDiagnosticUsingJavacTest> {
                 model("diagnostics/tests/javac", pattern = "^(.*)\\.kts?$", excludedPattern = excludedCustomTestdataPattern)
             }
@@ -209,6 +216,14 @@ fun generateJUnit5CompilerTests(args: Array<String>) {
                 model("diagnostics/testsWithStdLib", excludedPattern = excludedCustomTestdataPattern)
             }
 
+            testClass<AbstractFirPsiJdk21DiagnosticTest> {
+                model("diagnostics/testsWithJdk21", excludedPattern = excludedCustomTestdataPattern)
+            }
+
+            testClass<AbstractFirLightTreeJdk21DiagnosticTest> {
+                model("diagnostics/testsWithJdk21", excludedPattern = excludedCustomTestdataPattern)
+            }
+
             testClass<AbstractFirPsiWithActualizerDiagnosticsTest>(suiteTestClassName = "FirOldFrontendMPPDiagnosticsWithPsiTestGenerated") {
                 model("diagnostics/tests/multiplatform", pattern = "^(.*)\\.kts?$", excludedPattern = excludedCustomTestdataPattern)
             }

compiler/tests-java8/tests/org/jetbrains/kotlin/serialization/builtins/AdditionalBuiltInsMembersSignatureListsTest.kt

@@ -75,6 +75,7 @@ class AdditionalBuiltInsMembersSignatureListsTest : KotlinTestWithEnvironment()
         }
     }
 
+    // TODO: Get rid of it once JDK 21 is released (KT-58765 for tracking)
     private val LATE_JDK_SIGNATURES = mapOf(
         "java/util/List" to setOf(
             // From JDK 21