Bump Kotlin to 2.1.0 (#6291)

* Add Kotlin Dev and Maven Central Snapshots repositories

* Bump Kotlin to 2.1.0-Beta1

(cherry picked from commit 5cbb969)

* Update yarn.lock

* Bump agp

* Add kotlinx-browser to wasm dependencies

* Run Gradle LanguageVersion tests with Kotlin min version

* Use kotlin-test 2.0 in apollo-compiler in order to not break generated code compilation with 1.9

* Prefix private fields with _ to workaround google/ksp#2135

* Bump Kotlin and KSP

* Bump Kotlin and KSP

* Bump Kotlin and KSP

* Bump Kotlin and KSP

* Bump Kotlin and KSP

* Bump Kotlin and KSP

* Bump Kotlin and KSP

* Bump Kotlin and KSP

* Bump Kotlin and KSP

* Bump Kotlin and KSP

* Bump Kotlin and KSP

* Bump Kotlin and KSP

* Bump Kotlin and KSP

* Bump Kotlin and KSP

* Use stable versions

* Add a note about google/ksp#2135

* Revert android-plugin bump and avoid using options.release only on Android

* [infra] Use same version as apiVersion for stdlib & friends (#6293)

* Use same version as apiVersion for stdlib & friends

See https://youtrack.jetbrains.com/issue/KT-58999/

* Do not conflict with KGP dependency handling

* Keep JS stdlib aligned with the compiler

* fixed parallel forks

* Revert "fixed parallel forks"

This reverts commit 479651f.

* more heap size

---------

Co-authored-by: Anka <[email protected]>
Co-authored-by: Anka <[email protected]>
Co-authored-by: Anka <[email protected]>
Co-authored-by: Anka <[email protected]>
Co-authored-by: Anka <[email protected]>
Co-authored-by: Anka <[email protected]>
Co-authored-by: Anka <[email protected]>
Co-authored-by: Anka <[email protected]>
Co-authored-by: Anka <[email protected]>
Co-authored-by: Anka <[email protected]>
Co-authored-by: Anka <[email protected]>
Co-authored-by: Anka <[email protected]>
Co-authored-by: Anka <[email protected]>
Co-authored-by: Anka <[email protected]>
Co-authored-by: Anka <[email protected]>
Co-authored-by: Martin Bonnin <[email protected]>

Author: 17 people

build-logic/src/main/kotlin/CompilerOptions.kt

@@ -1,7 +1,7 @@
-
 import com.android.build.gradle.BaseExtension
 import org.gradle.api.JavaVersion
 import org.gradle.api.Project
+import org.gradle.api.artifacts.ExternalDependency
 import org.gradle.api.plugins.JavaPluginExtension
 import org.gradle.api.tasks.compile.JavaCompile
 import org.gradle.api.tasks.testing.Test
@@ -29,6 +29,7 @@ fun KotlinCommonCompilerOptions.configure(target: Int, kotlinCompilerOptions: Ko
       // D8 can dex Java17 bytecode
       17
     }
+
     else -> target
   }
 
@@ -67,7 +68,7 @@ fun KotlinCommonCompilerOptions.configure(target: Int, kotlinCompilerOptions: Ko
 }
 
 private fun Int.toJvmTarget(): JvmTarget {
-  return when(this) {
+  return when (this) {
     8 -> JvmTarget.JVM_1_8
     else -> JvmTarget.fromTarget(this.toString())
   }
@@ -107,14 +108,20 @@ val Project.androidExtensionOrNull: BaseExtension?
 
 fun Project.configureJavaAndKotlinCompilers(jvmTarget: Int?, kotlinCompilerOptions: KotlinCompilerOptions) {
   @Suppress("NAME_SHADOWING")
-  val jvmTarget = jvmTarget?: 8
+  val jvmTarget = jvmTarget ?: 8
 
   kotlinExtensionOrNull?.forEachCompilerOptions { isAndroid ->
     configure(jvmTarget, kotlinCompilerOptions, isAndroid)
   }
   project.tasks.withType(JavaCompile::class.java).configureEach {
     // For JVM only modules, this dictates the "org.gradle.jvm.version" Gradle attribute
-    options.release.set(jvmTarget)
+    if (androidExtensionOrNull == null) {
+      options.release.set(jvmTarget)
+    } else {
+      // Do not use options.release - see https://issuetracker.google.com/issues/278800528
+      sourceCompatibility = "$jvmTarget"
+      targetCompatibility = "$jvmTarget"
+    }
   }
   androidExtensionOrNull?.run {
     compileOptions {
@@ -141,6 +148,7 @@ fun Project.configureJavaAndKotlinCompilers(jvmTarget: Int?, kotlinCompilerOptio
     toolchain.languageVersion.set(JavaLanguageVersion.of(17))
   }
 
+  kotlinExtensionOrNull?.coreLibrariesVersion = "${kotlinCompilerOptions.version.version}.0"
   /**
    * Required because of:
    *

gradle.properties

@@ -30,3 +30,5 @@ org.gradle.parallel=true
 org.jetbrains.dokka.experimental.gradle.pluginMode=V2Enabled
 org.jetbrains.dokka.experimental.gradle.pluginMode.noWarn=true
 org.jetbrains.dokka.gradle.enableLogHtmlPublicationLink=false
+
+ksp.useKSP2=true

gradle/libraries.toml

@@ -1,6 +1,7 @@
 [versions]
 # The version we use by default in tests and benchmarks
 # Can be as high as IJ supports
+# Consult https://kotlinlang.org/docs/multiplatform-compatibility-guide.html#version-compatibility for compatibility with KGP
 android-plugin = "8.2.2"
 # The version we compile against
 android-plugin-min = "8.0.0"
@@ -27,13 +28,12 @@ javaPoet = "1.13.0"
 jetbrains-annotations = "24.0.1"
 junit = "4.13.2"
 kotlin-plugin-min = "1.9.0"
-kotlin-plugin = "2.0.20"
-kotlin-plugin-max = "2.0.20"
-kotlin-stdlib = "2.0.0"
+kotlin-plugin = "2.1.0"
+kotlin-plugin-max = "2.1.0"
 kotlinx-coroutines = "1.9.0"
 kotlinx-datetime = "0.5.0"
 kotlinx-serialization-runtime = "1.6.2"
-ksp = "2.0.20-1.0.24"
+ksp = "2.1.0-1.0.29"
 ktor = "3.0.0"
 moshix = "0.14.1"
 node-fetch = "2.6.7"
@@ -117,24 +117,28 @@ intellij-changelog = "org.jetbrains.intellij.plugins:gradle-changelog-plugin:2.0
 jetbrains-annotations = { group = "org.jetbrains", name = "annotations", version.ref = "jetbrains-annotations" }
 junit = { group = "junit", name = "junit", version.ref = "junit" }
 kotlin-allopen = { group = "org.jetbrains.kotlin", name = "kotlin-allopen", version.ref = "kotlin-plugin" }
-kotlin-compiletesting = { group = "dev.zacsweers.kctfork", name = "core", version = "0.4.0" }
+kotlin-compiletesting = { group = "dev.zacsweers.kctfork", name = "core", version = "0.6.0" }
 graphql-java = "com.graphql-java:graphql-java:20.4"
 # The main kotlin version for build-logic and Gradle tests
 kotlin-plugin = { group = "org.jetbrains.kotlin", name = "kotlin-gradle-plugin", version.ref = "kotlin-plugin" }
 kotlin-plugin-compose = { group = "org.jetbrains.kotlin", name = "compose-compiler-gradle-plugin", version.ref = "kotlin-plugin" }
 # For Gradle integration tests to make sure we stay compatible with 1.5.0
 kotlin-plugin-min = { group = "org.jetbrains.kotlin", name = "kotlin-gradle-plugin", version.ref = "kotlin-plugin-min" }
 kotlin-plugin-max = { group = "org.jetbrains.kotlin", name = "kotlin-gradle-plugin", version.ref = "kotlin-plugin-max" }
-kotlin-reflect = { group = "org.jetbrains.kotlin", name = "kotlin-reflect" } # the Kotlin plugin resolves the version
-kotlin-stdlib-common = { group = "org.jetbrains.kotlin", name = "kotlin-stdlib-common", version.ref = "kotlin-stdlib" }
-kotlin-stdlib-jvm = { group = "org.jetbrains.kotlin", name = "kotlin-stdlib", version.ref = "kotlin-stdlib" }
-kotlin-stdlib-js = { group = "org.jetbrains.kotlin", name = "kotlin-stdlib-js", version.ref = "kotlin-stdlib" }
-kotlin-stdlib-wasm-js = { group = "org.jetbrains.kotlin", name = "kotlin-stdlib-wasm-js", version.ref = "kotlin-stdlib" }
-kotlin-test = { group = "org.jetbrains.kotlin", name = "kotlin-test" } # the Kotlin plugin resolves the version
-kotlin-test-js = { group = "org.jetbrains.kotlin", name = "kotlin-test-js" } # the Kotlin plugin resolves the version
-kotlin-test-junit = { group = "org.jetbrains.kotlin", name = "kotlin-test-junit" } # the Kotlin plugin resolves the version
+kotlin-reflect = { group = "org.jetbrains.kotlin", name = "kotlin-reflect" } # use same version as apiVersion
+kotlin-stdlib-common = { group = "org.jetbrains.kotlin", name = "kotlin-stdlib-common" } # use same version as apiVersion
+kotlin-stdlib-jvm = { group = "org.jetbrains.kotlin", name = "kotlin-stdlib" } # use same version as apiVersion
+kotlin-test = { group = "org.jetbrains.kotlin", name = "kotlin-test" } # use same version as apiVersion
+kotlin-test-js = { group = "org.jetbrains.kotlin", name = "kotlin-test-js" } # use same version as apiVersion
+kotlin-test-junit = { group = "org.jetbrains.kotlin", name = "kotlin-test-junit" } # use same version as apiVersion
+# Kotlin/JS has no apiVersion:
+# The Kotlin/JS standard library has an older version (2.0.20-release-360) than the compiler (2.1.0). Such a configuration is not supported.
+# Please, make sure that the standard library has the version in the range [2.1.0 .. 2.1.255]. Adjust your project's settings if necessary.
+kotlin-stdlib-js = { group = "org.jetbrains.kotlin", name = "kotlin-stdlib-js", version.ref = "kotlin-plugin" }
+kotlin-stdlib-wasm-js = { group = "org.jetbrains.kotlin", name = "kotlin-stdlib-wasm-js", version.ref = "kotlin-plugin"  }
 kotlinx-benchmark-runtime = "org.jetbrains.kotlinx:kotlinx-benchmark-runtime:0.4.8"
 kotlinx-benchmark = "org.jetbrains.kotlinx:kotlinx-benchmark-plugin:0.4.12"
+kotlinx-browser = "org.jetbrains.kotlinx:kotlinx-browser:0.2"
 androidx-benchmark-macro = "androidx.benchmark:benchmark-macro-junit4:1.2.0-alpha16"
 kotlinx-coroutines = { group = "org.jetbrains.kotlinx", name = "kotlinx-coroutines-core", version.ref = "kotlinx-coroutines" }
 kotlinx-coroutines-rx2 = { group = "org.jetbrains.kotlinx", name = "kotlinx-coroutines-rx2", version.ref = "kotlinx-coroutines" }

gradle/repositories.gradle.kts

@@ -2,6 +2,8 @@ listOf(pluginManagement.repositories, dependencyResolutionManagement.repositorie
   it.apply {
     // Uncomment this one to use the Kotlin "dev" repository
     // maven { url = uri("https://maven.pkg.jetbrains.space/kotlin/p/kotlin/dev/") }
+    // Uncomment this one to use the Sonatype OSSRH snapshots repository
+    // maven { url = uri("https://oss.sonatype.org/content/repositories/snapshots/") }
 
     mavenCentral()
     exclusiveContent {

intellij-plugin/build.gradle.kts

@@ -28,6 +28,8 @@ commonSetup()
 repositories {
   // Uncomment this one to use the Kotlin "dev" repository
   // maven { url = uri("https://maven.pkg.jetbrains.space/kotlin/p/kotlin/dev/") }
+  // Uncomment this one to use the Sonatype OSSRH snapshots repository
+  // maven { url = uri("https://oss.sonatype.org/content/repositories/snapshots/") }
   mavenCentral()
 
   intellijPlatform {

kotlin-js-store-2.0/yarn.lock renamed to kotlin-js-store-2.1/yarn.lock

@@ -67,11 +67,11 @@ brace-expansion@^2.0.1:
     balanced-match "^1.0.0"
 
 braces@~3.0.2:
-  version "3.0.2"
-  resolved "https://registry.yarnpkg.com/braces/-/braces-3.0.2.tgz#3454e1a462ee8d599e236df336cd9ea4f8afe107"
-  integrity sha512-b8um+L1RzM3WDSzvhm6gIz1yfTbBt6YTlcEKAvsmqCZZFw46z626lVj9j1yEPW33H5H+lBQpZMP1k8l+78Ha0A==
+  version "3.0.3"
+  resolved "https://registry.yarnpkg.com/braces/-/braces-3.0.3.tgz#490332f40919452272d55a8480adc0c441358789"
+  integrity sha512-yQbXgO/OSZVD2IsiLlro+7Hf6Q18EJrKSEsdoMzKePKXct3gvD8oLcOQdIzGupr5Fj+EDe8gO/lxc1BzfMpxvA==
   dependencies:
-    fill-range "^7.0.1"
+    fill-range "^7.1.1"
 
 browser-stdout@^1.3.1:
   version "1.3.1"
@@ -133,11 +133,11 @@ color-name@~1.1.4:
   integrity sha512-dOy+3AuW3a2wNbZHIuMZpTcgjGuLU/uBL/ubcZF9OXbDo8ff4O8yVp5Bf0efS8uEoYo5q4Fx7dY9OgQGXgAsQA==
 
 debug@^4.3.5:
-  version "4.3.6"
-  resolved "https://registry.yarnpkg.com/debug/-/debug-4.3.6.tgz#2ab2c38fbaffebf8aa95fdfe6d88438c7a13c52b"
-  integrity sha512-O/09Bd4Z1fBrU4VzkhFqVgpPzaGbw6Sm9FEkBT1A/YBXQFGuuSxa1dN2nxgxS34JmKXqYx8CZAwEVoJFImUXIg==
+  version "4.3.7"
+  resolved "https://registry.yarnpkg.com/debug/-/debug-4.3.7.tgz#87945b4151a011d76d95a198d7111c865c360a52"
+  integrity sha512-Er2nc/H7RrMXZBFCEim6TCmMk02Z8vLC2Rbi1KEBggpo0fS6l0S1nnapwmIi3yW/+GOJap1Krg4w0Hg80oCqgQ==
   dependencies:
-    ms "2.1.2"
+    ms "^2.1.3"
 
 decamelize@^4.0.0:
   version "4.0.0"
@@ -155,9 +155,9 @@ emoji-regex@^8.0.0:
   integrity sha512-MSjYzcWNOA0ewAHpz0MxpYFvwg6yjy1NG3xteoqz644VCo/RPgnr1/GGt+ic3iJTzQ8Eu3TdM14SawnVUmGE6A==
 
 escalade@^3.1.1:
-  version "3.1.2"
-  resolved "https://registry.yarnpkg.com/escalade/-/escalade-3.1.2.tgz#54076e9ab29ea5bf3d8f1ed62acffbb88272df27"
-  integrity sha512-ErCHMCae19vR8vQGe50xIsVomy19rg6gFu3+r3jkEO46suLMWBksvVyoGgQV+jOfl84ZSOSlmv6Gxa89PmTGmA==
+  version "3.2.0"
+  resolved "https://registry.yarnpkg.com/escalade/-/escalade-3.2.0.tgz#011a3f69856ba189dffa7dc8fcce99d2a87903e5"
+  integrity sha512-WUj2qlxaQtO4g6Pq5c29GTcWGDyd8itL8zTlipgECz3JesAiiOKotd8JU6otB3PACgG6xkJUyVhboMS+bje/jA==
 
 escape-string-regexp@^4.0.0:
   version "4.0.0"
@@ -169,10 +169,10 @@ event-target-shim@^5.0.0:
   resolved "https://registry.yarnpkg.com/event-target-shim/-/event-target-shim-5.0.1.tgz#5d4d3ebdf9583d63a5333ce2deb7480ab2b05789"
   integrity sha512-i/2XbnSz/uxRCU6+NdVJgKWDTM427+MqYbkQzD321DuCQJUqOuJKIA0IM2+W2xtYHdKOmZ4dR6fExsd4SXL+WQ==
 
-fill-range@^7.0.1:
-  version "7.0.1"
-  resolved "https://registry.yarnpkg.com/fill-range/-/fill-range-7.0.1.tgz#1919a6a7c75fe38b2c7c77e5198535da9acdda40"
-  integrity sha512-qOo9F+dMUmC2Lcb4BbVvnKJxTPjCm+RRpe4gDuGrzkL7mEVl/djYSu2OdQ2Pa302N4oqkSg9ir6jaLWJ2USVpQ==
+fill-range@^7.1.1:
+  version "7.1.1"
+  resolved "https://registry.yarnpkg.com/fill-range/-/fill-range-7.1.1.tgz#44265d3cac07e3ea7dc247516380643754a05292"
+  integrity sha512-YsGpe3WHLK8ZYi4tWDg2Jy3ebRz2rXowDxnld4bkQB00cc/1Zw9AWnC0i9ztDJitivtQvaI9KaLyKrc+hBW0yg==
   dependencies:
     to-regex-range "^5.0.1"
 
@@ -296,6 +296,13 @@ js-yaml@^4.1.0:
   dependencies:
     argparse "^2.0.1"
 
+[email protected]:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/kotlin-web-helpers/-/kotlin-web-helpers-2.0.0.tgz#b112096b273c1e733e0b86560998235c09a19286"
+  integrity sha512-xkVGl60Ygn/zuLkDPx+oHj7jeLR7hCvoNF99nhwXMn8a3ApB4lLiC9pk4ol4NHPjyoCbvQctBqvzUcp8pkqyWw==
+  dependencies:
+    format-util "^1.0.5"
+
 locate-path@^6.0.0:
   version "6.0.0"
   resolved "https://registry.yarnpkg.com/locate-path/-/locate-path-6.0.0.tgz#55321eb309febbc59c4801d931a72452a681d286"
@@ -318,10 +325,10 @@ minimatch@^5.0.1, minimatch@^5.1.6:
   dependencies:
     brace-expansion "^2.0.1"
 
-[email protected].0:
-  version "10.7.0"
-  resolved "https://registry.yarnpkg.com/mocha/-/mocha-10.7.0.tgz#9e5cbed8fa9b37537a25bd1f7fb4f6fc45458b9a"
-  integrity sha512-v8/rBWr2VO5YkspYINnvu81inSz2y3ODJrhO175/Exzor1RcEZZkizgE2A+w/CAXXoESS8Kys5E62dOHGHzULA==
+[email protected].3:
+  version "10.7.3"
+  resolved "https://registry.yarnpkg.com/mocha/-/mocha-10.7.3.tgz#ae32003cabbd52b59aece17846056a68eb4b0752"
+  integrity sha512-uQWxAu44wwiACGqjbPYmjo7Lg8sFrS3dQe7PP2FQI+woptP4vZXSMcfMyFL/e1yFEeEpV4RtyTpZROOKmxis+A==
   dependencies:
     ansi-colors "^4.1.3"
     browser-stdout "^1.3.1"
@@ -344,11 +351,6 @@ [email protected]:
     yargs-parser "^20.2.9"
     yargs-unparser "^2.0.0"
 
-[email protected]:
-  version "2.1.2"
-  resolved "https://registry.yarnpkg.com/ms/-/ms-2.1.2.tgz#d09d1f357b443f493382a8eb3ccd183872ae6009"
-  integrity sha512-sGkPx+VjMtmA6MX27oA4FBFELFCZZ4S4XqeGOXCv68tT+jb3vk/RyaKWP0PTKyWtmLSM0b+adUTEvbs1PEaH2w==
-
 ms@^2.1.3:
   version "2.1.3"
   resolved "https://registry.yarnpkg.com/ms/-/ms-2.1.3.tgz#574c8138ce1d2b5861f0b44579dbadd60c6615b2"

libraries/apollo-debug-server/build.gradle.kts

@@ -1,6 +1,4 @@
-
 import org.jetbrains.dokka.gradle.tasks.DokkaGenerateTask
-import org.jetbrains.kotlin.gradle.dsl.KotlinVersion
 
 plugins {
   id("org.jetbrains.kotlin.multiplatform")
@@ -16,11 +14,6 @@ apolloLibrary(
     withJs = false,
     withWasm = false,
     androidOptions = AndroidOptions(withCompose = false),
-    // Can't use apiVersion KOTLIN_2_0 when using languageVersion KOTLIN_1_9, which is the case here because we're using KSP 1
-    // TODO: move to KSP 2 and remove this when https://github.com/google/ksp/issues/1823 is resolved
-    kotlinCompilerOptions = KotlinCompilerOptions(
-        version = KotlinVersion.KOTLIN_1_9,
-    )
 )
 
 kotlin {

libraries/apollo-debug-server/src/commonMain/kotlin/com/apollographql/apollo/debugserver/internal/graphql/GraphQL.kt

@@ -6,11 +6,11 @@ import com.apollographql.apollo.api.ExecutionContext
 import com.apollographql.apollo.ast.GQLValue
 import com.apollographql.execution.Coercing
 import com.apollographql.execution.ExecutableSchema
+import com.apollographql.execution.ExternalValue
 import com.apollographql.execution.StringCoercing
 import com.apollographql.execution.annotation.GraphQLName
 import com.apollographql.execution.annotation.GraphQLQuery
 import com.apollographql.execution.annotation.GraphQLScalar
-import com.apollographql.execution.ExternalValue
 import com.apollographql.execution.parseAsGraphQLRequest
 import kotlinx.coroutines.runBlocking
 import okio.Buffer
@@ -49,12 +49,13 @@ internal class GraphQL(
  * The root query
  */
 @GraphQLQuery
-internal class Query(private val apolloClients: AtomicReference<Map<ApolloClient, String>>) {
+// Prefixing private fields with _ to work around https://github.com/google/ksp/issues/2135
+internal class Query(private val _apolloClients: AtomicReference<Map<ApolloClient, String>>) {
   private fun graphQLApolloClients() =
-    apolloClients.get().map { (apolloClient, apolloClientId) ->
+    _apolloClients.get().map { (apolloClient, apolloClientId) ->
       GraphQLApolloClient(
-          id = apolloClientId,
-          apolloClient = apolloClient
+          _id = apolloClientId,
+          _apolloClient = apolloClient
       )
     }
 
@@ -72,17 +73,17 @@ internal class Query(private val apolloClients: AtomicReference<Map<ApolloClient
 
 @GraphQLName("ApolloClient")
 internal class GraphQLApolloClient(
-    private val id: String,
-    private val apolloClient: ApolloClient,
+    private val _id: String,
+    private val _apolloClient: ApolloClient,
 ) {
-  fun id(): ID = id
+  fun id(): ID = _id
 
-  fun displayName() = id
+  fun displayName() = _id
 
   fun normalizedCaches(): List<NormalizedCache> {
-    val cacheDumpProvider = apolloClient.executionContext[CacheDumpProviderContext]?.cacheDumpProvider ?: return emptyList()
+    val cacheDumpProvider = _apolloClient.executionContext[CacheDumpProviderContext]?.cacheDumpProvider ?: return emptyList()
     return cacheDumpProvider().map { (displayName, cacheDump) ->
-      NormalizedCache(apolloClientId = id, displayName = displayName, cacheDump = cacheDump)
+      NormalizedCache(apolloClientId = _id, _displayName = displayName, _cacheDump = cacheDump)
     }
   }
 
@@ -93,34 +94,34 @@ internal class GraphQLApolloClient(
 
 internal class NormalizedCache(
     apolloClientId: ID,
-    private val displayName: String,
-    private val cacheDump: CacheDump,
+    private val _displayName: String,
+    private val _cacheDump: CacheDump,
 ) {
-  private val id: String = "$apolloClientId:$displayName"
+  private val id: String = "$apolloClientId:$_displayName"
   fun id(): ID = id
 
-  fun displayName() = displayName
+  fun displayName() = _displayName
 
-  fun recordCount() = cacheDump.count()
+  fun recordCount() = _cacheDump.count()
 
   fun records(): List<GraphQLRecord> =
-    cacheDump.map { (key, record) -> GraphQLRecord(key = key, sizeInBytes = record.first, fields = record.second) }
+    _cacheDump.map { (key, record) -> GraphQLRecord(_key = key, _sizeInBytes = record.first, _fields = record.second) }
 }
 
 @GraphQLScalar(FieldsCoercing::class)
 typealias Fields = Map<String, Any?>
 
 @GraphQLName("Record")
 internal class GraphQLRecord(
-    private val key: String,
-    private val sizeInBytes: Int,
-    private val fields: Fields,
+    private val _key: String,
+    private val _sizeInBytes: Int,
+    private val _fields: Fields,
 ) {
-  fun key(): String = key
+  fun key(): String = _key
 
-  fun fields(): Fields = fields
+  fun fields(): Fields = _fields
 
-  fun sizeInBytes(): Int = sizeInBytes
+  fun sizeInBytes(): Int = _sizeInBytes
 }
 
 internal object FieldsCoercing : Coercing<Fields> {

libraries/apollo-gradle-plugin/build.gradle.kts

@@ -150,6 +150,8 @@ tasks.withType<Test> {
   addRelativeInput("testFiles", "testFiles")
   addRelativeInput("testProjects", "testProjects")
 
+  maxHeapSize = "1g"
+
   maxParallelForks = (Runtime.getRuntime().availableProcessors() / 2).takeIf { it > 0 } ?: 1
 }