[dependabot]

Bumps org.jetbrains.kotlin:kotlin-stdlib-jdk8 in /kits/adobemedia/adobemedia-3 from 2.1.20 to 2.1.21.

Updates org.jetbrains.kotlin:kotlin-stdlib-jdk8 from 2.1.20 to 2.1.21

Release notes

Sourced from org.jetbrains.kotlin:kotlin-stdlib-jdk8's releases.

Kotlin 2.1.21

Changelog

Backend. Native. Debug

• KT-75991 Xcode 16.3: Fix lldb stepping test over an inline function

Compiler

• KT-75992 Xcode 16.3: stacktraces on simulators are not symbolicated
• KT-76663 KJS: KotlinNothingValueException caused by expression return since 2.1.20
• KT-75756 Backend Internal error: Exception during IR lowering when trying to access variable from providedProperties in class within kotlin custom script
• KT-76209 CONFLICTING_UPPER_BOUNDS on Nothing bound
• KT-70352 K2: False-negative CONFLICTING_UPPER_BOUNDS on Nothing bound
• KT-74739 Native: "IllegalArgumentException: All constructors should've been lowered: FUNCTION_REFERENCE"
• KT-75483 Native: redundant unboxing generated with smart cast
• KT-71425 IR Inliner: investigate return type of an inlined block

Native

• KT-76252 Native: executable crash with generic value classes with 2.1.20

Native. C and ObjC Import

• KT-75781 Xcode 16.3: Fix cinterop tests failing with fatal error: could not build module '_stdint'

Native. Runtime. Memory

• KT-74280 Native: GC.collect crashes with -Xallocator=std

Tools. CLI

• KT-75588 [2.1.20-RC] "was compiled by a pre-release version of Kotlin and cannot be loaded by this version of the compiler" warnings despite using the same compiler version
• KT-74663 kotlinc-js CLI: not providing -ir-output-dir results in NullPointerException

Tools. Compiler Plugins

• KT-76162 "IllegalStateException: No mapping for symbol: VALUE_PARAMETER INSTANCE_RECEIVER" after updating to 2.1.20

Tools. Gradle

• KT-73682 Compatibility with Gradle 8.12 release
• KT-73142 Kotlin Gradle plugin: Remove usage of Gradle's internal ExecHandleBuilder
• KT-36004 Update 'org.gradle.usage' attribute rules to support the 'JAVA_API' and 'JAVA_RUNTIME' value
• KT-73968 KotlinDependencyManagement tries to mutate configuration after it was resolved
• KT-73684 Run integration tests against Gradle 8.12
• KT-72694 Accessing Task.project during execution is being deprecated in Gradle 8.12
• KT-73683 Compile against Gradle API 8.12

Tools. Gradle. JS

... (truncated)

Changelog

Sourced from org.jetbrains.kotlin:kotlin-stdlib-jdk8's changelog.

2.4.21

Backend. Wasm

• KT-89267 K/Wasm: calling a (T) -> R lambda with an argument that isn't a T traps instead of throwing ClassCastException

JVM. Reflection

• KT-89280 NoSuchElementException in argumentsMakeSenseOnlyForMutableContainer for Java non-static inner class of generic outer class
• KT-80710 Reflection: change KCallable representation to avoid dependency on K1

JavaScript

• KT-89449 Kotlin/JS: Member names no longer minified in production
• KT-89363 KJS. Regular class with companion can't extend external class

Tools. Compiler plugins. Serialization

• KT-89275 Kotlin/Wasm: Invalid Wasm is emitted for a @Serializable generic class with a class upper bound

Tools. Gradle. Native

• KT-89285 SwiftPM import results in flooded log
• KT-86251 K/N: Flaky linkDebugTestLinuxX64 failure with "truncated or malformed archive" on libstdlib-cache.a

Tools. Scripts

• KT-89247 Kotlin Script: NoClassDefFoundError on 2nd execution with transitive dependency from imported script
• KT-89220 JSR-223: generic Java bindings break all subsequent eval() calls
• KT-88458 Audit closeable resource usage
• KT-88453 VirtualFileScriptSource.text leaks an unclosed file stream — script source file handle held until GC, blocks file deletion on Windows

2.4.20

Analysis API

• KT-86546 Check suspicious when over ConeKotlinType in ConeTypeCompatibilityChecker
• KT-85418 Implement an API for accessing deserialized file annotations in Analysis API
• KT-74448 K2. False positive MISSING_DEPENDENCY_SUPERCLASS in LinkedListTest.kt, kotlinx.coroutines
• KT-85856 containingSymbol of constructor property differs for local and non-local classes
• KT-65417 K2 IDE: KTOR false positive expect-actual matching error on enum class because of implicit clone() in non-JVM source sets

Analysis API. Code Compilation

• KT-76457 K2 IDE / KMP Debugger: KISEWA “Cannot compile a common source without a JVM counterpart” on evaluating inline fun from common module inside jvm

Analysis API. FIR

• KT-70552 No expects for actual

... (truncated)

Commits

• f59375a Add ChangeLog for 2.1.21-RC2
• 301186f [Gradle] Fix passing process environment when launching KotlinKarma tests
• 12b4021 Add changelog for 2.1.21-RC
• e16f5a8 [IC] Update inline function snapshotting
• 5f12d8b [Cherry-picks] Update BTA specific parts for the release branch
• f025799 [IC] Additional test cases for inline function snapshotting
• 58df05e [Tests] More tests for inline fun abi snapshotting
• 9512893 [KGP] Experimental: support incremental changes in inlined local classes
• 950cee5 [IC] Additional test cases for inlined lambda snapshotting
• a0a8ca0 [BTA Tests] Fix changedSources tracking when compilation fail is expected
• Additional commits viewable in compare view

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[github-actions]

Kotlin migration progress

No change to the Java left to convert.

Module	Kotlin LOC	Java LOC	Java staying (facade)	Java left to convert	Kotlin share
android-core	3,249	22,690	9,716	12,974	12.5%
android-kit-base	601	5,405	1,651	3,754	10.0%
Total	3,850	28,095	11,367	16,728	12.1%

Conversion progress: 0.0% (16,728 of 16,550 baseline Java LOC left to convert). 132 Java files and 36 Kotlin files in scope.

[github-actions]

Binary compatibility

• ✅ android-core is compatible with 6.1.9 (115 classes compared, 0 with additions only).
• ✅ android-kit-base is compatible with 6.1.9 (44 classes compared, 0 with additions only).

Compares the release AAR against the same artifact at the last version published to Maven Central; R8-renamed classes and members are excluded (see the script docstring). Full japicmp HTML/XML reports are attached as the api-compat-reports workflow artifact. This check is not in the required-check set yet, so a red result here does not block merging.

[claude]

I reviewed this PR and found no bugs. The repo's CODEOWNERS covers this path, so a maintainer still needs to sign off, and one detail is worth a decision.

What was reviewed:

• The one-line ext.kotlin_version bump in kits/adobemedia/adobemedia-3/build.gradle. That value drives the Kotlin Gradle plugin classpath, the kotlin-stdlib* force/resolution rules and the published kotlin-stdlib dependency.
• This kit is built as part of the shared settings-kits.gradle build, not as a standalone kit. The root build.gradle and every other kit in that build still pin 2.1.20. After this change, adobemedia-3 would be the only kit on 2.1.21, and its published stdlib dependency would go up a patch version. Please decide whether to take this bump on its own or update all the kits together.

Extended reasoning...

This is a Dependabot patch bump of Kotlin from 2.1.20 to 2.1.21 in one kit's build.gradle. It touches no source, auth, crypto or data-handling code. I deferred instead of approving for two reasons. First, CODEOWNERS assigns every path to the SDK team. Second, adobemedia-3 is in the shared kits build (settings-kits.gradle), where the root and all the other kits still use 2.1.20, so this change makes its Kotlin version differ from theirs.

[github-actions]

📦 SDK Size Impact Report

What the SDK adds to a minified release APK.

mParticle Core SDK

Measured against an empty baseline app. Unlike the Rokt kit, android-core ships no Compose and no resources, so there is nothing here that a host app would already provide.

Metric	Target branch	This PR	Change
APK size	120.63 KB	120.62 KB	-8 bytes
Download size	118.45 KB	118.44 KB	-12 bytes
Dex bytes	215.25 KB	215.25 KB	0 bytes

mParticle Core + Rokt kit

Measured against a Compose + Material3 reference app, so these are the costs on top of an app that already ships Compose. The reference app's dependencies are a documented convention, not a measured average: see size-report-rokt/README.md.

Metric	Target branch	This PR	Change
APK size	1.26 MB	1.26 MB	0 bytes
Download size	1.25 MB	1.25 MB	-4 bytes
Dex bytes	2.23 MB	2.23 MB	0 bytes

Rokt SDK+ umbrella (adds the payment extension)

Metric	Target branch	This PR	Change	On top of mParticle Core + Rokt kit
APK size	6.55 MB	6.55 MB	0 bytes	+5.29 MB
Download size	6.43 MB	6.43 MB	+1 bytes	+5.19 MB
Dex bytes	7.12 MB	7.12 MB	0 bytes	+4.88 MB

➡️ SDK size impact change is minimal.

Raw measurements

core, Target branch:

{"baseline_dex_bytes": 0, "baseline_download_bytes": 2510, "baseline_install_bytes": 7527, "core_dex_bytes": 220412, "core_download_bytes": 123805, "core_install_bytes": 131055}

core, This PR:

{"baseline_dex_bytes": 0, "baseline_download_bytes": 2514, "baseline_install_bytes": 7530, "core_dex_bytes": 220412, "core_download_bytes": 123797, "core_install_bytes": 131050}

rokt, Target branch:

{"baseline_dex_bytes": 1829108, "baseline_download_bytes": 1240062, "baseline_install_bytes": 1300934, "kit_dex_bytes": 4170020, "kit_download_bytes": 2548125, "kit_install_bytes": 2623275, "sdkplus_dex_bytes": 9291568, "sdkplus_download_bytes": 7985699, "sdkplus_install_bytes": 8165359}

rokt, This PR:

{"baseline_dex_bytes": 1829108, "baseline_download_bytes": 1240062, "baseline_install_bytes": 1300934, "kit_dex_bytes": 4170020, "kit_download_bytes": 2548121, "kit_install_bytes": 2623275, "sdkplus_dex_bytes": 9291568, "sdkplus_download_bytes": 7985700, "sdkplus_install_bytes": 8165359}

_{Measured 24a2931 merged into b7624a5}