1.23.8 still failed on JDK 25 with "25.0.3" — same opaque shape as the
original Gradle 8.10 failure. The 1.23.x line bundles kotlin-compiler-
embeddable 1.9.10 which doesn't actually run on JDK 25 despite the
release note claim.
2.0.0-alpha.3 is explicitly built against Kotlin 2.3.21 + Gradle 9.3.1
+ tested with JDK 25 (per release notes). Alpha is acceptable risk
given there's no stable 2.x and we're already on bleeding-edge AGP 9
+ Kotlin 2.3 elsewhere.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
detekt 1.23.7 choked on JDK 25 with an opaque "25.0.3" error (same
shape as the original Gradle 8.10 failure). Per the detekt 1.23.8
release notes (Feb 2025), it's the first 1.23.x version tested with
JDK 25. Still built against Kotlin 2.0.21 — fine for our small Phase 1
sources, no exotic Kotlin 2.3 syntax in use yet.
The `tasks.withType<Detekt> { jvmTarget = "17" }` pin from the
previous commit stays as belt-and-braces.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
The previous attempt opted out of AGP 9's built-in Kotlin (via
android.builtInKotlin=false + explicit kotlin-android plugin) because
the message from Gradle suggested it. But Kotlin 2.2.21's
kotlin-android plugin can't cast AGP 9's new ApplicationExtension to
the removed BaseExtension:
class ApplicationExtensionImpl$AgpDecorated_Decorated
cannot be cast to class com.android.build.gradle.BaseExtension
That suggestion is for projects with an older Kotlin toolchain. The
real fix:
- Kotlin 2.3.21 (latest stable; first line where kotlin-android also
supports AGP 9, but more importantly the built-in path works)
- KSP 2.3.8 — KSP PR #2674 (merged Oct 2025) added AGP 9 built-in
Kotlin support. KSP 1.x and pre-2.3 don't work with built-in Kotlin.
- Re-drop the kotlin-android plugin from both build.gradle.kts files;
AGP 9 enables built-in Kotlin by default and KSP 2.3 cooperates.
- Remove android.builtInKotlin=false from gradle.properties.
compose-compiler plugin tracks the Kotlin version via version.ref, so
no separate bump there.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Hilt 2.52 referenced AGP's old BaseExtension which AGP 9 removed,
causing ktlintCheck to fail at plugin-application time:
Failed to apply plugin 'com.google.dagger.hilt.android'.
> Android BaseExtension not found.
Dagger/Hilt 2.59+ adds AGP 9 support (and mandates it for the Gradle
plugin path). 2.59.2 is the current latest.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Original 8.x toolchain choked on the ci-android image's JDK 25 with an
opaque "25.0.3" error in `ktlintCheck`; Gradle 8.10's JDK compat matrix
caps at 23. Modern chain:
- Gradle 9.1.0 (first to support JDK 25)
- AGP 9.0.1 (requires Gradle 9.1+, requires Kotlin 2.2.10+)
- Kotlin 2.2.21 / KSP 2.2.21-2.0.5 (latest 2.2.x line)
- Compose BOM 2026.05.01 (current; pulls ui-text-google-fonts at the
BOM-managed version, so the explicit pin was dropped)
AGP 9.0 breaking changes that affected us:
- `kotlin-android` plugin no longer needed — AGP 9 auto-enables via
`android.builtInKotlin=true` default. Removed alias from both the
root build.gradle.kts and :app/build.gradle.kts.
- `applicationVariants` API removed; we don't use it.
- Other defaults flipped (useAndroidx, uniquePackageNames, etc.) but
we already set them explicitly or weren't relying on the old defaults.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
M8 phase 1.4. Mirrors flutter_client/lib/theme/. Source of truth for hex
values is flutter_client/shared/fabledsword.tokens.json (manual sync until
cross-language codegen lands; ports the dark-surface + flat cohort).
Material 3 ColorScheme takes accent as primary; action colors
(Moss/Bronze/Oxblood) live in LocalActionColors as semantic roles per the
project_design_system rule "NEVER use accent for action buttons".
Typography uses androidx.compose.ui.text.googlefonts to fetch Fraunces /
Inter / JetBrains Mono at runtime via Play Services Fonts — matches the
Flutter client's `google_fonts` package (no bundled .ttf files in either
tree). Weights restricted to 400/500. Fraunces is reserved for ≥18sp
display/headline slots per the design-system rule.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
M8 phase 1.1: empty multi-project Gradle scaffold (root + :app
placeholder). Version catalog establishes pinned Kotlin/AGP/Compose/
Hilt/Room/Media3/etc. versions for the whole module.
Gradle wrapper (8.10) reused from flutter_client/ — the wrapper jar
is a bootstrap and respects distributionUrl from gradle-wrapper.properties.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
bvandeusen