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sanderling/bug.md
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pj 6b1c17328c fix(sample-app): make it standalone, no repo_root assumptions (#8)
* fix(cli): fall back to node_modules for @uatu/spec resolution

Drop the hard failure when the uatu source tree is not reachable from
the spec file. Users integrating uatu in their own app have @uatu/spec
installed via npm; esbuild now resolves it from node_modules.

* build(gradle): drop :sample-app include from root settings

The sample now has its own Gradle project in examples/sample-app/android.

* build(sample-app): vendor gradle wrapper

Users running the sample build the APK via ./gradlew from inside the
sample-app's own android/ directory, no repo-root wrapper required.

* build(sample-app): make gradle project standalone

Drop the project(':sdk-android') dependency in favor of the Maven
Central coordinate io.github.priyanshujain:sdk-android. The sample now
owns its settings.gradle.kts and gradle.properties, so it builds
without any pieces of the uatu source tree.

* chore(sample-app): declare @uatu/spec npm dependency

Mirrors what a downstream user would put in their own package.json.
Uses file: for pre-release development; becomes a normal semver pin
once @uatu/spec ships to npm.

* docs(sample-app): rewrite justfile and add README

Justfile drops repo_root; all recipes run against the local gradle
wrapper and uatu from PATH. README is scoped to what a user needs to
run the sample against their own device.

* docs(manual): update sample install steps to standalone layout

./gradlew :sample-app:installDebug no longer exists; the sample owns
its own wrapper under android/.

* feat(sdk): log when Uatu.start succeeds

Silent SDK start makes the "SDK didn't connect" failure mode
impossible to debug. One INFO line at start time is enough.

* fix(sidecar): launch via am start -W instead of monkey

monkey -p <pkg> -c LAUNCHER 1 is unreliable on API 36+: it reports no
error but silently fails to start the activity, so the SDK never runs
and the CLI times out on the SDK-accept handshake.

Resolve the launcher activity via `cmd package resolve-activity
--brief` and launch it with `am start -W -n`. -W makes the call block
until the activity is up, which also makes the subsequent SDK
accept timing deterministic.

* feat(cli): auto-resolve Android device; boot AVD if none connected

--avd becomes optional. Resolution order:
 - use any already-connected adb device;
 - else if --avd names an existing AVD, boot it and wait for boot;
 - else if --avd is missing or names no AVD, error with a clear message.

Falls back to $ANDROID_HOME/emulator/emulator when the binary is not on
PATH, so a standard Android SDK install works without extra shell setup.

* docs(sample-app): AVD is optional; document both paths

just test runs against any connected device. If none, pass AVD=<name>
to have uatu boot the emulator for you.

* feat(cli): auto-discover Android SDK; auto-pick the lone AVD

adb and emulator are looked up via PATH, then $ANDROID_HOME,
$ANDROID_SDK_ROOT, ~/Library/Android/sdk, ~/Android/Sdk, and the
Homebrew cask path. The discovered platform-tools directory is
prepended to the sidecar's PATH so its adb subprocess calls work too.

When --avd isn't passed and no device is connected, the CLI picks the
sole local AVD and boots it. Multiple AVDs → error listing them.

* build(make): add `make install` that go-installs uatu onto PATH

Puts `uatu` into $GOBIN (or $GOPATH/bin) so the sample and any local
dev flow can call it without PATH= prefixes.

* docs(sample-app): zero-config just test; dotenv-load for persistence

Drop the expectation that users prefix commands with PATH=, ANDROID_HOME=,
or AVD=. `just test` now works as-is; optional knobs can be pinned in a
.env file alongside the justfile.

* fix(sample-app): auto-detect ANDROID_HOME for Gradle tasks

The Go CLI finds the SDK itself, but AGP still needs ANDROID_HOME to
resolve `sdk.dir`. The justfile now resolves it from env or canonical
install paths before invoking ./gradlew, so `just install` works out
of the box on a standard Android SDK setup.

* gitignore runs directory for sample app
2026-04-18 15:31:47 +07:00

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3.5 KiB
Markdown

# Dokka / Java 25 publish failure
## What fails
Running `./gradlew :sdk-android:publishToMavenLocal` (or any task that triggers `javaDocReleaseGeneration`) on a JDK 25 host crashes with:
```
Execution failed for task ':sdk-android:javaDocReleaseGeneration'.
> A failure occurred while executing com.android.build.gradle.tasks.JavaDocGenerationTask$DokkaWorkAction
...
Caused by: java.lang.IllegalArgumentException: 25.0.2
at com.intellij.util.lang.JavaVersion.parse(JavaVersion.java:298)
```
## Why it happens
The publish flow is:
1. `com.vanniktech.maven.publish:0.30.0` (declared in `sdk/android/build.gradle.kts:7`) configures an `AndroidSingleVariantLibrary` with `publishJavadocJar = true`.
2. That wires AGP's `JavaDocGenerationTask` into the release publication. The task runs Dokka in a `WorkAction`.
3. Dokka ships a vendored copy of IntelliJ's platform SDK. When it boots, it probes the JDK version by calling `com.intellij.util.lang.JavaVersion.parse(System.getProperty("java.version"))`.
4. On the host JDK the property is literally the string `"25.0.2"`. Dokka's bundled `JavaVersion.parse` (an older IntelliJ build) only understands the legacy patterns (`1.8.0_x`, `9`, `11.0.x`, etc.) and refuses version 25's format, throwing `IllegalArgumentException: 25.0.2`.
5. The worker dies, Gradle marks `javaDocReleaseGeneration` failed, and the whole publish lifecycle aborts before any POM or AAR is written.
## Why it's latent in CI
CI runs on JDK 17 per `build.gradle.kts` compile targets and whatever `actions/setup-java` installs. `"17.0.x"` matches the old format, so the bundled `JavaVersion.parse` doesn't blow up. The bug only surfaces on developer machines running JDK 21+ where the version string format changed, and reliably on JDK 25.
## Workaround
```sh
./gradlew :sdk-android:publishToMavenLocal -x javaDocReleaseGeneration
```
The AAR, sources jar, and POM publish cleanly; only the Javadoc jar is skipped. That produces a usable `0.0.0-dev` artifact for local testing but is not a substitute for a real release publish, since Maven Central validation requires the Javadoc jar.
## Possible fixes
1. **Bump the `vanniktech.maven.publish` plugin to a version that ships a newer Dokka.** The `0.30.0` version pinned here is from mid-2024. Newer releases (0.33+) bundle Dokka 2.x, which has rewritten the JDK detection path and handles modern version strings. One line in `sdk/android/build.gradle.kts`, no build config change. Requires verifying the plugin's breaking changes for the publish config.
2. **Pin a compatible Dokka directly.** Add `id("org.jetbrains.dokka") version "1.9.20"` (or later) so the plugin picks up Dokka's own fix for IntelliJ `JavaVersion.parse`. Slightly more invasive; you now manage Dokka independently from the publish plugin.
3. **Force a JDK toolchain for the javadoc task.** Add a `java { toolchain { languageVersion = JavaLanguageVersion.of(17) } }` block scoped to the SDK module (or use `tasks.withType<JavaDocGenerationTask> { javaLauncher.set(...) }`). Gradle downloads JDK 17 and runs Dokka under it regardless of the host JDK. Robust but adds a toolchain dependency to every dev machine's first build.
4. **Don't generate a Javadoc jar.** Flip `publishJavadocJar = false` in the vanniktech config. Kills the problem by removing the failing path. Not viable for Maven Central release (they require a Javadoc jar).
## Recommendation
Option 1. Smallest diff, addresses the root cause, keeps the publish pipeline intact for Central releases, and newer plugin versions also bring AGP 8.x compatibility improvements.