Fix analytics ServiceConfigurationError on IDEs that bundle their own ktor (2025.2+/2026.1)#174
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Pushpavel merged 1 commit intoJul 12, 2026
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On 2025.2+ IDEs (RustRover, CLion 2026.1, ...) the platform ships its own ktor in lib/ (intellij.libraries.ktor.client.cio.jar). Creating the analytics HttpClient without naming an engine makes ktor discover one through java.util.ServiceLoader, and the plugin classloader's resource lookup also sees the platform's service file: it then tries to load the platform's CIOEngineContainer, which implements the platform copy of HttpClientEngineContainer rather than the one bundled with the plugin, and client construction dies with java.util.ServiceConfigurationError: io.ktor.client.HttpClientEngineContainer: io.ktor.client.engine.cio.CIOEngineContainer not a subtype Since GoogleAnalytics fires from the problem-gathering message bus listener, every gathered batch popped an IDE internal error on those IDEs. Name the bundled Java engine explicitly — HttpClient(Java) — so no service discovery happens at all. Also create the client lazily and wrap the send in runCatching: analytics is best-effort and must never surface an IDE error, whatever else goes wrong.
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Pushpavel
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Jul 12, 2026
…wser extension - feat: submit support via companion browser extension (#172) - fix: no longer crowd out native run configurations (#173) - fix: analytics ServiceConfigurationError on 2025.2+ IDEs bundling ktor (#174) - fix: endless loading of Project settings page with no project open (#175) Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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Motivation
On recent IDEs (2025.2+ — observed on RustRover and CLion 2026.1.4) every gathered problem batch pops an IDE internal error from AutoCp:
java.util.ServiceConfigurationError: io.ktor.client.HttpClientEngineContainer: io.ktor.client.engine.cio.CIOEngineContainer not a subtype(full stack trace)Root cause
Those IDE builds ship their own ktor in the platform classpath (
lib/intellij.libraries.ktor.client.cio.jaretc).GoogleAnalyticscreates its client asHttpClient { ... }with no engine named, so ktor falls back to engine auto-discovery viajava.util.ServiceLoader. The plugin classloader's resource lookup also sees the platform'sMETA-INF/services/io.ktor.client.HttpClientEngineContainer, and loading theCIOEngineContainerit names yields a class that implements the platform copy ofHttpClientEngineContainer— not the one from the ktor 2.1.2 the plugin bundles.ServiceLoaderiteration then throwsnot a subtype, client construction fails, and since it happens inside the problem-gathering message-bus listener the exception surfaces as an IDE internal error. Older IDEs don't bundle ktor, which is why this never showed up before.Fix
HttpClient(Java) { ... }(ktor-client-javais already a dependency) — so no service discovery happens at all.runCatching. Analytics is best-effort; whatever else goes wrong in it should never pop an IDE error over the user's workflow.Testing
compileKotlinpasses.HttpClient(Java)takes the explicit-factory constructor path, which never touchesServiceLoader(HttpClientJvm.kt's engine list is only consulted by the no-arg overload), so the failing lookup in the trace above is no longer reachable.