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dae3476f7dBumps `kotlin` from 2.4.0 to 2.4.10. Updates `org.jetbrains.kotlin.jvm` from 2.4.0 to 2.4.10 <details> <summary>Release notes</summary> <p><em>Sourced from <a href="https://github.com/JetBrains/kotlin/releases">org.jetbrains.kotlin.jvm's releases</a>.</em></p> <blockquote> <h2>Kotlin 2.4.10</h2> <h2>Changelog</h2> <h3>Backend. Wasm</h3> <ul> <li><a href="https://youtrack.jetbrains.com/issue/KT-87066"><code>KT-87066</code></a> K/Wasm: Not all files are presented in compiler output directory with multimodule-closed-world and incremental compilation</li> </ul> <h3>Compiler</h3> <ul> <li><a href="https://youtrack.jetbrains.com/issue/KT-86939"><code>KT-86939</code></a> JVM: IllegalStateException "No value for annotation parameter" when using const val in nested Java annotation array argument</li> <li><a href="https://youtrack.jetbrains.com/issue/KT-83766"><code>KT-83766</code></a> K2: Wrong sourcePsi is set for <code>SymbolPsiLiteral</code> in SLC for annotation arguments referencing a const val</li> <li><a href="https://youtrack.jetbrains.com/issue/KT-86728"><code>KT-86728</code></a> Reified type inference: expected type not propagated into inline call inside lambda with elvis operator</li> </ul> <h3>Compose Compiler</h3> <ul> <li><a href="https://issuetracker.google.com/issues/522127447"><code>b/522127447</code></a> Compose Compiler 2.4: classes previously inferred <code>stable</code> now reported <code>runtime</code>/<code>Uncertain</code></li> </ul> <h3>Klibs</h3> <ul> <li><a href="https://youtrack.jetbrains.com/issue/KT-86501"><code>KT-86501</code></a> Native: IrTypeAliasSymbolImpl is already bound. Signature: kotlinx.datetime/Instant|null[0] on iosSimulatorArm64</li> </ul> <h3>Tools. CLI</h3> <ul> <li><a href="https://youtrack.jetbrains.com/issue/KT-86930"><code>KT-86930</code></a> Introduce <code>kotlinr</code> in the Kotlin distribution</li> </ul> <h3>Tools. Gradle. BCV</h3> <ul> <li><a href="https://youtrack.jetbrains.com/issue/KT-87223"><code>KT-87223</code></a> Gradle, BCV: open version range in kotlinAbiValidationCompatClasspath causes kotlin-build-tools-impl to resolve to 2.4.20-Beta1 instead of 2.4.0</li> </ul> <h3>Tools. Gradle. JS</h3> <ul> <li><a href="https://youtrack.jetbrains.com/issue/KT-87304"><code>KT-87304</code></a> jsBrowserTest fails with "exited with errors (exit code: 1)"</li> <li><a href="https://youtrack.jetbrains.com/issue/KT-86057"><code>KT-86057</code></a> kotlinUpgradeYarnLock skips lock file regeneration when kotlinNpmInstall is up-to-date, causing kotlinStoreYarnLock to fail</li> </ul> <h3>Tools. Gradle. Multiplatform</h3> <ul> <li><a href="https://youtrack.jetbrains.com/issue/KT-87084"><code>KT-87084</code></a> False positive warning for JS and Wasm compilations when CRI is enabled</li> </ul> <h3>Tools. Scripts</h3> <ul> <li><a href="https://youtrack.jetbrains.com/issue/KT-87076"><code>KT-87076</code></a> <code>@file</code>:CompilerOptions("-jvm-target", ...) ignored in .main.kts scripts in Kotlin 2.4.0, falling back to JVM target 1.8</li> <li><a href="https://youtrack.jetbrains.com/issue/KT-86352"><code>KT-86352</code></a> K2 scripting: FirResolvedTypeRef exception when resolving extension functions from imported scripts</li> </ul> <h2>Kotlin 2.4.10-RC2</h2> <h2>Changelog</h2> <h3>Backend. Wasm</h3> <ul> <li><a href="https://youtrack.jetbrains.com/issue/KT-87066"><code>KT-87066</code></a> K/Wasm: Not all files are presented in compiler output directory with multimodule-closed-world and incremental compilation</li> </ul> <!-- raw HTML omitted --> </blockquote> <p>... (truncated)</p> </details> <details> <summary>Changelog</summary> <p><em>Sourced from <a href="https://github.com/JetBrains/kotlin/blob/master/ChangeLog.md">org.jetbrains.kotlin.jvm's changelog</a>.</em></p> <blockquote> <h2>2.4.10</h2> <h3>Backend. Wasm</h3> <ul> <li><a href="https://youtrack.jetbrains.com/issue/KT-87066"><code>KT-87066</code></a> K/Wasm: Not all files are presented in compiler output directory with multimodule-closed-world and incremental compilation</li> </ul> <h3>Compiler</h3> <ul> <li><a href="https://youtrack.jetbrains.com/issue/KT-86939"><code>KT-86939</code></a> JVM: IllegalStateException "No value for annotation parameter" when using const val in nested Java annotation array argument</li> <li><a href="https://youtrack.jetbrains.com/issue/KT-83766"><code>KT-83766</code></a> K2: Wrong sourcePsi is set for <code>SymbolPsiLiteral</code> in SLC for annotation arguments referencing a const val</li> <li><a href="https://youtrack.jetbrains.com/issue/KT-86728"><code>KT-86728</code></a> Reified type inference: expected type not propagated into inline call inside lambda with elvis operator</li> </ul> <h3>Compose Compiler</h3> <ul> <li><a href="https://issuetracker.google.com/issues/522127447"><code>b/522127447</code></a> Compose Compiler 2.4: classes previously inferred <code>stable</code> now reported <code>runtime</code>/<code>Uncertain</code></li> </ul> <h3>Klibs</h3> <ul> <li><a href="https://youtrack.jetbrains.com/issue/KT-86501"><code>KT-86501</code></a> Native: IrTypeAliasSymbolImpl is already bound. Signature: kotlinx.datetime/Instant|null[0] on iosSimulatorArm64</li> </ul> <h3>Tools. CLI</h3> <ul> <li><a href="https://youtrack.jetbrains.com/issue/KT-86930"><code>KT-86930</code></a> Introduce <code>kotlinr</code> in the Kotlin distribution</li> </ul> <h3>Tools. Gradle. BCV</h3> <ul> <li><a href="https://youtrack.jetbrains.com/issue/KT-87223"><code>KT-87223</code></a> Gradle, BCV: open version range in kotlinAbiValidationCompatClasspath causes kotlin-build-tools-impl to resolve to 2.4.20-Beta1 instead of 2.4.0</li> </ul> <h3>Tools. Gradle. JS</h3> <ul> <li><a href="https://youtrack.jetbrains.com/issue/KT-87304"><code>KT-87304</code></a> jsBrowserTest fails with "exited with errors (exit code: 1)"</li> <li><a href="https://youtrack.jetbrains.com/issue/KT-86057"><code>KT-86057</code></a> kotlinUpgradeYarnLock skips lock file regeneration when kotlinNpmInstall is up-to-date, causing kotlinStoreYarnLock to fail</li> </ul> <h3>Tools. Gradle. Multiplatform</h3> <ul> <li><a href="https://youtrack.jetbrains.com/issue/KT-87084"><code>KT-87084</code></a> False positive warning for JS and Wasm compilations when CRI is enabled</li> </ul> <h3>Tools. Scripts</h3> <ul> <li><a href="https://youtrack.jetbrains.com/issue/KT-87076"><code>KT-87076</code></a> <code>@file</code>:CompilerOptions("-jvm-target", ...) ignored in .main.kts scripts in Kotlin 2.4.0, falling back to JVM target 1.8</li> <li><a href="https://youtrack.jetbrains.com/issue/KT-86352"><code>KT-86352</code></a> K2 scripting: FirResolvedTypeRef exception when resolving extension functions from imported scripts</li> </ul> </blockquote> </details> <details> <summary>Commits</summary> <ul> <li><a href=" |
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| .. | ||
| gradle | ||
| src | ||
| build.gradle.kts | ||
| gradle.properties | ||
| gradlew | ||
| gradlew.bat | ||
| README.md | ||
| settings.gradle.kts | ||
Weather STDIO Server
A minimal MCP server that exposes weather forecast and alert tools using the National Weather Service API over STDIO transport.
Overview
This sample shows how to build a STDIO-based MCP server in Kotlin. It registers two tools that query the weather.gov API — one for weather forecasts by latitude/longitude and one for active alerts by US state. Because it uses STDIO, the server is launched as a subprocess by an MCP client or a desktop application like Claude Desktop.
Prerequisites
- JDK 17+
- Internet access (the server calls the weather.gov API at runtime)
Build & Run
Run the server (it communicates via stdin/stdout):
./gradlew run
MCP Inspector
Build the fat JAR first, then connect with the MCP Inspector:
./gradlew build
npx @modelcontextprotocol/inspector -- java -jar samples/weather-stdio-server/build/libs/weather-stdio-server-0.1.0-all.jar
Claude Desktop integration
Add the following to your Claude Desktop configuration:
{
"mcpServers": {
"weather": {
"command": "java",
"args": [
"-jar",
"/absolute/path/to/samples/weather-stdio-server/build/libs/weather-stdio-server-0.1.0-all.jar"
]
}
}
}
MCP Capabilities
Tools
| Name | Description |
|---|---|
get_alerts |
Returns active weather alerts for a two-letter US state code (e.g. CA, NY). |
get_forecast |
Returns weather forecast for a given latitude / longitude using the weather.gov API. |