Add wasm-spring-shell demo.

.github/workflows/native-image-wasm-spring-shell.yml

@@ -0,0 +1,43 @@
+name: native-image/wasm-spring-shell
+on:
+  push:
+    paths:
+      - 'native-image/wasm-spring-shell/**'
+      - '.github/workflows/native-image-wasm-spring-shell.yml'
+  pull_request:
+    paths:
+      - 'native-image/wasm-spring-shell/**'
+      - '.github/workflows/native-image-wasm-spring-shell.yml'
+  schedule:
+    - cron: "0 0 1 * *" # run every month
+  workflow_dispatch:
+permissions:
+  contents: read
+jobs:
+  run:
+    name: Run 'native-image/wasm-spring-shell'
+    runs-on: ubuntu-latest
+    timeout-minutes: 15
+    steps:
+      - uses: actions/checkout@v4
+      - name: Download GraalVM 25.1 EA builds
+        run: curl -sL -o $RUNNER_TEMP/graalvm-jdk-25e1-linux-amd64.tar.gz https://github.com/graalvm/oracle-graalvm-ea-builds/releases/download/jdk-25e1-25.0.0-ea.01/graalvm-jdk-25e1-25.0.0-ea.01_linux-x64_bin.tar.gz
+      - uses: actions/setup-java@v4
+        with:
+          java-version: '25'
+          distribution: 'jdkfile'
+          jdkFile: ${{ runner.temp }}/graalvm-jdk-25e1-linux-amd64.tar.gz
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 22
+      - name: Set up Binaryen
+        run: |
+          curl -sLO https://github.com/WebAssembly/binaryen/releases/download/version_122/binaryen-version_122-x86_64-linux.tar.gz
+          tar xzf binaryen-version_122-x86_64-linux.tar.gz
+          echo "$(pwd)/binaryen-version_122/bin" >> "$GITHUB_PATH"
+      - name: Run 'native-image/wasm-spring-shell'
+        run: |
+          cd native-image/wasm-spring-shell
+          ./mvnw --no-transfer-progress -Pnative native:compile
+          node target/wasm-spring-shell help
+          node target/wasm-spring-shell hello Jane

native-image/wasm-spring-shell/.gitattributes

@@ -0,0 +1,2 @@
+/mvnw text eol=lf
+*.cmd text eol=crlf

native-image/wasm-spring-shell/.gitignore

@@ -0,0 +1,33 @@
+HELP.md
+target/
+.mvn/wrapper/maven-wrapper.jar
+!**/src/main/**/target/
+!**/src/test/**/target/
+
+### STS ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+
+### IntelliJ IDEA ###
+.idea
+*.iws
+*.iml
+*.ipr
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+build/
+!**/src/main/**/build/
+!**/src/test/**/build/
+
+### VS Code ###
+.vscode/

native-image/wasm-spring-shell/.mvn/wrapper/maven-wrapper.properties

@@ -0,0 +1,3 @@
+wrapperVersion=3.3.4
+distributionType=only-script
+distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.9.11/apache-maven-3.9.11-bin.zip

native-image/wasm-spring-shell/README.md

@@ -0,0 +1,27 @@
+# Compile Spring Shell into a Wasm Module
+
+This demo illustrates how to use GraalVM Web Image to compile a Spring Shell application into a Wasm module that can then run on the command-line or in the browser. [Check out the live demo here](https://graalvm.github.io/graalvm-demos/native-image/wasm-spring-shell/).
+
+## Prerequisites
+
+This demo requires:
+
+1. This [Early Access Build](https://github.com/graalvm/oracle-graalvm-ea-builds/releases/tag/jdk-25e1-25.0.0-ea.01) of Oracle GraalVM 25.1 or later.
+2. The [Binaryen toolchain](https://github.com/WebAssembly/binaryen) in version 119 or later and on the system path.
+    For example, using Homebrew: `brew install binaryen`
+
+## Run Spring Shell on Node
+
+1. Build the Wasm module with the `native` profile:
+    ```bash
+    $ ./mvnw -Pnative package
+    ```
+    The demo uses the [Native Build Tools](https://graalvm.github.io/native-build-tools/latest/index.html) for building native images with GraalVM and Maven.
+    This command generates a Wasm file and a corresponding JavaScript binding in the `target` directory.
+
+2. Run the Wasm module on Node:
+    ```bash
+    node target/wasm-spring-shell help
+    node target/wasm-spring-shell hello Jane
+    ```
+    This requires Node.js 22 or later.