Simple example of starting a process in Java 17

.dockerignore

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+# Local build
+**/out/
+
+# Git
+/.git/
+.gitignore
+
+# IntelliJ
+/.idea/
+
+# macOS
+**/.DS_Store
+
+# GitHub
+/.github/
+
+# Docker
+Dockerfile
+.dockerignore

.github/workflows/build.yml

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+name: Multi Arch Docker Build
+
+on:
+  push:
+
+env:
+  DOCKER_BUILDKIT: 1
+  BUILDKIT_PROGRESS: plain
+  PROGRESS_NO_TRUNC: 1
+
+jobs:
+  build:
+    runs-on: ubuntu-20.04
+
+    steps:
+      - uses: actions/checkout@v2
+
+      # Allow us to build multi-arch images
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@master
+        with:
+          platforms: all
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@master
+
+      - name: Do the build
+        run: docker buildx build --platform linux/arm64/v8,linux/amd64 .

Dockerfile

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+# syntax=docker/dockerfile:1.3.0-labs
+FROM eclipse-temurin:17.0.2_8-jdk-focal as builder
+
+COPY ProcessUser.java .
+RUN javac ProcessUser.java
+RUN java ProcessUser > /tmp/output.txt
+
+FROM scratch
+COPY --from=builder /tmp/output.txt .

ProcessUser.java

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+import java.io.IOException;
+
+public class ProcessUser {
+    public static void main(String[] args) throws IOException, InterruptedException {
+        new ProcessBuilder("uname", "-a")
+                .inheritIO()
+                .start()
+                .waitFor();
+    }
+}