Scala Graalvm

Pekko-Http server built and deployed to JDK 21 GraalVM using Scala 3.

Install

GraalVM Getting Started

Install:

1. tar -xzf graalvm-jdk-21_macos-aarch64_bin
2. sudo mv graalvm-jdk-21+35.1 /Library/Java/JavaVirtualMachines
3. sudo xattr -r -d com.apple.quarantine /Library/Java/JavaVirtualMachines/graalvm-jdk-21+35.1

Step 3 fixes this error: graalvm-jdk-21+35.1 is damanged and can't be opened.

Test

1. sbt clean test

Run

1. sbt run
2. curl http://localhost:7979/now

Package

Takes around 60 seconds. Note: Only 1 main class is allowed in an sbt-native-packager project.

1. sbt 'show graalvm-native-image:packageBin'

Execute

1. ./target/graalvm-native-image/scala.graalvm
2. curl http://localhost:7979/now

Resources

• GraalVM
• Sbt Packager