GraalVM & Kotlin native-image sample

Prerequisites

• GraalVM needs to be installed and on $PATH

Building

./mvnw package

Running

target/graalvm-kotlin-native-image-sample-1.0.0

will print

Hello, world

Startup time

time target/graalvm-kotlin-native-image-sample-1.0.0
Hello, world
target/graalvm-kotlin-native-image-sample-1.0.0  0.00s user 0.00s system 83% cpu 0.003 total

vs

time java -jar target/graalvm-kotlin-native-image-sample-1.0.0.jar
Hello, world
java -jar target/graalvm-kotlin-native-image-sample-1.0.0.jar  0.08s user 0.01s system 106% cpu 0.082 total

Binary size

du -h target/graalvm-kotlin-native-image-sample-1.0.0
3.4M	target/graalvm-kotlin-native-image-sample-1.0.0