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README-QUARKUS.md

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playing-quarkus

This project uses Quarkus, the Supersonic Subatomic Java Framework.

If you want to learn more about Quarkus, please visit its website: https://quarkus.io/ .

upgrade to the newer Quarkus-Version

from version 1.4.2.Final to 1.11.0.Final

  1. edit the cradle.properties and replace:

    quarkusPluginVersion=1.4.2.Final
quarkusPlatformVersion=1.4.2.Final

  2. Install corresponding GraalVM 20.3.0 in the Community-Version. I tried 20.3.1 ... https://github.com/graalvm/graalvm-ce-builds/releases ... please update the Environment variable to the new version export GRAALVM_HOME=/Users/wagnerol/bin/SDKs/graalVM/current/Contents/Home - for example at .bashrc.

Thats all. Now you can use the commands to build the Quarkus-Server.

Running the application in dev mode

You can run your application in dev mode that enables live coding using:

./gradlew quarkusDev

Packaging and running the application

The application can be packaged using ./gradlew quarkusBuild. It produces the quarkus01hello-0.0.1-SNAPSHOT-runner.jar file in the build directory. Be aware that it’s not an über-jar as the dependencies are copied into the build/lib directory.

The application is now runnable using java -jar build/quarkus01hello-0.0.1-SNAPSHOT-runner.jar.

If you want to build an über-jar, just add the --uber-jar option to the command line:

./gradlew quarkusBuild --uber-jar

Creating a native executable

After extracting the tar.gz - After doing this you have to export the variable export GRAALVM_HOME=/Users/wagnerol/bin/SDKs/graalVM/current/Contents/Home (for example at .zshrc). Now go to ${GRAALVM_HOME}/Contents/Home/bin and execute ./gu install native-image (install the GraalVM with Native-Image support).

You can create a native executable using: ./gradlew quarkusBuild -Dquarkus.package.type=native.

Or, if you don't have GraalVM installed, you can run the native executable build in a container using: ./gradlew build -Dquarkus.package.type=native -Dquarkus.native.container-build=true.

You can then execute your native executable with: ./build/quarkus01hello-0.0.1-SNAPSHOT-runner

If you want to learn more about building native executables, please consult https://quarkus.io/guides/gradle-tooling#building-a-native-executable.