Quarkus GraalVM. Supersonic Subatomic Java, Kotlin & Scala

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Due to the actual microservices server paradigm & server costs corresponding to resource’s consumption, Quarkus is a framework that caught my attention some years ago, as it solves JVM language problems on these concerns. In this article you will find Quarkus GraalVM examples and explanation. We are going to create a basic Quarkus REST-API application & create a native image with GraalVM.  Also we’ll mention some existing alternatives to Quarkus.

Quarkus GraalVM

The generated Quarkus project for this article can be found in our GitHub repository.


GraalVM is a universal virtual machine for running applications written in JavaScript, Python, Ruby, R, JVM-based languages like Java, Scala, Groovy, Kotlin, Clojure, and LLVM-based languages such as C and C++.

Quarkus project

This framework is designed to:

  • minimize the size of the generated jar files.
  • lower memory usage.
  • fastest application startup.
Screenshot 2021 05 28 at 13.40.51

Some metrics from the official site:

Screenshot 2021 05 28 at 13.41.44

All these improvements can be…


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