Helidon and GraalVM: The Perfect Pairing for High-Performance Applications

Helidon and GraalVM: The Perfect Pairing for High-Performance Applications

Are you looking for a powerful combination to boost your Java microservices’ performance and accelerate your cloud-native development? Look no further than Helidon and GraalVM! These two cutting-edge technologies are the perfect pairing for high-performance applications, providing JVM optimization, native image generation, containerization, and more. In this blog post, we will explore what Helidon and GraalVM are, why they work so well together, how to get started with them, and their benefits for building modern microservices architecture. Let’s dive in!

What is Helidon?

Helidon is a lightweight and modern Java microservices framework that provides developers with a fast, scalable, and flexible platform for building cloud-native applications. It was launched in 2018 by the Oracle Corporation as an open-source project under the Apache License 2.0.

Helidon comes in two flavors: Helidon MP (MicroProfile) and Helidon SE (Simple Edition). The former is built on top of Eclipse MicroProfile and provides a set of APIs to develop portable microservices across multiple runtime environments like Kubernetes, Docker, or Cloud Foundry. On the other hand, Helidon SE is designed for building simple HTTP/REST services with minimal overhead.

One of the key features of Helidon is its support for reactive programming using popular frameworks like RxJava or Reactor. This allows developers to write non-blocking code that can handle large volumes of traffic without blocking threads or causing performance issues.

Moreover, Helidon includes several tools such as Maven archetypes, CLI commands, Swagger integration and more to simplify development tasks like testing or documentation generation. With its lightweight nature and ease-of-use approach,HelidoN enables developers to create high-performance applications quickly while still providing flexibility over their application architecture.

What is GraalVM?

GraalVM is a high-performance virtual machine that supports multiple languages, including Java, JavaScript, Ruby, R and Python. It was developed by Oracle Labs and is designed to run applications faster than traditional JVMs.

One of the key features of GraalVM is its ability to generate native images that can be executed directly on the operating system without the need for a separate runtime. This makes it ideal for containerized environments where fast startup times and low memory usage are important.

Another advantage of GraalVM is its support for just-in-time (JIT) compilation, which optimizes code at runtime to improve performance. This can result in significant speedups compared to traditional JVMs.

GraalVM also includes a number of tools for profiling and optimizing Java applications. These tools help developers identify performance bottlenecks and optimize their code for maximum efficiency.

GraalVM offers an impressive set of features for optimizing Java applications and supporting multiple programming languages. Its unique capabilities make it an attractive option for developers looking to build high-performance applications with minimal overhead.

Why Use Helidon and GraalVM Together?

Helidon and GraalVM are two powerful tools that can be used together to optimize the performance of high-performance applications. Helidon is a lightweight Java framework designed for building microservices-based applications, while GraalVM is a high-performance virtual machine for running Java code.

One of the main reasons to use Helidon and GraalVM together is their ability to provide JVM optimization. By optimizing the JVM, developers can accelerate their Java application’s performance without sacrificing memory usage or stability.

Another key benefit of using Helidon and GraalVM in conjunction with one another is native image generation. The process involves compiling an application’s bytecode into a native executable file, which can run faster and consume less memory than traditional Java applications.

Containerization is also an important factor when it comes to developing cloud-native applications. With containerization support provided by both Helidon and GraalVM, developers have more flexibility in deploying their application across different environments such as Kubernetes or Docker containers.

Using Helidon and GraalVM together helps developers achieve better performance results, reduce resource consumption, improve scalability, increase development efficiency while providing the necessary tools for designing robust microservice architectures.

How to Get Started with Helidon and GraalVM

Getting started with Helidon and GraalVM is easy, especially if you have experience working with Java microservices. To begin, you’ll need to install both Helidon and GraalVM on your machine.

Once installed, you can start building your high-performance applications using the Helidon framework. This lightweight framework allows developers to build cloud-native applications that are highly scalable and optimized for performance.

To take advantage of GraalVM’s native image generation capabilities, you’ll need to compile your code into a native binary using the “native-image” command-line tool provided by GraalVM.

From there, you can deploy your application in a containerized environment such as Docker or Kubernetes for even greater scalability and flexibility.

As always when working with new technologies, it’s important to consult the documentation available online to ensure that you’re getting the most out of both Helidon and GraalVM. There are also several helpful tutorials available online that can guide you through each step of the process.

By combining these powerful tools, developers can create high-performance applications that are perfectly suited for modern cloud-based environments.


Helidon and GraalVM are the perfect pairing for building high-performance Java microservices with ease. The Helidon framework provides a lightweight and flexible platform for developing cloud-native applications while GraalVM delivers impressive performance optimizations through native image generation and JVM optimization techniques.

By using these two technologies together, developers can accelerate their Java application development process, achieve optimal performance, and create containerized microservices that run seamlessly in any environment.

If you are looking to develop high-performance cloud-native applications with Java microservices architecture, then Helidon and GraalVM should be at the top of your list. Give them a try today!