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Chapter 1. Prerequisites to get started

This guide covers concepts as well as practical details needed by developers to use the Eclipse Vert.x runtime.

As an application developer, you can use Eclipse Vert.x to create microservices-based applications written in Java that run in OpenShift environments.

This guide shows you how to create, package, run and test a simple Eclipse Vert.x project.


  • OpenJDK 8 or OpenJDK 11 is installed and the JAVA_HOME environment variable specifies the location of the Java SDK. Log in to the Red Hat Customer Portal to download Red Hat build of Open JDK from the Software Downloads.
  • Apache Maven 3.6.0 or higher is installed. You can download Maven from the Apache Maven Project website.