Before you start make sure you’ve completed the Development Setup and executed at least one successful build using .\gradlew build.
Start your Eclipse workspace and install the Buildship plugin:
https://github.com/eclipse/buildship/blob/master/docs/user/Installation.md
In Eclipse select File -> Import -> Gradle -> Gradle Project and click Next. Change the Project root directory to the O2Xfs repository on your file system and click Finish. You can safely remove the parent project O2Xfs from eclipse, since it duplicates the locations where files are found.
Before you run JUnit tests ensure your JavaSE-1.8 execution environment points to a x86 runtime. In Eclipse open Preferences with Window -> Preferences. In the tree navigate to Java -> Installed JREs and ensure the JRE location points to a x86 version, otherwise Add... a new JRE. In the Execution Environtments node you can specify the JRE to be used by JavaSE-1.8.