Hi Raphael, I am using Eclipse IDE 2018‑12 .
> Once installed the Maven Eclipse plugin, you can safely ignore these Maven features. I was ignoring them, but the code won't compile, so I cannot run it. > About old libraries, can you be more precise? I am mostly talking about the core platform: Spring 3. Spring 4 is available since December 2013 and Spring 5 since September 2017 . Also using mostly the Spring XML configuration instead of the Java @Configuration annotations. This project is the first one I saw using OpenJPA and I saw that Spring 4 and 5 dropped its support since the industry leaders are Hibernate and EclipseLink, so the upgrade might be chaotic, but if JPA was used correctly, it should be easy to switch to Hibername or EclipseLink. Are you planning on changing the JPA provider?
