Problems to compile project in Eclipse

[oscarvarto]

I am following instructions from https://github.com/eclipse-jdtls/eclipse.jdt.ls/blob/master/CONTRIBUTING.md#b-setting-up-the-jdt-language-server-in-eclipse
but I'm getting errors like:

Conflicting lifecycle mapping metadata (project packaging type="eclipse-plugin"): Mapping defined in 'org.eclipse.m2e.pde.connector_2.1.500.20231119-0901 [305]' and 'org.sonatype.tycho.m2e_0.10.0.20220926-1324 [574]'. To enable full functionality, remove the conflicting mapping and run Maven->Update Project Configuration.

I'm struggling with Eclipse, are there any instructions to be able to compile and code with IntelliJ instead?

[snjeza]

@oscarvarto Could you try to uninstall Tycho Project Configurators using Help>About>Installation Details?
m2e >=2.0 includes m2e-tycho.

[oscarvarto]

@snjeza That worked thank you very much! Some other way that had worked for me (some moments ago) was by using JDK 17 instead of JDK 21. But with your solution, JDK 21 compiles fine.

[oscarvarto]

I also got success with Doom Emacs. The only one that I haven't been able to make it work is IntelliJ