What's wrong with Eclipse? It give me errors without any actual error. I do restart everything works.
Sometimes I have to clean the project to remove errors.
Or am I doing something wrong?

Previously I have worked only in vim because my projects were small. I am not feeling good with Eclipse.

Eclipse works best if you start IntelliJ instead.

@chch good one

Seriously consider moving to another IDE, it is up to you in the end but it is out of practice, I had so many bad times with Eclipse though I only used it for Android but then came Android Studio and I felt like I went to heaven, except you better have too much ram or you are screwed. Eclipse had less memory consumption for me

Eclipse is what's wrong with eclipse

Lifehack:

1. Put an actuall error like removing a bracket
2. Remove the error again
3. Done. Fixed

Had this all the time in my starting days with java when I was developing minecraft plugins with eclipse haha