Documentation about Maven central packages

[mahesh-hegde]

I (and guess many other people) use maven for most projects.

I found these on Maven central but cannot determine if they're officially endorsed:

https://central.sonatype.com/artifact/org.eclipse.jdt/org.eclipse.jdt.core/3.34.0
https://central.sonatype.com/artifact/org.eclipse.jdt/ecj/3.34.0

Also what's the difference between ECJ and JDT core? Which should I use if my purpose is just parsing Java code outside of Eclipse, from a standalone tool?

Thanks for any pointers.