Major Description
The ECJ compiler is an advanced Java compiler that works on top of javac.
It brings a lot of functionality built-in:
-better error report (better indentation of the message)
-better warnings (warnings for source code target VM for example, type casting)
-more errors reported: the compiler doesn't stop after 100 errors, it will bring all the errors and warnings reported.
The compiler passes all the javac specs. I added an attempt to check the output generated, but since it is made from Java, I can't control it as of now (see my post on the users mailing list for an idea on how to help with it).