Using an IDE to work on the Java library

[Martin Buchholz]

I remember back in the '80s the tool vendors were making fun of us folk who
used "grep" as their code understanding tool.  Now 30 years later, I still
live in Emacs with recursive grep being my main way of navigating the
sources.  It's tough because openjdk's java sources may be ahead of IDE
language support, and the sources also come with lots of hard-to-grok C++
and Makefiles.