I'm not sure I would agree. "Effective Java" is a great Java book and absolutely recommended reading to know more Java. However, many of the tips provided are meant to address Java-specific foibles -- most, if not all, are addressed by using Clojure in the first place.
You are probably right. I guess the OP is trying to learn more about the Java ecosystem, rather than simply the language per se. In that sense, your comment about Maven and Classpath is most likely spot on.
It's not for beginner Java programmers, but if you have experience in other similar programming languages you may get away with it.