JEP-149 looks at dynamic memory footprint reductions in Java 8.

http://openjdk.java.net/jeps/149

This CR covers the VM changes for the "Fully Concurrent ClassLoading" project of that JEP, which is described in this blog entry:

https://web.archive.org/web/20170105004448/https://blogs.oracle.com/dholmes/entry/parallel_classloading_revisited_fully_concurrent

and text reproduced below to record it.