Proposal: Fully Concurrent ClassLoading
David Holmes
david.holmes at oracle.com
Wed Dec 5 11:59:22 UTC 2012
Java 7 introduced support for parallel classloading by adding to each
class loader a ConcurrentHashMap, referenced through a new field,
parallelLockMap. This contains a mapping from class names to Objects to
use as a classloading lock for that class name. This scheme has a number
of inefficiencies. To address this we propose for Java 8 the notion of a
fully concurrent classloader ...
This is a fairly simple proposal that I've written up as a blog entry:
https://blogs.oracle.com/dholmes/entry/parallel_classloading_revisited_fully_concurrent
Please discuss this proposal here.
Thanks,
David Holmes
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