Yes, I thought about this breaking MMTk too. BTW, I don't know if Jikes does class unloading, but they may get automatic unloading almost for free since it is all java?
I am not very knowledgeable regarding other methods, but I think you can always count manually to figure out when the loader instance becomes unreachable. That would be like Aleksey's method 1, which is quite invasive. Thanks, Rana
On 10/26/06, Weldon Washburn <[EMAIL PROTECTED]> wrote: > > Steve Blackburn was in Portland Oregon today. I mentioned the idea of > adding a reference pointer from object to its j.l.Class instance. MMTk > was > not designed with this idea in mind. It looks like you will need to fix > this part of MMTk and maintain it yourself. Steve did not seem thrilled > at > adding this support to MMTk code base. > > Have we looked at other class unloading designs? From what I have read > in > open literature on object layout, I don't recall any special fields to > support class unloading. > >
