A guarantee failure with CMSClassUnloadingMaxInterval

[Hiroshi Yamauchi]

Hi Ramki,

> I can't recall the history behind the flag for class unloading every N Concurrent collections, but your analysis appears spot on to me. I can review the code tomorrow morning and confirm since its been a while since I looked at this code...

I suppose that it's not a flag that's commonly used. It'd be great if
you can take a look.

Thanks.