Adrian Crum wrote: > --- On Fri, 3/12/10, Adam Heath <doo...@brainfood.com> wrote: >> Search for synchronized in >> ShoppingCart. You'll fine a couple of >> spots that lock on cartLines, a few that lock in the class >> instance >> itself. But then no other hits. >> >> However, tons of internal variables all need to be kept >> self-consistent with each other, so locking against just >> one or the >> other of those variables won't work. > > These same problems exist in a number of classes - not just the shopping cart > (take a look at SequenceUtil for some really scary code). That's why I > suggested a synchronization best practices page that the community can follow.
I have looked at SequenceUtil, and have a version lying around that is non-blocking. I need to pull that out of the attic, and put it in my staging tree, and run with it for a while.
