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There is one simple case of lock-free list management with the Java Monitor subsystem so we'll start with that code as a way to introduce the lock-free concepts:

  L1: while (true) {
 L2: PaddedObjectMonitor* cur = OrderAccess::load_acquire(&g_block_list);
 L3: OrderAccess::release_store(&new_blk[0]._next_om, cur);
 L4: if (Atomic::cmpxchg(new_blk, &g_block_list, cur) == cur) {
 L5: Atomic::add(_BLOCKSIZE - 1, &g_om_population);
 L6: break;
 L7: }
 L8: }

What the above block of code does is:

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