private V cancel(CacheLine<V> line) {
// FIXME: this is a race condition, the item could expire
// between the time it is replaced, and it is cancelled
V oldValue = line.getValue();
ExecutionPool.removePulse(line);
line.cancel();
return oldValue;
}
@Override
public void onEviction(Object key, CacheLine<V> value) {
ExecutionPool.removePulse(value);
}