private FastMap newLocalMap() {
// First, do some cleanup (remove dead threads).
for (FastMap.Entry e = THREAD_TO_LOCAL_MAP.head(), end = THREAD_TO_LOCAL_MAP.tail();
(e = (FastMap.Entry) e.getNext()) != end; ) {
Thread thread = (Thread) e.getKey();
if (!thread.isAlive()) {
THREAD_TO_LOCAL_MAP.remove(thread);
}
}
FastMap localMap = new FastMap();
THREAD_TO_LOCAL_MAP.put(Thread.currentThread(), localMap);
return localMap;
}
