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hanbei/concurrent_hashmap_idioms

Last active August 29, 2015 13:59
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ConcurrentHashMap idioms
Raw
concurrent_hashmap_idioms
X x = map.get(key);
if (set == null) {
final X value = new X();
x = map.putIfAbsent(key, value);
if (x == null) {
x = value;
}
}
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