ZOOKEEPER-4032: Use Map.computeIfAbsent instead of if Map.get is null then put value
#1561
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…ull then put value`
maoling
approved these changes
Dec 22, 2020
| // rehash when the 4th entry is added, doubling size thereafter | ||
| // seems like a good compromise | ||
| list = new HashSet<>(4); | ||
| watchTable.put(path, list); |
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We should still retain these annotations? others lgtm
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Maybe It's not necessary
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