dao-jun commented on PR #4317:
URL: https://github.com/apache/bookkeeper/pull/4317#issuecomment-2080276711
BTW, the key point is
```java
int capacity = this.capacity;
bucket = signSafeMod(bucket, capacity);
```
and
```java
// First try optimistic locking
long storedKey = keys[bucket];
V storedValue = values[bucket];
```
not an atomic operation.
If `rehash` triggered in an async thread *after* calculating `bucket` and
finished *before* read entry from the array, we will read incorrect value.
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