thetumbled commented on PR #18390:
URL: https://github.com/apache/pulsar/pull/18390#issuecomment-1310320076
> > the local variable table will not be updated.
>
> @thetumbled It's not true. `table` variable is a reference not a copy, so
its length may change.
In the `rehash` method, the member `this.table` of `Section` will be
reallocated a new long[] array, which is different from old table member.
For example:
```
public static void main(String[] args) {
int[] table = new int[]{1, 2};
int[] localTable = table;
System.out.println(localTable.length);
// rehash table to new array.
table = new int[]{3};
System.out.println(localTable.length);
}
```
the result will be following:
<img width="104" alt="image"
src="https://user-images.githubusercontent.com/52550727/201110781-e6f6af4e-7196-45db-89c3-0a998f007091.png";>
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