RFR: 8323670: A few client tests intermittently throw ConcurrentModificationException

[Tejesh R]

On Mon, 22 Jan 2024 07:11:08 GMT, Andrey Turbanov <aturbanov at openjdk.org> wrote:

>> Since concurrent modification exception is thrown, it is clear that the List is being modified while comparing two list. Hence instead of copying the list locally, I have used iterators and comparing element by element in a `synchronized` method which ensures single thread is accessing the iterators. Without `synchronized` I guess it would again cause `concurrentModificationException`.
>
> Vector.iterator and Vector.subList.iterator are still check for modification on iteration (see usages of the method `java.util.AbstractList.SubList#checkForComodification`). It means, if vector was concurrently modified during iteration - iteration will fail with the `ConcurrentModificationException`

Yes, which is why I am using Synchronized to handle `concurrentModificationException`.

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PR Review Comment: https://git.openjdk.org/jdk/pull/17462#discussion_r1461440337