RFR: 8323670: A few client tests intermittently throw ConcurrentModificationException

[Alexey Ivanov]

On Thu, 25 Jan 2024 04:33:25 GMT, Tejesh R <tr at openjdk.org> wrote:

> > Even if you'll go this route, I'm for replacing `Vector` with `ArrayList` for the `newFileCache` and `newFiles` variables. These are local variables, they're not accessed concurrently. Yet they're accessed from two threads: the current one and the one where `ShellFolder.invoke` runs, so there could be a need to use another synchronisation technique to ensure thread-safety between these two threads.
> 
> Another Synchronization technique even after `synchronized (fileCache)`?

Yes, even after.

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PR Review Comment: https://git.openjdk.org/jdk/pull/17462#discussion_r1466117839