RFR: 8323670: A few client tests intermittently throw ConcurrentModificationException

[Tejesh R]

On Wed, 24 Jan 2024 19:01:09 GMT, Alexey Ivanov <aivanov 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)`?

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PR Review Comment: https://git.openjdk.org/jdk/pull/17462#discussion_r1465829427