RFR: 8286735: (fc) FileChannel#map should document behavior when using custom file systems

[Brian Burkhalter]

On Tue, 17 May 2022 01:12:55 GMT, Brian Burkhalter <bpb at openjdk.org> wrote:

> Clarify when the `map()` methods of `java.nio.channels.FileChannel` throw an `UnsupportedOperationException`.

Perhaps the submitter of this issue (@uschindler) could clarify the intent and modify or split this issue as needed?

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PR: https://git.openjdk.java.net/jdk/pull/8739