RFR: 4926314: Optimize Reader.read(CharBuffer) [v7]

[Philippe Marschall]

On Fri, 19 Feb 2021 07:34:57 GMT, Alan Bateman <alanb at openjdk.org> wrote:

>> I think that's what @AlanBateman intended. The `skip()` changes would revert also (I think) but the C-style array changes can stay. Thanks.
>
> Yes, let's bring it back to just eliminating the intermediate array when the buffer has a backing array. The other case that been examined separated if needed but we can't use the approach proposed in the current PR because it changes the semantics of read when there is a short-read followed by a blocking or exception throwing read.

Done

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PR: https://git.openjdk.java.net/jdk/pull/1915