RFR 8193832: Performance of InputStream.readAllBytes() could be improved

Brian Burkhalter brian.burkhalter at oracle.com
Wed Dec 20 22:30:41 UTC 2017

On Dec 20, 2017, at 11:52 AM, Paul Sandoz <paul.sandoz at oracle.com> wrote:

> I was a little lassiaz-faire given that 8K bytes were anyway being allocated upfront. Peter’s changes look good.
> Brian, i would double check the tests to make sure the various code paths are tested.


The patch is updated to:

* use Peter’s approach to avoid allocating an ArrayList when length <= DEFAULT_BUFFER_SIZE;
* use the default ArrayList constructor instead of that with a specific initial capacity;
* update the test to ensure that lengths which require three buffers are covered.



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