RFR: 8253821: Improve ByteBuffer performance with GCM [v3]

[Valerie Peng]

On Wed, 7 Oct 2020 20:50:14 GMT, Anthony Scarpino <ascarpino at openjdk.org> wrote:

>> src/java.base/share/classes/com/sun/crypto/provider/CipherCore.java line 947:
>> 
>>> 945:             // create temporary output buffer if the estimated size is larger
>>> 946:             // than the user-provided buffer.
>>> 947:             if (output.length - outputOffset < estOutSize) {
>> 
>> "outputCapacity" could be used to replace "output.length - outputOffset", and join the clause with the if-clause above.
>
> interesting.. That makes this and the if condition below it able to join again.

Why changing outputCapacity to output.length - outputOffset? Aren't they the same thing and outputCapacity is already computed?

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PR: https://git.openjdk.java.net/jdk/pull/411