[8u] RFR: JDK-8258419: RSA cipher buffer cleanup

[Severin Gehwolf]

On Fri, 2021-03-19 at 05:41 +0000, Andrew Hughes wrote:
> Bug: https://bugs.openjdk.java.net/browse/JDK-8258419
> Webrev: https://cr.openjdk.java.net/~andrew/openjdk8/8258419/webrev.01/
> 
> This patch cleans up RSA temporary buffers after use and avoids
> some unnecessary copying. Fix is backported to all Oracle releases
> from 7 to 17.
> 
> Patch applies almost cleanly to 8u. Only rejects are the copyright
> header changes to RSAPadding.java and RSACipher.java, as they were
> already updated to 2020 by JDK-8230978.
> 
> Ok for 8u?

Looks OK to me.

Thanks,
Severin