RFR: 8302017: Allocate BadPaddingException only if it will be thrown

Tue Mar 14 21:25:51 UTC 2023

On Thu, 23 Feb 2023 18:15:35 GMT, Ahmed Muhsin <duke at openjdk.org> wrote:

> This change will move the instantiation of BadPaddingException into the branch of the if statement where it is thrown. This will decrease the overhead of calling `unpadV15` and `unpadOAEP`.  Please see the associated work item for past discussions regarding this change.
> 
> The build and tier1 tests pass locally on mac-aarch64.

May I get a chance to review it before the integration?  I may need more time to dig into time-constant issue.

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Changes requested by xuelei (Reviewer).

PR: https://git.openjdk.org/jdk/pull/12732