RFR: 8284855: Update needed to Cleaners added to jdk.crypto.cryptoki [v7]

Tue Apr 19 19:50:42 UTC 2022

On Tue, 19 Apr 2022 14:00:06 GMT, Xue-Lei Andrew Fan <xuelei at openjdk.org> wrote:

>> This is an effort to fix a problem introduced in the fix for [JDK-8284368](https://bugs.openjdk.java.net/browse/JDK-8284368), which replaced the finalizers in jdk.crypto.cryptoki with Cleaners.  However, there is a problem with the code changes. The Runnables registered with Cleaner refer to the object being registered ('this'). Meaning, the Cleaner mechanism will keep the objects reachable, preventing them from being cleaned and collected.
>
> Xue-Lei Andrew Fan has updated the pull request incrementally with one additional commit since the last revision:
> 
>   remove duplicated checking

Marked as reviewed by valeriep (Reviewer).

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PR: https://git.openjdk.java.net/jdk/pull/8248