RFR: 8344332: (bf) Migrate DirectByteBuffer to use java.lang.ref.Cleaner [v9]

[Aleksey Shipilev]

On Wed, 22 Jan 2025 20:35:49 GMT, Brent Christian <bchristi at openjdk.org> wrote:

>> Aleksey Shipilev has updated the pull request incrementally with three additional commits since the last revision:
>> 
>>  - No instantiation for BufferCleaner, javadocs
>>  - Remove hasReferencePendingList
>>  - Revert test exclusion, moved to JDK-8348301
>
> src/java.base/share/classes/java/lang/ref/Reference.java line 286:
> 
>> 284:     {
>> 285:         synchronized (processPendingLock) {
>> 286:             if (processPendingActive || hasReferencePendingList()) {
> 
> It looks like `hasReferencePendingList()` is no longer used.

Right, we can clean this up right here too. Done in new commit.

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PR Review Comment: https://git.openjdk.org/jdk/pull/22165#discussion_r1926586148