RFR: 8344332: (bf) Migrate DirectByteBuffer away from jdk.internal.ref.Cleaner [v2]

[Kim Barrett]

On Mon, 19 May 2025 19:37:58 GMT, Roger Riggs <rriggs at openjdk.org> wrote:

>> src/java.base/share/classes/java/nio/Direct-X-Buffer.java.template line 209:
>> 
>>> 207:         super(-1, 0, cap, cap, fd, isSync, segment);
>>> 208:         address = addr;
>>> 209: 	cleaner = (unmapper == null) ? null : BufferCleaner.register(this, unmapper);
>> 
>> **OpenJDK** unfortunately uses the less accessible spaces[^1]:
>> Suggestion:
>> 
>>         cleaner = (unmapper == null) ? null : BufferCleaner.register(this, unmapper);
>> 
>> 
>> [^1]:	- prettier/prettier#7475
>> 	- https://alexandersandberg.com/tabs-for-accessibility/
>
> OpenJDK has not considered adoption of tabs-for-accessibility and sticks to using spaces across the codebase.

I didn't notice that a tab had snuck in there.  Thanks for spotting.

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PR Review Comment: https://git.openjdk.org/jdk/pull/25289#discussion_r2096427690