RFR: 8354774: DocumentBuilderFactory getAttribute throws NPE [v3]

[Lance Andersen]

On Mon, 21 Apr 2025 16:19:30 GMT, Joe Wang <joehw at openjdk.org> wrote:

>> Fix a NPE on calling DocumentBuilderFactory::getAttribute, refer to the bug report.
>> 
>> Also in this patch: consolidates get and set properties to use the same Util methods to reduce potential errors when code changes.
>> 
>> Test:
>>     Tier1 - 3 passed
>>     JCK test passed
>
> Joe Wang has updated the pull request incrementally with one additional commit since the last revision:
> 
>   adjust spaces

Marked as reviewed by lancea (Reviewer).

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PR Review: https://git.openjdk.org/jdk/pull/24732#pullrequestreview-2781842304