RFR: 8362598: [macos] Add tests for custom info plist files

[Alexander Matveev]

On Fri, 26 Sep 2025 11:44:18 GMT, Alexey Semenyuk <asemenyuk at openjdk.org> wrote:

>> - Added test for custom info plist to cover app image including embedded runtime and runtime installer.
>> - Fixed bug in `writePList`. It was missing `writeStartDocument()/writeEndDocument()` and `DOCTYPE` should be full xml string.
>
> test/jdk/tools/jpackage/macosx/CustomInfoPListTest.java line 143:
> 
>> 141: 
>> 142:         MacHelper.withExplodedDmg(cmd, dmgImage -> {
>> 143:             if (dmgImage.endsWith(cmd.name() + ".jdk")) {
> 
> Isn't this test redundant?

No. This function is called for all files in DMG such as `/Volumes/foo/.background`.

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PR Review Comment: https://git.openjdk.org/jdk/pull/27509#discussion_r2389527448