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

[Alexander Matveev]

On Fri, 26 Sep 2025 11:41:44 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 70:
> 
>> 68: 
>> 69:     // We do not need full Info.plist for testing
>> 70:     private static String getInfoPListXML(String bundleName) {
> 
> Use jdk.jpackage.internal.util.XmlUtils.createXml() helper to create xml file. It will format the output xml and will also eliminate the need for the patch in PListWriter class.

Should I remove `writePList()` since it is broken and it is not used?

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PR Review Comment: https://git.openjdk.org/jdk/pull/27509#discussion_r2389521050