8374727: Audio configuration Platform class - use nio for getting endianness of the underlying platform

[MBaesken]

Currently Platform.java from the audio coding uses its own native code to get the endianness info of the underlying hardware it runs on.
See

jdk/src/java.desktop/share/classes/com/sun/media/sound/Platform.java

Line 86 in da14813

bigEndian = nIsBigEndian();

But we can reuse existing Java JDK code e.g. from nio.

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Issue

• JDK-8374727: Audio configuration Platform class - use nio for getting endianness of the underlying platform (Enhancement - P4)

Reviewers

• Phil Race (@prrace - Reviewer)
• Alexander Zuev (@azuev-java - Reviewer)

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8374727: Audio configuration Platform class - use nio for getting endianness of the underlying platform

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At the time when this comment was updated there had been 28 new commits pushed to the master branch:

• f5fa9e4: 8374745: Test vmTestbase/nsk/monitoring/GarbageCollectorMXBean/CollectionCounters/CollectionCounters004/TestDescription.java failed
• 8737a8c: 8373448: jpackage: StackOverflowError when processing a very long argument
• 6d1bfdf: 8374796: CompressedOops versions of runtime/cds/TestDefaultArchiveLoading.java aren't run
• ... and 25 more: https://git.openjdk.org/jdk/compare/067fd3cb2fa6a4a0484a922df8efbde03325ad3d...master

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[MBaesken]

ByteOrder.nativeOrder() is already used for the BE/LE checks across the JDK, see
https://github.com/search?q=repo%3Aopenjdk%2Fjdk++%22ByteOrder.nativeOrder%28%29+%3D%3D%22&type=code

(maybe we should also have something like public static boolean ByteOrder.isLittleEndian() / public static boolean ByteOrder.isBigEndian() to shorten those checks a bit, but this is out of the scope of this PR)