RFR: 8361715: (bf) Improve java/nio/Buffer/GetChars.java and migrate to JUnit [v2]

[Brian Burkhalter]

On Mon, 14 Jul 2025 13:16:24 GMT, Brett Okken <duke at openjdk.org> wrote:

> Should I add test data for CharBuffer coming from
> https://docs.oracle.com/en/java/javase/21/docs/api/java.base/java/nio/ByteBuffer.html#asCharBuffer()

There is not usually any harm in having more test coverage.

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PR Comment: https://git.openjdk.org/jdk/pull/26282#issuecomment-3071141485