RFR: 8361715: (bf) Improve java/nio/Buffer/GetChars.java and migrate to JUnit [v5]

[Brett Okken]

On Thu, 17 Jul 2025 22:22:01 GMT, Brian Burkhalter <bpb at openjdk.org> wrote:

> It's trivial, but do you think it's worth adding a test for a `null` `dst` parameter of `getChars`?

yep

> Do you think that propagating something similar to `GetChars.testGetChars` would be worthwhile or do you think there is already sufficient coverage?

I'll take a stab at it and let me know what you think.

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PR Comment: https://git.openjdk.org/jdk/pull/26282#issuecomment-3089466044