RFR: 8313612: Use JUnit in lib-test/jdk tests

[Christian Stein]

On Wed, 2 Aug 2023 23:25:13 GMT, Qing Xiao <duke at openjdk.org> wrote:

> Modified all tests under lib-test/jdk to use JUnit

Please only keep first and last/latest year of changes.

test/lib-test/jdk/test/lib/hexdump/HexPrinterTest.java line 2:

> 1: /*
> 2:  * Copyright (c) 2019, 2020, 2023, Oracle and/or its affiliates. All rights reserved.

Suggestion:

 * Copyright (c) 2019, 2023, Oracle and/or its affiliates. All rights reserved.

test/lib-test/jdk/test/lib/hexdump/ObjectStreamPrinterTest.java line 2:

> 1: /*
> 2:  * Copyright (c) 2019, 2021, 2023, Oracle and/or its affiliates. All rights reserved.

Suggestion:

 * Copyright (c) 2019, 2023, Oracle and/or its affiliates. All rights reserved.

-------------

Changes requested by cstein (Committer).

PR Review: https://git.openjdk.org/jdk/pull/15131#pullrequestreview-1578134852
PR Review Comment: https://git.openjdk.org/jdk/pull/15131#discussion_r1294308211
PR Review Comment: https://git.openjdk.org/jdk/pull/15131#discussion_r1294308602