RFR: 8307297: Move some DnD tests to open [v2]

[Andrey Turbanov]

On Tue, 2 May 2023 20:57:28 GMT, Alisen Chung <achung at openjdk.org> wrote:

>> Adding some DnD tests
>
> Alisen Chung has updated the pull request incrementally with one additional commit since the last revision:
> 
>   added space after if, moved some function calls on EDT

test/jdk/java/awt/dnd/DropPerformanceTest.java line 237:

> 235:         Object ret = null;
> 236:         ByteArrayOutputStream baos = new ByteArrayOutputStream();
> 237:         ObjectOutputStream oos  = new ObjectOutputStream(baos);

Suggestion:

        ObjectOutputStream oos = new ObjectOutputStream(baos);

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PR Review Comment: https://git.openjdk.org/jdk/pull/13756#discussion_r1185480708