RFR: 8315834: Open source several Swing JSpinner related tests

[Prasanta Sadhukhan]

On Wed, 13 Sep 2023 07:22:52 GMT, Tejesh R <tr at openjdk.org> wrote:

>> test/jdk/javax/swing/JSpinner/bug4522737.java line 51:
>> 
>>> 49:                 objectOutputStream = new ObjectOutputStream(byteArrayOutputStream);
>>> 50:                 objectOutputStream.writeObject(originalComponent);
>>> 51:             } catch (Throwable e) {
>> 
>> You can remove this try-catch block and let original exception propagate
>
> The test can be headless right? Not necessary to be headful?

yes

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PR Review Comment: https://git.openjdk.org/jdk/pull/15678#discussion_r1324091300