RFR: 8327787: Convert javax/swing/border/Test4129681.java applet test to main [v2]

[Alexey Ivanov]

On Tue, 12 Mar 2024 03:18:15 GMT, Tejesh R <tr at openjdk.org> wrote:

>> test/jdk/javax/swing/border/Test4129681.java line 41:
>> 
>>> 39: 
>>> 40: public class Test4129681 {
>>> 41:     private static JLabel label;
>> 
>> The `label` does not need to be global, it can be confined to `init`.
>
> Its been used inside `itemListener`.

I guess it was needed but now it's not; so it's better to clean this up.

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PR Review Comment: https://git.openjdk.org/jdk/pull/18189#discussion_r1521088159