<i18n dev> RFR: JDK-8316559: Refactor some util/Calendar tests to JUnit [v2]

[Naoto Sato]

On Fri, 22 Sep 2023 19:44:00 GMT, Justin Lu <jlu at openjdk.org> wrote:

>> test/jdk/java/util/Calendar/Bug4766302.java line 32:
>> 
>>> 30: import java.util.GregorianCalendar;
>>> 31: 
>>> 32: @SuppressWarnings("serial")
>> 
>> Is removing this OK?
>
> At first I thought so, there is no warning about a missing serialVersionUID when the _SuppressWarnings_ annotation is removed, and IntelliJ actually flags the annotation as redundant. But since it was added separately and intentionally in [JDK-8165296](https://bugs.openjdk.org/browse/JDK-8165296), I would rather leave it alone on second thought.

Not sure why IntelliJ claims it redundant, but compiling the test case alone, without that `@SuppressWarnings` with `-Xlint` gives me this:

warning: [serial] serializable class MyCalendar has no definition of serialVersionUID

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PR Review Comment: https://git.openjdk.org/jdk/pull/15853#discussion_r1334788356