RFR: JDK-8297412: Remove easy warnings in javafx.fxml, javafx.media, javafx.swing, javafx.swt and javafx.web [v3]

[John Hendrikx]

On Tue, 22 Nov 2022 18:41:18 GMT, Nir Lisker <nlisker at openjdk.org> wrote:

>> John Hendrikx has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Revert changes to javafx.web src/main/native
>
> modules/javafx.fxml/src/main/java/javafx/fxml/FXMLLoader.java line 1446:
> 
>> 1444:         @Override
>> 1445:         public void processEndElement() throws IOException {
>> 1446:             super.processEndElement();
> 
> I don't see a warning for it, What setting warns about calling an empty method?

The `processEndElement` in the base class was an empty method that throws `IOException`.  By making it `abstract` the warning is avoided, but this means the call to `super` here is no longer relevant (it wasn't relevant anyway as the base method was empty).

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PR: https://git.openjdk.org/jfx/pull/958