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Re: Java 21 and [this-escape] warnings?

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On 6/10/23 06:46, Daniele Futtorovic wrote:

> Hi Knute,
> 
> Still Swing-ing? :-)
> 

Nice to hear from you Daniele.  Yes, they keep paying me and I keep 
writing Swing code.  Works well and it is quick to write.

> 
> The one I don't get (and haven't been able to reproduce) is the 
> #setBorder call.

I saw it once and couldn't make the combination right to get it to show 
up again.

> Is [this-escape] a warning/error that's been specifically added in 
> JDK21? I reckon the problem itself isn't new or changed, and that it's 
> always been there.

It's a feature of the Java 21 compiler.  Things keep getting 
better/tighter all the time.

> As such, you would have two choices, as before: ignore the warning or 
> change your habits.

See Eric Sosman's post.

> For illustration, with Swing I'd made it a habit to construct my UI in 
> #addNotify, for self-constructing components. That wouldn't be 
> applicable to the frame, which you could for instance construct 
> externally (I mean in a factory) with a self-constructing content pane.

I'll have to try that.  It is just so different from the way I've been 
writing Swing code for the last 20 years:-).

Thanks for the post.


-- 

Knute Johnson

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Thread

Java 21 and [this-escape] warnings? Knute Johnson <knute2023@585ranch.com> - 2023-06-09 20:32 -0500
  Re: Java 21 and [this-escape] warnings? Daniele Futtorovic <da.futt.news@laposte-dot-net.invalid> - 2023-06-10 13:46 +0200
    Re: Java 21 and [this-escape] warnings? Knute Johnson <knute2023@585ranch.com> - 2023-06-10 13:23 -0500
      Re: Java 21 and [this-escape] warnings? Daniele Futtorovic <da.futt.news@laposte-dot-net.invalid> - 2023-06-11 14:45 +0200
  Re: Java 21 and [this-escape] warnings? Eric Sosman <donalhambra@gmail.com> - 2023-06-10 06:58 -0700
    Re: Java 21 and [this-escape] warnings? Knute Johnson <knute2023@585ranch.com> - 2023-06-10 13:26 -0500
  Re: Java 21 and [this-escape] warnings? Arne Vajhøj <arne@vajhoej.dk> - 2023-06-10 18:57 -0400

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