On Thu, 5 Sep 2024 12:01:23 GMT, Michael Strauß <mstra...@openjdk.org> wrote:

> None of these classes can be extended by user code, and any attempt to do so 
> will fail at runtime with an exception. For this reason, we can seal the 
> class hierarchy and remove the run-time checks to turn this into a 
> compile-time error instead.
> 
> In some cases, `Node` and `Shape` are extended by JavaFX classes in other 
> modules, preventing those derived classes from being permitted subclasses. A 
> non-exported `AbstractNode` and `AbstractShape` class is provided just for 
> these scenarios. Note that introducing a new superclass is a source- and 
> binary-compatible change (see [JLS ch. 
> 13](https://docs.oracle.com/javase/specs/jls/se22/html/jls-13.html)).
> 
> I'm not sure if this change requires a CSR, as it doesn't change the 
> specification in any meaningful way. There can be no valid JavaFX program 
> that is affected by this change.

This pull request has now been integrated.

Changeset: c5a98395
Author:    Michael Strauß <mstra...@openjdk.org>
URL:       
https://git.openjdk.org/jfx/commit/c5a983952ee62ffa56a55a840b57a357fe204bcc
Stats:     215 lines in 46 files changed: 93 ins; 41 del; 81 mod

8339603: Seal the class hierarchy of Node, Camera, LightBase, Shape, Shape3D

Reviewed-by: angorya, kcr

-------------

PR: https://git.openjdk.org/jfx/pull/1556

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