On Mon, 12 Jan 2026 23:51:14 GMT, Christopher Schnick <[email protected]> wrote:
>> modules/javafx.graphics/src/main/java/javafx/scene/Scene.java line 3721:
>>
>>> 3719: if (! e.isBackButtonDown()) {
>>> counters.get(MouseButton.BACK).clear(); }
>>> 3720: if (! e.isForwardButtonDown()) {
>>> counters.get(MouseButton.FORWARD).clear(); }
>>> 3721: if (cc != null) {
>>
>> this looks far safer, though it's still unclear why this might happen.
>> perhaps it's a problem with the test code and not the product?
>
> If I get this correctly, if an event with an unknown raw mouse button index
> is sent, then this will map it MouseButton.NONE and cc will be null:
> https://github.com/openjdk/jfx/blob/fd30c94893156644c0d803b3e7fd8c9731d65fe6/modules/javafx.graphics/src/main/java/com/sun/javafx/tk/quantum/GlassViewEventHandler.java#L234
I saw a comment to another issue in
https://github.com/openjdk/jfx/blob/fd30c94893156644c0d803b3e7fd8c9731d65fe6/modules/javafx.graphics/src/main/java/com/sun/javafx/tk/quantum/GlassViewEventHandler.java#L302
but somehow I can't access it. So no idea what this was about
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PR Review Comment: https://git.openjdk.org/jfx/pull/2034#discussion_r2684295660