On Thu, 15 Jan 2026 19:29:52 GMT, Christopher Schnick <[email protected]> wrote:

>> modules/javafx.base/src/main/java/com/sun/javafx/binding/SelectBinding.java 
>> line 97:
>> 
>>> 95:             // The type returned might be wrong, but this would not 
>>> throw any ClassCastException here
>>> 96:             // Any casting issue would happen outside this method
>>> 97:             return (T) observable.getValue();
>> 
>> so this is NOT an equivalent change, and therefore would need a deeper 
>> analysis - I, for example, can't tell if this change makes sense or not 
>> right away.  Some objects' `toString()` value may not make sense.
>> 
>> I would suggest to revert this change to keep the PR at the "light 
>> optimization" level.
>
> I really didn't look into it that deeply, but from my understanding, there 
> can't be an exception thrown for such a generic cast at runtime. At least not 
> in the method itself. The class cast exception would happen at some point 
> later after this method returns. But I am not an expert on generics.
> 
> I am not sure what you mean by the toString() comment though

I meant classname@hashcode, like "java.lang.Object@36f6e879" may not be what 
you expect from `.get()`.  A `null` value is the original behavior.

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PR Review Comment: https://git.openjdk.org/jfx/pull/2032#discussion_r2695689040

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