On Fri, 31 Jan 2025 21:39:12 GMT, Kevin Rushforth <k...@openjdk.org> wrote:
>> tests/system/src/test/java/test/robot/javafx/scene/NodeInitializationBackgroundThreadTest.java
>> line 732:
>>
>>> 730: private <T extends Node> void test(Supplier<T> generator,
>>> Consumer<T> operation) {
>>> 731: AtomicReference<T> ref = new AtomicReference();
>>> 732: runAndWait(() -> {
>>
>> What was the rationale for this change? This means we are no longer testing
>> the ability to construct a node off thread.
>>
>> Related to this, I think a separate set of tests where we construct
>> instances of the node in a loop would be useful, in addition to the set of
>> tests that mutates the node in a loop.
>
> I think this change is why the Tooltip test is no longer failing. The failure
> mode reported in [JDK-8348100](https://bugs.openjdk.org/browse/JDK-8348100)
> happens when constructing Tooltip on a background thread.
The very first (visible) node should be created in the FX application thread
(something I missed earlier). All other instances are created in the
background thread - notice the second call to `generator.get()` inside the
background thread lambda.
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PR Review Comment: https://git.openjdk.org/jfx/pull/1690#discussion_r1938072166
