On Tue, 25 Jan 2022 07:54:21 GMT, meghanEmbrace <d...@openjdk.java.net> wrote:

>> With a touch-enabled device, the scrollbar disappears a short while after 
>> it's used. During the layout, updateHbar() checks the hbar visibility and 
>> resets the clip, causing the user to be scrolled fully to the left when 
>> trying to access columns on the right. Using hbar.isVisible() is not 
>> feasible as there are times when the scrollbar is necessary but not visible 
>> (such as on touch-enabled devices where the scrollbar disappears when not in 
>> use, or when hidden by CSS). Hence, it is more reliable to use the variable 
>> that determines whether the hbar is necessary.
>
> meghanEmbrace has updated the pull request incrementally with one additional 
> commit since the last revision:
> 
>   Added requested automated test

The test looks good with one comment about replacing the null test with an 
assert.

modules/javafx.controls/src/test/java/test/javafx/scene/control/TableViewTest.java
 line 820:

> 818: 
> 819:         ScrollBar horizontalBar = 
> VirtualFlowTestUtils.getVirtualFlowHorizontalScrollbar(table);
> 820:         if (horizontalBar != null) {

Won't `horizontalBar` always be non-null (else the test won't test anything)? I 
recommend removing this `if` test, and instead `assertNotNull(horizontalBar);`.

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

PR: https://git.openjdk.java.net/jfx/pull/688

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