RFR: 8364146: JList getScrollableUnitIncrement return 0

Abhishek Kumar abhiscxk at openjdk.org
Fri Aug 1 06:47:54 UTC 2025


On Mon, 28 Jul 2025 09:14:48 GMT, Prasanta Sadhukhan <psadhukhan at openjdk.org> wrote:

> It seems JList.getScrollableUnitIncrement can sometime return 0 instead of positive number which is not specified in the javadoc which can lead to confusion. Clarified javadoc as to when it can return 0.

src/java.desktop/share/classes/javax/swing/JList.java line 2512:

> 2510:      * @return the "unit" increment for scrolling in the specified direction;
> 2511:      *         which is usually positive. But it can return 0
> 2512:      *         if {@code visibleRect} points to that row

should it be `the` or `that` ?
Suggestion:

     *         if {@code visibleRect} points to the row


Requires a CSR too ?

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PR Review Comment: https://git.openjdk.org/jdk/pull/26500#discussion_r2247118982


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