On Tue, 10 Mar 2026 07:51:47 GMT, Prasanta Sadhukhan <[email protected]> 
wrote:

> As per [JDK-8306119](https://bugs.openjdk.org/browse/JDK-8306119), many 
> classes were updated to request Focus with a MOUSE_EVENT cause, rather than 
> having an UNKNOWN cause.
> 
> However, Swingutiilites2 also request Focus without cause which can also be 
> updated to show appropriate cause
> Couple of SwingUtilities2 methods are updated with proper cause, which are 
> called from 
> 
> https://github.com/openjdk/jdk/blob/9a26b4af34cd3e8690c5150da232eaa8bf3a82a6/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicListUI.java#L2878
> https://github.com/openjdk/jdk/blob/9a26b4af34cd3e8690c5150da232eaa8bf3a82a6/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicListUI.java#L2974-L2976
> https://github.com/openjdk/jdk/blob/9a26b4af34cd3e8690c5150da232eaa8bf3a82a6/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicTableUI.java#L1064
> https://github.com/openjdk/jdk/blob/9a26b4af34cd3e8690c5150da232eaa8bf3a82a6/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicTableUI.java#L1107
> https://github.com/openjdk/jdk/blob/9a26b4af34cd3e8690c5150da232eaa8bf3a82a6/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicTableUI.java#L1199-L1202
> https://github.com/openjdk/jdk/blob/9a26b4af34cd3e8690c5150da232eaa8bf3a82a6/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicTreeUI.java#L4096
> https://github.com/openjdk/jdk/blob/9a26b4af34cd3e8690c5150da232eaa8bf3a82a6/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicTreeUI.java#L4132
> https://github.com/openjdk/jdk/blob/9a26b4af34cd3e8690c5150da232eaa8bf3a82a6/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicTreeUI.java#L4207-L4210
> https://github.com/openjdk/jdk/blob/9a26b4af34cd3e8690c5150da232eaa8bf3a82a6/src/java.desktop/share/classes/javax/swing/JInternalFrame.java#L1430-L1432
> https://github.com/openjdk/jdk/blob/9a26b4af34cd3e8690c5150da232eaa8bf3a82a6/src/java.desktop/share/classes/sun/swing/SwingUtilities2.java#L1680

src/java.desktop/share/classes/sun/swing/SwingUtilities2.java line 799:

> 797:     public static void adjustFocus(JComponent c) {
> 798:         if (!c.hasFocus() && c.isRequestFocusEnabled()) {
> 799:             c.requestFocus(FocusEvent.Cause.MOUSE_EVENT);

Is it always through MOUSE_EVENT or can there be Key press also ?

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PR Review Comment: https://git.openjdk.org/jdk/pull/30157#discussion_r2929504797

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