RFR: 8068293: [TEST_BUG] Test closed/com/sun/java/swing/plaf/motif/InternalFrame/4150591/bug4150591.java fails with GTKLookAndFeel [v3]

[Sergey Bylokhov]

On Thu, 23 Oct 2025 03:34:38 GMT, Prasanta Sadhukhan <psadhukhan at openjdk.org> wrote:

>> Test fails in GTKLookAndFeel with NPE
>> 
>> java.lang.NullPointerException
>> at javax.swing.border.BevelBorder.<init>(BevelBorder.java:78)
>> at javax.swing.BorderFactory.createBevelBorder(BorderFactory.java:155)
>> at com.sun.java.swing.plaf.motif.MotifInternalFrameTitlePane$Title.<init>(MotifInternalFrameTitlePane.java:325) 
>> 
>> because `BorderFactory.createBevelBorder` tries to use brighter shade of highlight and shadow color which it tries to obtain from 
>> `UIManager.getColor("activeCaptionBorder")` and `UIManager.getColor("inactiveCaptionBorder")` both of which are not defined in GTK L&F as caption border are not used there
>> 
>> Fix is made to not use these color to create BevelBorder if these colors are not present..
>
> Prasanta Sadhukhan has updated the pull request incrementally with three additional commits since the last revision:
> 
>  - Use motif L&F in test
>  - Use motif L&F in test
>  - Use motif L&F in test

Marked as reviewed by serb (Reviewer).

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PR Review: https://git.openjdk.org/jdk/pull/27839#pullrequestreview-3374574276