RFR: 8346753: Test javax/swing/JMenuItem/RightLeftOrientation/RightLeftOrientation.java fails on Windows Server 2025 x64 because the icons of RBMenuItem and CBMenuItem are not visible in Nimbus LookAndFeel

[Abhishek Kumar]

On Fri, 4 Jul 2025 09:54:54 GMT, Alexey Ivanov <aivanov at openjdk.org> wrote:

>> test/jdk/javax/swing/JMenuItem/RightLeftOrientation.java line 92:
>> 
>>> 90:         JMenuBar menuBar = new JMenuBar();
>>> 91: 
>>> 92:         menuBar.add(createMenu("javax.swing.plaf.metal.MetalLookAndFeel",
>> 
>> I tried to extend the test (with this PR changes included) for all installed L&Fs and then create the menu for each L&F. 
>> 
>>         UIManager.LookAndFeelInfo[] lafs = UIManager.getInstalledLookAndFeels();
>>         for (final UIManager.LookAndFeelInfo lafInfo : lafs) {
>>             System.out.println("installed laf className : " + lafInfo.getClassName());
>>             System.out.println("installed laf Name : " + lafInfo.getName());
>>             menuBar.add(createMenu(lafInfo.getClassName(), lafInfo.getName()));
>>         }
>> 
>> Then the test failed with this exception 
>> 
>>         java.lang.NullPointerException: Cannot invoke "java.awt.Font.hashCode()" because "font" is null
>> 	at java.desktop/sun.font.FontDesignMetrics$MetricsKey.init(FontDesignMetrics.java:213)
>> 	at java.desktop/sun.font.FontDesignMetrics.getMetrics(FontDesignMetrics.java:282)
>> 	at java.desktop/sun.swing.SwingUtilities2.getFontMetrics(SwingUtilities2.java:1235)
>> 
>> Otherwise the RBMI and CBMI does contain the icon after the fix.
>
> This is similar to the exception that I got [above](https://github.com/openjdk/jdk/pull/25907#issuecomment-3001288429). It's just a result of mixing several L&Fs at the same time.

Yes but it was not supposed to come when `SwingUtilities.updateComponentTreeUI(frame)` is used to update all UI components.

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PR Review Comment: https://git.openjdk.org/jdk/pull/25907#discussion_r2184932515