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

[prsadhuk]

Issue is RadioButtonMenuItem and CheckBoxMenuItem bullet/checkmark icon is not displayed in WindowsL&F when the test is run with NimbusL&F.
This is because WindowsIconFactory#VistaMenuItemCheckIcon.paintIcon called getLaFIcon() which returns a empty NimbusIcon which causes no icons to be drawn. This is because the test after setting WIndows L&F of the menuitem reverts back the Windows L&F to Nimbus L&F via UIManager.setLookAndFeel(save); call in the test so when frame is made visible, the L&F resets back to Nimbus L&F resulting in null NimbusIcon.

Fix is made to make sure the whole frame is updated to cater to L&F change via SwingUtilities.updateComponentTreeUI(frame); call and keep the L&F without reverting back to original L&F..

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Issue

• JDK-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 (Bug - P5)

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