The javax/swing/JMenu/8072900/WrongSelectionOnMouseOver.java test fails on Linux with a few number of different error messages:

----------System.out:(6/298)----------
Testing UI: javax.swing.UIManager$LookAndFeelInfo[Metal javax.swing.plaf.metal.MetalLookAndFeel]
Menu1: menuSelected
WrongSelectionOnMouseOver.mouseEntered
Menu1: menuDeselected
Testing UI: javax.swing.UIManager$LookAndFeelInfo[Nimbus javax.swing.plaf.nimbus.NimbusLookAndFeel]
Menu1: menuSelected
----------System.err:(14/896)----------
java.lang.RuntimeException: MouseEntered event missed for the second menu
        at WrongSelectionOnMouseOver.test(WrongSelectionOnMouseOver.java:189)
        at WrongSelectionOnMouseOver.main(WrongSelectionOnMouseOver.java:201)
        at ...


----------System.out:(9/467)----------
Testing UI: javax.swing.UIManager$LookAndFeelInfo[Metal javax.swing.plaf.metal.MetalLookAndFeel]
Menu1: menuSelected
WrongSelectionOnMouseOver.mouseEntered
Menu1: menuDeselected
Testing UI: javax.swing.UIManager$LookAndFeelInfo[Nimbus javax.swing.plaf.nimbus.NimbusLookAndFeel]
Menu1: menuSelected
WrongSelectionOnMouseOver.mouseEntered
Menu1: menuDeselected
Testing UI: javax.swing.UIManager$LookAndFeelInfo[CDE/Motif com.sun.java.swing.plaf.motif.MotifLookAndFeel]
----------System.err:(14/842)----------
java.lang.RuntimeException: Menu has not been selected.
        at WrongSelectionOnMouseOver.test(WrongSelectionOnMouseOver.java:182)
        at WrongSelectionOnMouseOver.main(WrongSelectionOnMouseOver.java:201)
        at …


----------System.out:(2/117)----------
Testing UI: javax.swing.UIManager$LookAndFeelInfo[Metal javax.swing.plaf.metal.MetalLookAndFeel]
Menu1: menuSelected
----------System.err:(14/896)----------
java.lang.RuntimeException: MouseEntered event missed for the second menu
at WrongSelectionOnMouseOver.test(WrongSelectionOnMouseOver.java:189)
at WrongSelectionOnMouseOver.main(WrongSelectionOnMouseOver.java:201)
at …