The javax/swing/JComboBox/TestComboBoxComponentRendering.java test fails on Linux with the following log:

----------System.out:(3/118)----------
Testing LAF: javax.swing.plaf.nimbus.NimbusLookAndFeel
Passed
Testing LAF: com.sun.java.swing.plaf.gtk.GTKLookAndFeel
----------System.err:(12/944)----------
java.lang.RuntimeException: ComboBox components not rendered correctly for: com.sun.java.swing.plaf.gtk.GTKLookAndFeel
        at TestComboBoxComponentRendering.doTesting(TestComboBoxComponentRendering.java:111)
        at TestComboBoxComponentRendering.main(TestComboBoxComponentRendering.java:65)
        at ...