4 ms·
Not sure if this is related to your issue, but drop down menus in Java seem to have issues with some Linux desktop "themes" (GTK themes, I think). For example,
by bobthedino 13y ago
Not sure if this is related to your issue, but drop down menus in Java seem to have issues with some Linux desktop "themes" (GTK themes, I think). For example, on CentOS the default theme causes the menus in Netbeans to be drawn without any borders. Changing the theme to something else fixes the problem.