javax/swing/JComboBox/8182031/ComboPopupTest.java fails on Ubuntu 16.04 with the following error
popmenu visible false
----------System.err:(14/881)----------
java.lang.RuntimeException: combobox popup is not visible
at ComboPopupTest.<init>(ComboPopupTest.java:83)
at ComboPopupTest.main(ComboPopupTest.java:66)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:564)
at com.sun.javatest.regtest.agent.MainWrapper$MainThread.run(MainWrapper.java:115)
at java.base/java.lang.Thread.run(Thread.java:844)

JavaTest Message: Test threw exception: java.lang.RuntimeException: combobox popup is not visible
JavaTest Message: shutting down test

STATUS:Failed.`main' threw exception: java.lang.RuntimeException: combobox popup is not visible