In our CI this test has failed with following exception :

----------System.out:(0/0)----------
----------System.err:(17/1063)----------
sun.awt.SunToolkit$OperationTimedOut: 14721
at java.desktop/sun.awt.X11.XToolkit.syncNativeQueue(XToolkit.java:2479)
at java.desktop/sun.awt.SunToolkit.realSync(SunToolkit.java:1510)
at java.desktop/sun.awt.SunToolkit.realSync(SunToolkit.java:1437)
at java.desktop/java.awt.Robot.waitForIdle(Robot.java:686)
at TranslucentWindow.main(TranslucentWindow.java:58)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:78)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:567)
at com.sun.javatest.regtest.agent.MainWrapper$MainThread.run(MainWrapper.java:127)
at java.base/java.lang.Thread.run(Thread.java:831)

JavaTest Message: Test threw exception: sun.awt.SunToolkit$OperationTimedOut: 14721
JavaTest Message: shutting down test

STATUS:Failed.`main' threw exception: sun.awt.SunToolkit$OperationTimedOut: 14721