java/awt/Scrollbar/ScrollbarMouseWheelTest/ScrollbarMouseWheelTest.java fails

This failure observed on Windows 7 :
----------System.out:(46/1376)----------
Robot.mouseWheel() on scrollbar0
mouseWheelMoved() on scrollbar0
mouseWheelMoved() on panel0
Robot.mouseWheel() on scrollbar0
mouseWheelMoved() on scrollbar0
mouseWheelMoved() on panel0
Robot.mouseWheel() on scrollbar0
mouseWheelMoved() on scrollbar0
mouseWheelMoved() on panel0
Robot.mouseWheel() on scrollbar0
mouseWheelMoved() on scrollbar0
mouseWheelMoved() on panel0
Robot.mouseWheel() on scrollbar0
mouseWheelMoved() on scrollbar0
mouseWheelMoved() on panel0
Robot.mouseWheel() on scrollbar0
mouseWheelMoved() on scrollbar0
mouseWheelMoved() on panel0
Robot.mouseWheel() on scrollbar0
mouseWheelMoved() on scrollbar0
mouseWheelMoved() on panel0
Robot.mouseWheel() on scrollbar0
mouseWheelMoved() on scrollbar0
mouseWheelMoved() on panel0
Robot.mouseWheel() on scrollbar0
mouseWheelMoved() on scrollbar0
mouseWheelMoved() on panel0
Robot.mouseWheel() on scrollbar0
Robot.mouseWheel() on scrollbar1
Robot.mouseWheel() on scrollbar1
Robot.mouseWheel() on scrollbar1
Robot.mouseWheel() on scrollbar1
Robot.mouseWheel() on scrollbar1
Robot.mouseWheel() on scrollbar1
Robot.mouseWheel() on scrollbar1
Robot.mouseWheel() on scrollbar1
Robot.mouseWheel() on scrollbar1
Robot.mouseWheel() on scrollbar1
Test done.
Test Failed:
sb1upevents =5
sb2upevents = 0
pnlupevents = 5
sb1downevents =4
sb2downevents = 0
pnldownevents = 4
----------System.err:(14/879)----------
java.lang.RuntimeException: Test FAILED.
at ScrollbarMouseWheelTest.test(ScrollbarMouseWheelTest.java:128)
at ScrollbarMouseWheelTest.main(ScrollbarMouseWheelTest.java:62)
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: Test FAILED.
JavaTest Message: shutting down test

STATUS:Failed.`main' threw exception: java.lang.RuntimeException: Test FAILED.