The test test.com.sun.javafx.sg.prism.RenderRootTest.zeroSizeDirtyRegionWithinOpaqueRegion fails with below error,

test.com.sun.javafx.sg.prism.RenderRootTest > zeroSizeDirtyRegionWithinOpaqueRegion FAILED
    java.lang.AssertionError: expected same:<test.com.sun.javafx.sg.prism.NGTestBase$TestNGGroup@5b4f1e56> was not:<test.com.sun.javafx.sg.prism.NGTestBase$TestNGRectangle@d275439>
        at org.junit.Assert.fail(Assert.java:91)
        at org.junit.Assert.failNotSame(Assert.java:639)
        at org.junit.Assert.assertSame(Assert.java:578)
        at org.junit.Assert.assertSame(Assert.java:591)
        at test.com.sun.javafx.sg.prism.RenderRootTest.assertRenderRoot(RenderRootTest.java:121)
        at test.com.sun.javafx.sg.prism.RenderRootTest.zeroSizeDirtyRegionWithinOpaqueRegion(RenderRootTest.java:338)

It should be evaluated if the failure is a test bug or product bug.

The test emptyDirtyRegion() is ignored because of uncertainty of behavior when dirty region is (0,0,-1,-1)