8160974: [TESTBUG] Mark more headful tests with @key headful.Reviewed-by: serb, simonis
8158495: CCE: sun.java2d.NullSurfaceData cannot be cast to sun.java2d.opengl.OGLSurfaceDataReviewed-by: serb, prr
8158072: Need a test for JDK-7172749Reviewed-by: prr, avu