Hello, The cause of JDK-8162591 is Java2D's gradient implementation allowing for coordinates to be specified using floating point values, whereas XRender is limited to a 16.16 fixed point format - which can therefor easily overflow.
This patch checks whether the supplied coordinates can be represented by XRenders fixed-point format, falling back to software otherwise. Please find a fist version of the proposed patch at: http://93.83.133.214/8162591/webrev.01/ Thank you in advance and best regards, Clemens
