Just a minor renderung issue.
JDK9 b129 + Windows 7, 10
Please run the attached test code. The ticks (y-axis) may look a bit irregular, especially when resizing the window (see the screenshot attached - "ticks_nok.png").
Please see also a notable gap before 100 for x-axis.
When setting some greater tick unit value (e.g., 10) the ticks look as expected