Hello,
Please review fix for JDK9:
bug: https://bugs.openjdk.java.net/browse/JDK-8160246
webrev: http://cr.openjdk.java.net/~ssadetsky/8160246/webrev.00/
When the scrolled text component width is set to zero the text rootView
is initialized and its preferred spans becomes unconstrained. But at the
same time, the rootView preffered size is used to determine scroll bars
visibility using getScrollableTracksViewportWidth/Height() and if
unconstrained (and unwrapped) rootView height is less than the current
viewport height then the vertical scroll bar is hidden which adds +15px
to the viewport width and makes the rootView constrained in the next
layout iteration which makes vertical scroll bar visible again... This
layout cycle is infinite.
The solution is to initialize the rootView only once when text component
is firstly lay-outed.
--Semyon
