How to prevent OpenJDK 11 from changing the Window size due to some internal reason

[Martin Petzold]

Dear all,

most probably because of a bug in Weston implementation on Linux [1]: if 
I detach and attach an HDMI head OR change via HDMI-CEC to standby and 
back, my Java window is resized to 1x1 pixel automatically due to some 
internal method. This is a serious bug to us. We have tested with pure 
Weston application, and there was no such bug. Also we are using 
XWayland because of Java. Currently we cannot backport that patch to 
Weston 9 because of extensive changes in code.

Is there any way to prevent OpenJDK 11 from resizing any window due some 
internal method? I would like to have 100% control..

We tried to catch the event and resize back, but this was not stable. 
Any other idea for a work-around?

[1] 
https://gitlab.freedesktop.org/wayland/weston/-/commit/bcacd9ec5a924317416eabb65a6cd6767d5bfb94

Thanks,

Martin