I am using Linux displaying a JFX application onto a remote X11 display on a Mac.

The application requested size will always show correctly on the connected local display (:0) but will always be wrong on my remote display. The presented size appears to be a minimum based on the title size by maybe 10 pixels tall.

If I resize the window - the displayed contents look correct.

Other X11 applications do not appear to have this issue.

I suspect that this is a flaw in our handling of X11 window sizing in glass, that we are creating a minimum sized window, and cannot properly handle the delay in X11 server response to the subsequent window sizing.

Tested with a number of applications, but most recently with toys from HelloWorld.jar, helloworld.HelloSanity, and helloworld.HelloRectangle

Last note: using SSH forwarding.