Hi Cristopher, https://github.com/openjdk/jfx/pull/1249
We noticed it and I'm working on a fix. There's one issue that is probably a mutter bug: https://gitlab.gnome.org/GNOME/mutter/-/issues/3092 -- Thiago Em seg., 23 de out. de 2023 10:05, Christopher Schnick <crschn...@xpipe.io> escreveu: > Hello, > > a user of our application xpipe <https://github.com/xpipe-io/xpipe> > reported several issues after upgrading their Ubuntu version and I > investigated them myself. I want to note here that these issues are > exclusive to new Ubuntu versions. I did not observe any of them on slightly > older Ubuntu versions or other Gnome-based desktop environments. I don't > know exactly which versions are affected, but 22.04 works fine and Ubuntu > 23.10 does not. > > I'm sorry that I'm not able to create fully reproducible examples or dig > deeper into the causes here, but I'm very constrained on time right now. > For reproduction, I just installed a new default Ubuntu 23.10 VM and > launched the JavaFX 21 application straight out of the box. > > The first issue is that windows do not retain their information when being > hidden and then shown again. I.e. after being shown for the second time, > they will have tiny dimensions and an GTK error is printed to stderr about > height > < 0. For now I temporarily resolve this by doing the following, which > somehow fixes the issue: > > stage.show(); > > // Due to some weird GTK bug, we have to set these sizes every > time we show a window again even though they have been previously set > stage.setX(stage.getX()); > stage.setY(stage.getY()); > stage.setWidth(stage.getWidth()); > stage.setHeight(stage.getHeight()); > > Furthermore, while this is technically not purely JavaFX related, there is > also a total freeze of the platform thread when it calls > javax.swing.UIManager.setLookAndFeel > as it gets stuck in some GTK implementation method. This is called by the > fxtrayicon library, which calls this method here > <https://github.com/dustinkredmond/FXTrayIcon/blob/81c99a7357d8f48d9547c0bdb54b848041ce67c6/src/main/java/com/dustinredmond/fxtrayicon/FXTrayIcon.java#L923>. > Since there is no native JavaFX tray integration, calling these awt/swing > related methods is quite important for applications trying to use the > system tray. This was a very unfortunate issue for us as it caused > applications to not start up at all on affected systems. > I wasn't able to compare the behavior to Ubuntu 22.04 as > SystemTray.isSupported() returns false on Ubuntu 22.04 but returns true on > Ubuntu 23.10. Should this even return true on Ubuntu now or is this a bug? > > Again, these issues only occur on the very latest Ubuntu release. I have > tested on a lot of other different distros, old and new, and they all > worked flawlessly. > > Best regards, Christopher > >
