Running Ubuntu 24.10 and KDE 6.6 Plasma. Java TrayIcon stopped working. With this simple code: ``` import java.awt.*; import java.awt.event.*; public class TrayIconExample { public static void main(String[] args) { if (SystemTray.isSupported()) { SystemTray tray = SystemTray.getSystemTray(); Image image = Toolkit.getDefaultToolkit().createImage("icon.png"); TrayIcon trayIcon = new TrayIcon(image, "Tray Demo"); trayIcon.setImageAutoSize(true); trayIcon.setToolTip("Tray Icon Demo"); trayIcon.addMouseListener(new MouseAdapter() { u/Override public void mouseClicked(MouseEvent e) { if (e.getButton() == MouseEvent.BUTTON1) { System.out.println("Left button clicked"); } else if (e.getButton() == MouseEvent.BUTTON3) { System.out.println("Right button clicked"); } else if (e.getButton() == MouseEvent.BUTTON2) { System.out.println("Middle button clicked"); } } }); try { tray.add(trayIcon); } catch (AWTException e) { System.err.println("TrayIcon could not be added."); } } else { System.err.println("System tray not supported!"); } } } ``` Tray icon is correctly added to the tray bar but there is no way to listen to mouse button on it making it unusable. No event is triggered when I click on the tray icon. This issue is blocking making all Java programs that uses a tray icon to not work correcly.
Doesn't seem to be distro specific, seeing this on Arch (Plasma 6.2.4, KDE Frameworks 6.8.0, Qt 6.8.1) Debian Trixie (Plasma 6.2.4, KDE Frameworks 6.6.0, Qt 6.7.2)
I am also experiencing this issue with my app ControllerBuddy -> https://controllerbuddy.org As far as I can tell this appeared with KDE 6.0 - on KDE 5 the tray works flawlessly with AWT. As this issue renders the tray icon useless, in my app I even started checking for KDE versions >= 6 to handle them as if the tray is not supported at all, which is really unfortunate... :( I might be willing to look into this if nobody else cares, but at least some intial pointers on where to start digging would be helpful...
*** This bug has been marked as a duplicate of bug 498824 ***
(In reply to Matteo Hausner from comment #2) > I am also experiencing this issue with my app ControllerBuddy -> > https://controllerbuddy.org I see that ControllerBuddy has completely new code for system tray (very nice!), which works fine with KDE.
(In reply to Konrad Materka from comment #4) > (In reply to Matteo Hausner from comment #2) > > I am also experiencing this issue with my app ControllerBuddy -> > > https://controllerbuddy.org > > I see that ControllerBuddy has completely new code for system tray (very > nice!), which works fine with KDE. Yes, ControllerBuddy is now using SDL3 to handle the tray icon, so it is no longer affected by this issue.
Hi. I have this problem too. The icon appears in the tray, but right-clicking it doesn't bring up a menu. In xfce, for example, everything is fine. What can I do about it? the problem was and is on any modern version kde (