Jajuk fails to launch API on KDE4 Arch Linux.

[bflorat]

Reported by einhard on 11 Jun 2010 08:33 UTC I used sources,jar installer, rpm package and got the same result. Version 1.8.4 works fine for me. My system: 64bit Arch Linux, KDE 4.4.4. My jre is in /opt/java/

Log: [_JAJUK_ INFO Version: 1.9RC4 2010/06/11 10:03:16 [---------------------------------------------------------------------------- main (Main.java:111) 2010/06/11 10:03:16 [Starting Jajuk 1.9RC4 Build: 2010/06/11 09:51 main (Main.java:112) 2010/06/11 10:03:16 [Register: "PARAMETERS_CHANGE" by: org.jajuk.ui.helpers.FontManager@e3a1ec6 main (ObservationManager.java:70) java.lang.UnsupportedOperationException: Desktop API is not supported on the current platform at java.awt.Desktop.getDesktop(Desktop.java:126) at org.jajuk.util.UtilSystem.isBrowserSupported(UtilSystem.java:1261) at org.jajuk.ui.actions.ActionManager.(ActionManager.java:129) at org.jajuk.ui.actions.ActionManager.getInstance(ActionManager.java:60) at org.jajuk.services.startup.StartupGUIService$6.run(StartupGUIService.java:174) at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209) at java.awt.EventQueue.dispatchEvent(EventQueue.java:597) at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269) at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161) at java.awt.EventDispatchThread.run(EventDispatchThread.java:122) 2010/06/11 10:03:19 [(106) Uncaught exception AWT-EventQueue-0 (StartupGUIService.java:223) java.lang.UnsupportedOperationException: Desktop API is not supported on the current platform at java.awt.Desktop.getDesktop(Desktop.java:126) at org.jajuk.util.UtilSystem.isBrowserSupported(UtilSystem.java:1261) at org.jajuk.ui.actions.ActionManager.(ActionManager.java:129) at org.jajuk.ui.actions.ActionManager.getInstance(ActionManager.java:60) at org.jajuk.services.startup.StartupGUIService$6.run(StartupGUIService.java:174) at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209) at java.awt.EventQueue.dispatchEvent(EventQueue.java:597) at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269) at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161) at java.awt.EventDispatchThread.run(EventDispatchThread.java:122) 2010/06/11 10:03:19 [DBus not available / java.lang.UnsatisfiedLinkError: no unix-java in java.library.path Startup Async After Collection Load Thread (StartupAsyncService.java:100) java.lang.Exception: DBus not available at org.jajuk.services.dbus.DBusManager.connect(DBusManager.java:51) at org.jajuk.services.startup.StartupAsyncService$1.run(StartupAsyncService.java:96) Caused by: java.lang.UnsatisfiedLinkError: no unix-java in java.library.path at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1734) at java.lang.Runtime.loadLibrary0(Runtime.java:823) at java.lang.System.loadLibrary(System.java:1028) at cx.ath.matthew.unix.UnixSocket.(UnixSocket.java:33) at org.freedesktop.dbus.Transport.connect(Unknown Source) at org.freedesktop.dbus.Transport.(Unknown Source) at org.freedesktop.dbus.DBusConnection.(Unknown Source) at org.freedesktop.dbus.DBusConnection.getConnection(Unknown Source) at org.jajuk.services.dbus.DBusSupportImpl.connect(DBusSupportImpl.java:90) at org.jajuk.services.dbus.DBusManager.connect(DBusManager.java:48)

[bflorat]

Commented by einhard on 11 Jun 2010 17:48 UTC I get rid of "[ERROR] DBus not available" by copying libunix-java.so from jajuk install directory to my jre lib folder /opt/java/jre/lib/amd64/.

Other error is probably related to lack of KDE support in java.awt.Desktop class. On my platform (KDE4) isBrowserSupported returns true where i think it should false.

I forgot to mention: java version "1.6.0_20" Java(TM) SE Runtime Environment (build 1.6.0_20-b02) Java HotSpot(TM) 64-Bit Server VM (build 16.3-b01, mixed mode)

[bflorat]

Commented by bflorat on 11 Jun 2010 19:55 UTC Yep, this is a Sun bug, see #1612 for more.

[bflorat]

Commented by einhard on 11 Jun 2010 21:58 UTC I don't think it's the same issue as not openning external browser because Jajuk GUI doesn't launch thanks to this bug and i can't do anything. It's similar to crash although java process is still active. As I mentioned before version 1.8.4 works fine, so changes in org.jajuk.util.UtilSystem?.isBrowserSupported or some other workaround should help. Jajuk 1.9RC4 will probably crash on every KDE system from this bug.

[bflorat]

Commented by einhard einhard7@gmail.com on 13 Jun 2010 23:10 UTC I checked code and adding one condition solves crash on KDE and Sun Java. isBrowserSupported should look like this:

public static boolean isBrowserSupported() { if (GraphicsEnvironment.isHeadless()) { return false; } else { if (Desktop.isDesktopSupported()) { return (Desktop.getDesktop().isSupported(Desktop.Action.BROWSE)); } else { return false; } } }

[bflorat]

Commented by einhard einhard7@gmail.com on 13 Jun 2010 23:16 UTC

 public static boolean isBrowserSupported() {
    if (GraphicsEnvironment.isHeadless()) {
      return false;
    } else {
        if (Desktop.isDesktopSupported()) {
          return (Desktop.getDesktop().isSupported(Desktop.Action.BROWSE));
        } else {
            return false;
        }
    }
  }

[bflorat]

Commented by bflorat on 14 Jun 2010 10:50 UTC All right, thx for the patch, I'll apply it along with another fix : We now handle properly KDE environments : thx aps command lookin for kdeinit, we now detect KDE desktops and we return false to isBrowserSupported.

Checked in against trunk.