basanta@comp3:~$ java -jar mt504.jar
Exception in thread "main" java.awt.AWTError: Cannot load AWT toolkit: gnu.java.awt.peer.gtk.GtkToolkit
   at java.awt.Toolkit.getDefaultToolkit(libgcj.so.7)
   at java.awt.GraphicsEnvironment.getLocalGraphicsEnvironment(libgcj.so.7)
   at java.awt.Window.<init>(libgcj.so.7)
   at java.awt.Frame.<init>(libgcj.so.7)
   at javax.swing.JFrame.<init>(libgcj.so.7)
   at org.mozillatranslator.gui.MainWindow.<init>(MainWindow.java:46)
   at org.mozillatranslator.kernel.Kernel.startWindow(Kernel.java:103)
   at org.mozillatranslator.kernel.Program.main(Program.java:53)
Caused by: java.lang.ClassNotFoundException: gnu.java.awt.peer.gtk.GtkToolkit
   at java.lang.Class.forName(libgcj.so.7)
   at java.lang.Class.forName(libgcj.so.7)
   at java.awt.Toolkit.getDefaultToolkit(libgcj.so.7)
   ...7 more
basanta@comp3:~$