cara, tenta fazer o seguinte:
java -jar nome_do_programa.jar
acredito que isso resolva o seu problema.
[]s
Evaldo
Amigão, olha o que aconteceu:
ricardo@r-ubuntu:~/Temporarios$ java -jar JFLAP.jar
Exception in thread "main" java.awt.AWTError: Cannot load AWT toolkit: gnu.java.awt.peer.gtk.GtkToolkit
at java.awt.Toolkit.getDefaultToolkit() (/usr/lib/libgcj.so.6.0.0)
at java.awt.EventQueue.invokeLater(java.lang.Runnable) (/usr/lib/libgcj.so.6.0.0)
at javax.swing.SwingUtilities.invokeLater(java.lang.Runnable) (/usr/lib/libgcj.so.6.0.0)
at javax.swing.RepaintManager.addInvalidComponent(javax.swing.JComponent) (/usr/lib/libgcj.so.6.0.0)
at javax.swing.JComponent.revalidate() (/usr/lib/libgcj.so.6.0.0)
at javax.swing.JComponent.setOpaque(boolean) (/usr/lib/libgcj.so.6.0.0)
at javax.swing.JPanel.JPanel(java.awt.LayoutManager, boolean) (/usr/lib/libgcj.so.6.0.0)
at javax.swing.JPanel.JPanel() (/usr/lib/libgcj.so.6.0.0)
at javax.swing.JRootPane.createGlassPane() (/usr/lib/libgcj.so.6.0.0)
at javax.swing.JRootPane.getGlassPane() (/usr/lib/libgcj.so.6.0.0)
at javax.swing.JRootPane.JRootPane() (/usr/lib/libgcj.so.6.0.0)
at javax.swing.JFrame.createRootPane() (/usr/lib/libgcj.so.6.0.0)
at javax.swing.JFrame.getRootPane() (/usr/lib/libgcj.so.6.0.0)
at javax.swing.JFrame.frameInit() (/usr/lib/libgcj.so.6.0.0)
at javax.swing.JFrame.JFrame(java.lang.String) (/usr/lib/libgcj.so.6.0.0)
at gui.action.NewAction$NewDialog.NewAction$NewDialog() (Unknown Source)
at gui.action.NewAction.showNew() (Unknown Source)
at JFLAP.main(java.lang.String[]) (Unknown Source)
at gnu.java.lang.MainThread.call_main() (/usr/lib/libgcj.so.6.0.0)
at gnu.java.lang.MainThread.run() (/usr/lib/libgcj.so.6.0.0)
Caused by: java.lang.ClassNotFoundException: gnu.java.awt.peer.gtk.GtkToolkit not found in gnu.gcj.runtime.SystemClassLoader{urls=[file:JFLAP.jar,file:./], parent=gnu.gcj.runtime.ExtensionClassLoader{urls=[], parent=null}}
at java.net.URLClassLoader.findClass(java.lang.String) (/usr/lib/libgcj.so.6.0.0)
at java.lang.ClassLoader.loadClass(java.lang.String, boolean) (/usr/lib/libgcj.so.6.0.0)
at java.lang.ClassLoader.loadClass(java.lang.String) (/usr/lib/libgcj.so.6.0.0)
at java.lang.Class.forName(java.lang.String, boolean, java.lang.ClassLoader) (/usr/lib/libgcj.so.6.0.0)
at java.lang.Class.forName(java.lang.String) (/usr/lib/libgcj.so.6.0.0)
at java.awt.Toolkit.getDefaultToolkit() (/usr/lib/libgcj.so.6.0.0)
...19 more
parou aí...
alguma solução?