i get this while trying to open charon::

Nokia-N900:~# java /jar /opt/charon2.0.1-karam/CHARON_2.0.1.jar
Exception in thread "main" java.lang.NoClassDefFoundError: /jar
Caused by: java.lang.ClassNotFoundException: .jar
at java.net.URLClassLoader$1.run(URLClassLoader.java: 217)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.j ava:205)
at java.lang.ClassLoader.loadClass(ClassLoader.java:3 21)
at sun.misc.Launcher$AppClassLoader.loadClass(Launche r.java:294)
at java.lang.ClassLoader.loadClass(ClassLoader.java:2 66)
at java.lang.ClassLoader.loadClassInternal(ClassLoade r.java:334)
Could not find the main class: /jar. Program will exit.
Nokia-N900:~#