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From "Edward J. Yoon (JIRA)" <j...@apache.org>
Subject [jira] Created: (HAMA-90) Handling unknown command
Date Thu, 23 Oct 2008 05:18:44 GMT
Handling unknown command
------------------------

                 Key: HAMA-90
                 URL: https://issues.apache.org/jira/browse/HAMA-90
             Project: Hama
          Issue Type: Improvement
          Components: scripts 
            Reporter: Edward J. Yoon
             Fix For: 0.1.0


If we type unknown command, Usage shoulde be printed instead of NoClassDefFoundError.

----
[root@udanax hama-trunk]# bin/hama example addition -m 2 -r 1 2 2

Exception in thread "main" java.lang.NoClassDefFoundError: example
Caused by: java.lang.ClassNotFoundException: example
        at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
        at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
Could not find the main class: example.  Program will exit.

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