[Shell] Exception Handling
---------------------------
Key: HAMA-89
URL: https://issues.apache.org/jira/browse/HAMA-89
Project: Hama
Issue Type: Improvement
Components: shell
Reporter: Edward J. Yoon
Fix For: 0.1.0
Hama > exit
org.apache.hama.shell.parser.script.ParseException: Encountered "exit" at line
3, column 1.
Was expecting one of:
<EOF>
"help" ...
"quit" ...
"" ...
<EOL> ...
It would be nice if shell shows simple guide instead of error message.
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