TypeHandler prints messages to stderr
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Key: CLI-170
URL: https://issues.apache.org/jira/browse/CLI-170
Project: Commons CLI
Issue Type: Bug
Components: CLI-1.x
Affects Versions: 1.2
Reporter: J. Lewis Muir
Fix For: 1.2
Attachments: remove-messages-to-stderr.patch
Certain methods in {{TypeHandler}} print a message to stderr when they are
unable to create the object they are to return. I don't think this should be.
The documentation for each method clearly states that if it is unable to create
the object, it returns {{null}}. If more information should be reported to the
caller, these methods should be changed to throw an exception. I've removed
the printing of these messages from {{TypeHandler}}.
This fix also makes the unit test output clean. Right now, certain test cases
exercise the "returns {{null}}" behavior of some of the {{TypeHandler}}
methods, and this causes various error messages to be written to stderr which
makes the test case output look unclean and like something has gone wrong when
in fact everything is working correctly.
Attached is a patch for this fix. The patch is against
[http://svn.apache.org/repos/asf/commons/proper/cli/branches/cli-1.x].
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