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I wanted to try out the Apache Commons CLI, and figured a good place to start would be the 'usage' section on its web page.

http://commons.apache.org/proper/commons-cli/usage.html

Now, the example suggest to create a DefaultParser , however the closest sounding I could find is BasicParser . Is this the thing to use, am I missing something?

I used GnuParser() instead of DefaultParser() and it works well.
CommandLineParser parser = new GnuParser();
Update : In version 1.3.1 of CLI, GnuParser() is now deprecated. So I simply added

import org.apache.commons.cli.DefaultParser;

and now I use CommandLineParser parser = new DefaultParser();

And all is fine!

I've encountered the same problem while following same usage guide with commons-cli 1.2 and found the following available parsers:

They all extends the org.apache.commons.cli.Parser and only implement the flatten method. You can check Parser's javadoc (and implementing parsers) for more information.

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