Variable Arity parameters don't work with setAcceptUnknownOption(true)

Using variable arity parameters together with unknown options fails with

ParameterException: Expected a value after parameter -values

JCommander#isOption simply returns true when acceptUnknownOption is true, so DefaultVariableArity#processVariableArity always returns 0, since it thinks the arguments to the variable arity option are options.

This used to work in 1.60, where isOption checked if the option has a prefix.

Example code:

import com.beust.jcommander.JCommander;
import com.beust.jcommander.Parameter;

import java.util.List;

public class VarArity {
    @Parameter (names = "-values", variableArity = true)
    private List<String> values;
    @Parameter (names = "-foo")
    private boolean foo;
    @Parameter
    private List<String> files;

    public static void main(String[] args) {
        VarArity app = new VarArity();
        JCommander jCommander = new JCommander(app);
        jCommander.setAcceptUnknownOptions(true);
        jCommander.parse("-values", "one", "two", "-foo", "-bar", "foobar.txt");
    }
}

[paplorinc]

Are there plans to fix this?

[buzzlawless]

What does it mean to accept unknown options? I don’t see anything in the documentation about it.

Edit: Leaving an explanation here in case others see this and didn’t know: if accept unknown options is true, then passing an unknown parameter (e.g. “-bar” in the example that started this thread) will simply be ignored. If it is false, then an exception is thrown here