An IParametersValidator on an ParametersDelegate should not be lifted to the top-level object #575
Description
Take the following example:
@Parameters(parametersValidators = MyValidator.class)
static final class SubGroup {
@Parameter(names = "--arg1")
private boolean arg1;
@Parameter(names = "--arg2")
private String arg2;
}
static final class ArgsTop {
@Parameter(names = "--argtop")
private boolean argtop;
@ParametersDelegate
private SubGroup subGroup = new SubGroup();
}
public static void main(String[] args) {
var args = new ArgsTop();
JCommander.newBuilder().addObject(args).build(); // MyValidator::validate invoked reflectively here.
}
When MyValidator::validate is invoked, it should only see entries for arg1 and arg2, not argtop.
This would make it much easier to implement generic mutex groups. I think it would also be more intuitive.