MissingParameterException not thrown for missing mandatory @Parameter when options are specified

[remkop]

The pre-check in processPositionalParameters0 verifies only that there are at least as many command line arguments as there are mandatory @parameters. It does not yet know how many of these arguments will be consumed as @options.

In the Interpreter.parse(Stack) method, the final check on the requiredFields set passes because this set only contains mandatory @options, not @parameters.