Remko Popma

FYI: For testing the difference between adding a lookup to a `CommandSpec` vs adding it to a `CommandLine` instance, there are [similar tests in `SubcommandTests`](https://github.com/remkop/picocli/blob/main/src/test/java/picocli/SubcommandTests.java#L1022).

Yes, that last example is how I intended mixins to be used. I did not anticipate command names to be reusable, I assumed that command names would be unique. Maybe...

I won’t be able to spend much time on this, if any. I’m not convinced that this is a very common requirement, but perhaps the ability to have custom annotations...

Picocli does not provide support for this, so you will have to build this in the application. One idea is to have a list of options that are considered sensitive,...

@sau3078 Does that answer your question?

Interesting, yes, I see the problem. When `validate = true`, you get this error: ``` Error: expected only one match but got [[--a-str=] [--a-bool=]]={--a-str=asdf --a-bool=true} [[--b-bool=]]={--b-bool=true} and [[--a-str=] [--a-bool=]]={--a-bool=true} ```...

But I agree that this is not very nice. The issue is really, that groups are not just cosmetic, even if your intention is to only use groups for the...

Away from my PC now, but the `picocli-examples` directory in the project has a `customhelp` subdirectory that may be useful. To get custom sections without ArgGroups you may need to...

@bentatham Do you feel like providing a pull request for this?

Note that the `Class.getPackage` method returns a `Package` object that is populated with information from the manifest (the `/META-INF/MANIFEST.MF` file in the jar file). If the `Class` that is being...