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https://issues.apache.org/jira/browse/CLI-173?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12641344#action_12641344
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Hendrik Maryns commented on CLI-173:
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I forgot to tell that the problem with the validators is the reason why it is
impossible to generify one of the most important functions in the library:
getValues() and its derivatives. The logical solution would be to make it a
List<String>, but through the validators, it can suddenly start emitting
List<Class<?>> etc.
I would suggest to make it a List<String> and also have getValue() return a
String.
We could then have another interface TransformingCommandLine<F,T> which
introduces a method getAndTransformValues() which would return a List<T>.
Haven't thought it through yet, input welcome.
In any case can the patch be applied now without any consequences (that is,
maybe you'll want to change the part regarding pom.xml and some other files,
but the Java part is safe).
Oh, and we should then of course update the documentation too.
> Upgrade to Java 5 features
> --------------------------
>
> Key: CLI-173
> URL: https://issues.apache.org/jira/browse/CLI-173
> Project: Commons CLI
> Issue Type: Improvement
> Components: CLI-2.x
> Affects Versions: 2.1
> Reporter: Hendrik Maryns
> Attachments: generics.patch
>
>
> Java 5 is end-of-life, and there are no generics to be seen in Commons. What
> a shame. Anyway, Collections is going there, let's do it here as well. And
> while we're at it, introduce annotations and the like.
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