[jira] [Created] (MNG-7052) Do not allow symbols as first character of identifiers in the POM

["Martin Kanters (Jira)" <ji...@apache.org>]

Martin Kanters created MNG-7052:
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             Summary: Do not allow symbols as first character of identifiers in the POM
                 Key: MNG-7052
                 URL: https://issues.apache.org/jira/browse/MNG-7052
             Project: Maven
          Issue Type: Improvement
          Components: core
            Reporter: Martin Kanters
             Fix For: 4.0.x-candidate


In the {{DefaultModelValidator}} we currently validate identifiers against {{a-zA-Z0-9-_.}} 
Since Maven also allows operators to be used against an identifier, this can result in bugs or at least unexpected behavior for the user.

The minus operator can be used to deactivate a certain profile, so an example would be:
- A project having a profile with the id {{-id-of-profile}}
- A Maven invocation of {{mvn <goal> -P-id-of-profile}}.

The release of Maven 4 is a nice opportunity to restrict the first character of an id to be {{a-zA-Z0-9}} . The other characters may still consist of those symbols.

This should apply to all identifiers that we support. The methods that need attention are:
{{DefaultModelValidator#validateId}} and {{DefaultModelValidator#validateIdWithWildcards}}.



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