I see that Spring Web Flow does not utilize Apache Maven as a build tool, however SpringSource does deploy a pom.xml as an artifact to its Apache Maven repositories.
This deployed pom.xml does not include any license information. It would be very useful for other tools, especially those that report on dependencies and their licenses (e.g. a Bill of Materials tool) if Spring Web Flow would provide this information in the deployed pom.xml. The name of the license and the URL of the project are both common information points to provide and are valuable to users.