License4J License Manager

License4J License Manager supports the generation of license text, license key, and floating license text. This solution stores all products, templates, licenses, and settings in a database. The database can be on a local embedded Derby database or on database servers such as: MySQL, PostgreSQL, and Microsoft SQL Server.  The License4J runtime library includes the necessary methods to validate and activate a license. It is a free library and is distributed within any software product for license validation and activation.