License4J is a total solution for software product licensing. It provides Java libraries and GUI tools for generating and validating license keys, license text, and floating license files. It is designed to be easy to use and integrate in your application. A License Manager GUI is provided for generating and storing licenses, and a Floating License Server can host and serve created floating licenses. An Online.License4J System allows single or multiple license activations to be defined. It also supports license generation through HTTP post either from a payment processor or a custom script.

Changes:
Many GUI enhancements, like a customizable license table. A license test feature that tests a generated license and gives related source code. New auto license generation payment processors (avangate,fastspring). Auto License Generation and Activation Server can be configured with the License Manager GUI. You can back up a product with all templates, auto license generation settings, licenses, and activation, then restore the product to the same or a different database. Licenses can be exported to CSV files.

URL:
License4J – Freecode

License4J 4.1-0616_license4j_4.1.gif