License4J is a pure Java library for creating and validating licenses. The key concept is features of a license. You can easily add any feature to your license file, i.e. name of the product, version, expiry date, number of executable instances, customer's name, company, IP address, etc. The feature's value can be string or any serializable Java object. You can have unsigned features - features that are not used in the signature generation/verification and therefore can change their values leaving the license valid. Also the library provides methods for signing arbitrary content that should not be changed by the user.
License4J License Manager TRIAL License4J is a Java library for java software licensing. It is designed to be easy to use and integrate in your Java application. Unlike other licensing libraries it has many licensing features defined and performs validation on required features. License4J supports floating licenses. It can... Download