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 create
floating licenses and serve with free floating license
server software.

License4J can generate license files and serial
numbers with secure cryptographic methods. License
files includes features listed below and can be plain
text or encrypted to hide content from customers.
Serial numbers can be generated based on a customer
name or company or both; or completely not based on
anything.

License4J comes with License Manager and Serial Number
Manager GUI applications to generate and store
software license files and cryptographically secure
serial numbers.

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