Applet Runner Pro is a commercial software.

You need a user license per user of the software. The same user license can
be used on 2 computers if the same physical person is the main user of the
software on both computers. For example having the software on a professional 
and a personal computer. Also one user license can be used by multiple physical
persons if used on the same physical personal computer.

It is not allowed to use Applet Runner Pro or its data in a SaaS (Software as a
Service) or as a library of another software.

THIS SOFTWARE IS PROVIDED "AS IS" AND WITHOUT WARRANTIES WHETHER EXPRESSED 
OR IMPLIED. THE AUTHOR SHALL NOT BE LIABLE FOR ANY DAMAGE RESULTING OF THE
USE OF Applet Runner Pro.

It's prohibited to decompile the code.

Applet Runner Pro is released with libraries which have other licenses.
The list of the libraries and their licenses are listed in 
Help -> About -> Licenses -> Third-Party libraries.