Xing Framework is Free Software.
The LGPL license is sufficiently flexible to allow the use of Xing Framework in both open source and commercial projects. The LGPL guarantees that Xing Framework and any modifications made to Xing Framework will stay open source, protecting our and your work. Anyone who wanted to release Xing Framework under a different license would have to obtain permission from hundreds of people who have contributed code to Xing Framework, which would be impractical. Xing Framework is and will be open source distributed under the LGPL.
Using Xing Framework (by importing Xing Framework's public interfaces in your Java code), and extending Xing Framework (by subclassing or implementation of an extension interface) is considered by the authors of Xing Framework to be dynamic linking. Hence our interpretation of the LGPL is that the use of the unmodified Xing Framework source does not affect the license of your application code.
The use of the unmodified Xing Framework binary of course never affects the license of your application or distribution. The LGPL also forbids distribution for profit, so you will never have to pay money to any commercial entity for using or integrating Xing Framework.
If you modify Xing Framework and redistribute your modifications, the LGPL applies. Please submit any modifications to our JIRA issue tracking system.