Spring is a Java/J2EE application framework that assembles components via configuration files. Spring is an open source project but is developed by engineers with Interface 21, and Spring Framework is a trademark of Interface 21. Spring is supported by a number of companies including Interface21 and SourceLabs, and is covered in SourceLabs Self-support Suite for Linux and Open Source Java Spring’s core technical selling point has been the Inversion of Control design idea, where programm