With the JavaBeans Activation Framework standard extension, developers who use Java[tm] technology can take advantage of standard services to determine the type of an arbitrary piece of data, encapsulate access to it, discover the operations available on it, and to instantiate the appropriate bean to perform said operation(s). For example, if a browser obtained a JPEG image, this framework. How to set the javamail path and classpath in windowsbit “Home Premium” include the "realtime-windowsserver.com" file that you obtained from downloading the JavaBeans Activation Framework, in your CLASSPATH. How to set the java path and classpath in windowsbit. In computer programming, JavaBeans Activation Framework, or JAF, enables developers to. determine the type of an arbitrary piece of data, encapsulate access to it, discover the operations available on it and; to instantiate the appropriate bean to perform the operation(s).