JavaBeans Activation Framework
· The javax.activation package. It is appropriate for inclusion in a classpath, and may be added to a Java 2 installation.
Download JD-GUI to open JAR file and explore Java source code file (.class .java)
Click menu "File → Open File..." or just drag-and-drop the JAR file in the JD-GUI window activation-1.0.2.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.
