Apache Sling System Bundle Extension: XML APIs
· Adds the XML API packages to the system bundle exports.
The list of packages is derived from the packages available
in the Java 7 platform. The system bundle exporting these
packages gives no guarantee the platform provides them.
For proper setup it is suggested to either install an
extension fragment adapted to the platform or to install
regular API packages as bundles.
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 org.apache.sling.fragment.xml-1.0.2.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.