AWS Java SDK :: SDK Bundle
· A single bundled dependency that includes all service and dependent JARs with third-party libraries
relocated to different namespaces.
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 bundle-sdk-2.21.41.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.