Shuttle
· Shuttle provides a modern, guarded way to pass large Serializable objects with Intents or saving them in Bundle objects to avoid app crashes from TransactionTooLargeExceptions.
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 framework-integrations-extensions-room-2.0.4.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.