Apache Royale: Framework: Archetypes: Jewel Royale Library
· Maven archetype for creating Royale Maven project for building a Jewel Royale library for JavaScript output.
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 royale-jewel-library-archetype-0.9.10.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.