Spring ME
· A version of Spring that not only has a very small runtime
footprint (none), but also is capable of running on small handheld
devices, since it does not rely on reflection.
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 spring-me-1.0.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.