gvNIX - Parent - Optimistic Concurrency Control
· JPA Optimistic Control for Spring Roo. For those applications that starts with an unmodifiable schema and the tables don't have the column 'version' for concurrency control.
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.gvnix.occ.roo.addon-1.5.1.RC4.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.