Jackson java.time module
· An apache karaf feature repository containing a feature that loads the jackson java.time module supporting serialization and deserialization of java.time classes (e.g. Year, Month)
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 jackson-java-time-module-1.9.6.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.