genericconnector
· A generic JCA resource adapter capable of binding e.g. web services into JTA transactions. See https://github.com/maxant/genericconnector.git
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 genericconnector-parent-2.1.0.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.