Jetty :: Jasper :: Project
· A rebundling of Apache Tomcat Jasper to remove the tomcat server dependencies,
so that the JSP engine can be used by the Eclipse Jetty project.
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 jasper-jsp-10.1.7.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.