opencredo-esper-parent
· The OpenCredo Esper project builds on top of the excellent Complex Event Stream processing project Esper, see http://esper.codehaus.org.
Primarily motivated by a desire to make using Esper easier within messaging applications built on Spring Integration.
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 opencredo-esper-parent-2.1.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.