log4javascript
· The purpose of log4javascript is to provide JavaScript developers with a familiar, robust and flexible logging framework with which to debug JavaScript applications. This is becoming increasingly important as web interfaces become richer thanks to the recent appreciation of the possibilities of Ajax.
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 log4javascript-1.3.1.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.
