Fire :
· Fire framework is a development framework for real-time computing task development . The framework provides a simple and easy to use API that can significantly reduce the development threshold of Spark and Flink and improve development efficiency.
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 fire-parent-2.3.4.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.