Why Debugging Is Tough
Server-side programs are often tougher to debug than GUI programs. Although a GUI application can be more complex in terms of code structure and callbacks, server-side applications that are hosted by an application server are more difficult to debug because they are being hosted by another program.
If you want to debug a standalone Java program, you can usually start it up in a debugger and start tracing right from the start. When you need to debug a J2EE server component (EJB, servlet, or JSP), you must find a way to use a debugger with your J2EE environment. It gets even tougher when you want to debug a JSP because you must first locate the servlet that was generated from the JSP and then debug it.
Server-side programs ...
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