The GlassFish Server supports iterative development. Whenever you make a change to a Java EE application, you must redeploy the application.
To modify a class file in an enterprise bean, you change the source code, recompile it, and redeploy the application. For example, if you want to change the exchange rate in the dollarToYen business method of the ConverterBean class, you would follow these steps.
To modify ConverterServlet, the procedure is the same.
Edit ConverterBean.java and save the file.
Recompile the source file.