The java utility java.util.Enumeration can be used to list the parameter names and values “in” a framework page at run time.

Add the following code snippet to both the ProcessRequest and ProcessFormRequest methods of the page controller:

 import java.util.Enumeration;

Enumeration enums = pageContext.getParameterNames();
while(enums.hasMoreElements())
{
String paramName = enums.nextElement().toString();
// if (paramName.equalsIgnoreCase("event")){
System.out.println("Parameter Name " + paramName + " : Parameter Value " + pageContext.getParameter(paramName));
// }
} 

You can un-comment the if statement to look for specific parameter names and values.