Error pages allow you to customize the response that the server sends to Web clients when an error occurs. You can specify HTML files to send in response to HTTP error codes and to Java exceptions thrown in JSPs or servlets. You can also define error pages at the server level. If your Web application does not specify an error page, EAServer invokes the corresponding server-level error page.
When an exception is thrown, the servlet engine searches the error page mappings for the exception and its super classes. For example, assume AException extends BException and BException extends CException and CException extends java.lang.Exception. When AException is thrown, EAServer checks if AException is mapped. If not, EAServer checks if BException is mapped, and so forth.
