You can make use of JSTL tags to write an error page ShowError.jsp with better structure and more information ?

   
      
   
   
      
Opps...
      

                                                                                                                                                                                 

Error:	${pageContext.exception}
URI:	${pageContext.errorData.requestURI}
Status code:	${pageContext.errorData.statusCode}
Stack trace:	${trace}

   

Access the main.jsp, the following will be generated ?

Opps...

Error:	java.lang.RuntimeException: Error condition!!!
URI:	/main.jsp
Status code:	500
Stack trace:	org.apache.jsp.main_jsp._jspService(main_jsp.java:65) org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:68) javax.servlet.http.HttpServlet.service(HttpServlet.java:722) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:265) javax.servlet.http.HttpServlet.service(HttpServlet.java:722)