Upgrade from Struts1.1 to Struts1.3.8- UnknownHostException: java.sun.com

Recently I have upgraded from Struts 1.1 to Struts 1.3.8. I get the following exception during server-startup.( when I run Resin 3.1.3 -with out internet access). My Server starts successfully without any Struts issues if I've internet access. I checked for all the DTDs/XSDs & TLD files which hav

javax.servlet.UnavailableException: java.net.UnknownHostException: java.sun.com at org.apache.struts.action.ActionServlet.init(ActionServlet.java:408)

Recently I have upgraded from Struts 1.1 to Struts 1.3.8. I get the following exception during server-startup.( when I run Resin 3.1.3 -with out internet access). My Server starts successfully without any Struts issues if I've internet access. I checked for all the DTDs/XSDs & TLD files which hav