Java EE (Java Enterprise Edition) General Discussion

The error message is below. What's the problem? How to sort it out? Thanks.



HTTP Status 500 -

--------------------------------------------------------------------------------

type Exception report

message

description The server encountered an internal error () that prevented it from fulfilling this request.

exception

javax.servlet.ServletException
org.apache.struts.action.RequestProcessor.processException(RequestProcessor.java:545)
org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:486)
org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:274)
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1480)
org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:524)
javax.servlet.http.HttpServlet.service(HttpServlet.java:709)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
test.filters.SetCharacterEncodingFilter.doFilter(Unknown Source)


root cause

java.lang.NullPointerException
test.getrole.getr(Unknown Source)
test.PCAction.execute(Unknown Source)
org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:484)
org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:274)
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1480)
org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:524)
javax.servlet.http.HttpServlet.service(HttpServlet.java:709)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
test.filters.SetCharacterEncodingFilter.doFilter(Unknown Source)