As I already has this kind of message, I think Struts didn't succed in
executing your action so
a) check the name and package of your class (comparing to the one declared
in your struts-config file)
b) check that your class extends o.a.struts.action.Action
c) check the signature of the 'execute' method
HTH,
Thomas
At 01:16 14/11/2003, you wrote:
Hi,
Our application is using Struts1.1 and running on Tomcat4.1. We got the
following exception stack trace.
Any clues will be appreciated to fix this problem.
Thanks,
Durgaprasad
Exception Stack Trace:
--
Nov 13, 2003 12:21:37 PM org.apache.struts.action.RequestProcessor
processException
WARNING: Unhandled Exception thrown: class
java.lang.NullPointerException
StandardWrapperValve[action]: Servlet.service() for servlet action threw
exception
javax.servlet.ServletException
javax.servlet.ServletException
at
org.apache.struts.action.RequestProcessor.processException(RequestProces
sor.java:541)
at
org.apache.struts.action.RequestProcessor.processActionPerform(RequestPr
ocessor.java:482)
at
org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:
274)
at
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1420)
at
org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:502)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applica
tionFilterChain.java:247)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilt
erChain.java:193)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValv
e.java:263)
at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.i
nvokeNext(StandardPipeline.java:643)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:4
80)
at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValv
e.java:191)
at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.i
nvokeNext(StandardPipeline.java:643)
at
org.apache.catalina.authenticator.AuthenticatorBase.invoke(Authenticator
Base.java:490)
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