Are you submitting a "page" value with your form? Maybe you need something
like
<html:hidden property="page" value="3"/>
on your form
or just a straight <input type="hidden">
Niall
----- Original Message -----
From: "Assaf Nehoray" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Friday, June 25, 2004 1:17 PM
Subject: DynaValidatorActionForm.validate(DynaValidatorActionForm.java:115)
> Dear user group,
>
> I am having this constant exception thrown several
> times a day. I am not able to reproduce it but I know
> my visitors get it:
>
> 2004-06-24 18:45:00 StandardWrapperValve[action]:
> Servlet.service() for servlet action threw exception
> java.lang.NullPointerException
> at
>
org.apache.struts.validator.DynaValidatorActionForm.validate(DynaValidatorAc
tionForm.java:115)
> at
>
org.apache.struts.action.RequestProcessor.processValidate(RequestProcessor.j
ava:942)
> at
>
org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:255)
> at
> org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482)
> at
> org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:507)
> 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(Application
FilterChain.java:247)
> at
>
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh
ain.java:193)
> at
>
com.mycompany.clickstream.ClickstreamFilter.doFilter(ClickstreamFilter.java:
42)
> at
>
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application
FilterChain.java:213)
> at
>
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh
ain.java:193)
> at
>
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.ja
va:256)
> at
>
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
eNext(StandardPipeline.java:643)
> at
>
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
> at
> org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
> at
>
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.ja
va:191)
> at
>
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
eNext(StandardPipeline.java:643)
> at
>
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase
.java:492)
> at
>
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
eNext(StandardPipeline.java:641)
> at
>
org.apache.catalina.valves.RequestFilterValve.process(RequestFilterValve.jav
a:343)
> at
>
org.apache.catalina.valves.RemoteAddrValve.invoke(RemoteAddrValve.java:131)
> at
>
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
eNext(StandardPipeline.java:641)
> at
> org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:577)
> at
>
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
eNext(StandardPipeline.java:641)
> at
>
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
> at
> org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
> at
> org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2422)
> at
>
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180
)
> at
>
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
eNext(StandardPipeline.java:643)
> at
>
org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.
java:171)
> at
>
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
eNext(StandardPipeline.java:641)
> at
>
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:163
)
> at
>
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
eNext(StandardPipeline.java:641)
> at
>
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
> at
> org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
> at
>
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java
:174)
> at
>
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
eNext(StandardPipeline.java:643)
> at
>
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
> at
> org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
> at
> org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:199)
> at
> org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:828)
> at
>
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConne
ction(Http11Protocol.java:700)
> at
> org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:584)
> at
>
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.jav
a:683)
> at java.lang.Thread.run(Thread.java:534)
>
> I am using a wizard like form (several pages). The
> only clue I have is that I do not get this error on
> pages in which the validator does not use the "page"
> attribute. On multiple page forms I get this error.
>
> Anyone with a suggestion as how to solve it or further
> look into it?
>
> Thanx,
>
> Assaf
>
>
>
>
>
> __________________________________
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