If it works okay after restart rather than just reload, i'd suggest it would be the container not maintaining sessions across reloads. And that I guess would be the nature of your question.
I know that tc 4.127 has this as a fix from 4.124.
Cheers Mark
On Monday, August 25, 2003, at 03:53 PM, Sasha Borodin wrote:
Howdy ya'll, I posted this Friday but no one's biting so far...
Has anyone had problems with session-scoped ActionForms being null after
(de)Serialization (context restart). I have confirmed that running
myForm.reset(...) on my ActionForm after restart throws a
NullPointerException via debugging filter I've got set up.
As soon as I try to request either action that utilizes the ActionForm, I
get problems. If I request the forward action (which just forwards to the
jsp with form tags), I get this:
----begin log
javax.servlet.ServletException: Exception thrown by getter for property
applicationDateMin of bean org.apache.struts.taglib.html.BEAN
----end log
applictionDateMin is the FIRST form element in my jsp. Suspicious?
If I request the action that processes the submitted form, I get this:
----begin log java.lang.NullPointerException at com.amfllc.web.forms.SearchPipelineActionForm.reset(Unknown Source) ----end log
Please see below for further details.
Thank you for any help.
-Sasha
On 8/22/03 17:54, "Sasha Borodin" <[EMAIL PROTECTED]> wrote:
I've been beating my head against this for a couple of days now, if someone
can help me out, that would really make my weekend :-)
I am having a problem with an ActionForm after restarting the context. Here's some details:
1. I have a jsp with struts form tags.
2. This form has an ActionForm associated with it.
3. One forward action that takes you to the jsp.
4. One custom action that processes the submission of this form (has action
form declared in action-mapping in struts-config.xml)
If I have a fresh session, and play around, the ActionForm is bound to the
session as an attribute. Everything works fine.
If I reload the context, everything appears to get Serialized successfully
(I get no exceptions anywhere, there's a SESSIONS.ser file created in the
work dir). If I check the session after reload, my ActionForm is once again
listed as one of the attributes.
-BUT-
As soon as I try to request either action that utilizes the ActionForm, I
get problems. If I request the forward action (which just forwards to the
jsp with form tags), I get this:
----begin log
javax.servlet.ServletException: Exception thrown by getter for property
applicationDateMin of bean org.apache.struts.taglib.html.BEAN
----end log
applictionDateMin is the FIRST form element in my jsp. Suspicious?
If I request the action that processes the submitted form, I get this:
----begin log java.lang.NullPointerException at com.amfllc.web.forms.SearchPipelineActionForm.reset(Unknown Source) ----end log
To a newbie like me, it looks like Struts wants to use the ActionForm bound
to the session, but it's null after context restart for some reason.
I've got a debugging filter set up that does some logging of request and
session properties - that's how I know that the form is there in session.
I've even gone as far as to check it for being null - it appears not to be
== null. I've marked all the usual suspects transient (logger, etc.).
What am I missing here? Thanks so much for any help.
-Sasha
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