Hi there,
I'm having a problem where certain actions are being executed twice when
a user follows a link. I'm hoping somebody has some input on this, or
some suggestions on how I can figure it out.
I'm running Struts 1.1, Tomcat 5.0.28, J2SE 1.4.2_05 and Fedora Core 2.
As far as I can see this only happens on http posts, not gets. I thought
I had also narrowed it down to only happening on actions that are
straight off the application context (/app/action.do), but I've managed
to find some actions that are off the root of the application but do not
exhibit this behavior. I'm going directly to Tomcat on port 8080 to
avoid any problems with Apache connectors and the like.
The simplest example I can give of this is:
<action path="/home"
type="actions.WelcomeAction">
<forward name="success" path="/WEB-INF/pages/home.jsp"/>
</action>
WelcomeAction logs the fact that it was executed and then:
return (mapping.findForward("success"));
When I look in the log file the message gets logged twice. Most of the
time the action is being executed by two different threads, but I have
seen the same thread handle both executions.
Initially I thought it was possible that some part of my code was
calling the execute again, but if I create a stack dump within the
action both stack dumps are identical except for time stamp and thread.
I have my own RequestProcessor class that overrides the standard Struts
one in order to perform authorization checking, but if I remove it from
the Struts config file I still get the same results.
Thus far I haven't been able to replicate the problem using a standard
servlet.
Any suggestions on where I can start looking? BTW, I'm not in a position
to upgrade to Struts 1.2.x at this stage.
Thanks,
Owen Berry
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