Added it to Struts JIRA (WW-4904) If I set the struts.actionMapping attribute
to null it still causes the class cast exception. What I have seen is that
after setting it to null if you call
getAttribute you would still get the old ActionMapping object, not sure how
that is possible. Thanks, Prasanth
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original text]
No it's not a Struts issue. You don't see this in Struts1 because maybe
it doesn't use any object bounded to dispatched request. But Struts2
wants to
ActionMapping mapping =
(ActionMapping)request.getAttribute("struts.actionMapping");
A workaround would be removing object with key "struts.actionMapping"
from request before dispatching.
I hope this helps.
On 12/15/2017 04:54 PM, Prasanth Pasala wrote:
> Added the below two lines to my filter (before the struts2 filter) in
> context2 app. That seems to do the trick. Thought it might create a problem
> as I am setting a new ActionMapping in the request,
> but seems to work fine. Do you see any side effects of this?
>
> request.setAttribute("struts.actionMapping", new ActionMapping());
> request.setAttribute("struts.valueStack", null);
>
> Thanks,
> Prasanth
>
> On 12/15/2017 04:10 PM, Prasanth Pasala wrote:
>> It seems like removeAttribute or setAttribute is not getting rid of the
>> attribute from request. See below. If I set the value to a random string
>> then I get a String can't be cast to ActionMapping
>> exception.
>>
>> Enumeration<String> attrs = request.getAttributeNames();
>> while(attrs.hasMoreElements()) {
>> System.out.println(attrs.nextElement());
>> }
>> System.out.println(request.getAttribute("struts.actionMapping"));
>> request.setAttribute("struts.actionMapping", null);
>> System.out.println(request.getAttribute("struts.actionMapping"));
>>
>> Output:
>> 16:05:05,300 INFO [stdout] (default task-13)
>> javax.servlet.forward.context_path
>> 16:05:05,302 INFO [stdout] (default task-13)
>> javax.servlet.forward.servlet_path
>> 16:05:05,303 INFO [stdout] (default task-13)
>> javax.servlet.forward.request_uri
>> 16:05:05,303 INFO [stdout] (default task-13) javax.servlet.forward.path_info
>> 16:05:05,303 INFO [stdout] (default task-13)
>> javax.servlet.forward.query_string
>> 16:05:05,303 INFO [stdout] (default task-13) javax.servlet.request.key_size
>> 16:05:05,303 INFO [stdout] (default task-13) __cleanup_recursion_counter
>> 16:05:05,303 INFO [stdout] (default task-13)
>> javax.servlet.request.cipher_suite
>> 16:05:05,304 INFO [stdout] (default task-13) struts.valueStack
>> 16:05:05,308 INFO [stdout] (default task-13)
>> javax.servlet.request.ssl_session_id
>> 16:05:09,121 INFO [stdout] (default task-13) ActionMapping{name='Login',
>> namespace='/', method='null', extension='action', params=null, result=null}
>> 16:05:10,960 INFO [stdout] (default task-13) ActionMapping{name='Login',
>> namespace='/', method='null', extension='action', params=null, result=null}
>>
>>
>> On 12/15/2017 02:28 PM, Prasanth Pasala wrote:
>>> Thanks for the prompt response. Tried removing the attribute from the
>>> request, but still getting the class cast exception. Is it possible it is
>>> being set after I have called the forward?
>>> request.removeAttribute("struts.actionMapping"); // FORWARD THE REQUEST
>>> ServletContext sContext = context.getContext("/context2");
>>> RequestDispatcher rd =
>>> sContext.getRequestDispatcher("/Login.action"); rd.forward(request,
>>> response); [show/hide original text]
>>> No it's not a Struts issue. You don't see this in Struts1 because maybe
>>> it doesn't use any object bounded to dispatched request. But Struts2
>>> wants to
>>>
>>> ActionMapping mapping =
>>> (ActionMapping)request.getAttribute("struts.actionMapping");
>>>
>>> A workaround would be removing object with key "struts.actionMapping"
>>> from request before dispatching.
>>>
>>> I hope this helps.
>>>
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>>
>
