Below is the exception you would get if the valueStack is not set to null.
Thanks,
Prasanth
13:17:52,070 ERROR [stderr] (default task-59) Caused by:
java.lang.ClassCastException: com.opensymphony.xwork2.ognl.OgnlValueStack
cannot be cast to com.opensymphony.xwork2.util.ValueStack
13:17:52,070 ERROR [stderr] (default task-59) at
org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:546)
13:17:52,070 ERROR [stderr] (default task-59) at
org.apache.struts2.dispatcher.ng.ExecuteOperations.executeAction(ExecuteOperations.java:81)
13:17:52,070 ERROR [stderr] (default task-59) at
org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:99)
13:17:52,070 ERROR [stderr] (default task-59) at
io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
13:17:52,071 ERROR [stderr] (default task-59) at
io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
13:17:52,071 ERROR [stderr] (default task-59) at
com.xxxxxxx.xxxxxx.LoginFilter.doFilter(LoginFilter.java:46)
13:17:52,071 ERROR [stderr] (default task-59) at
io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
13:17:52,071 ERROR [stderr] (default task-59) at
io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
13:17:52,071 ERROR [stderr] (default task-59) at
io.undertow.servlet.handlers.FilterHandler.handleRequest(FilterHandler.java:84)
13:17:52,071 ERROR [stderr] (default task-59) at
io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest(ServletSecurityRoleHandler.java:62)
13:17:52,071 ERROR [stderr] (default task-59) at
io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36)
13:17:52,071 ERROR [stderr] (default task-59) at
io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
13:17:52,071 ERROR [stderr] (default task-59) at
io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
13:17:52,071 ERROR [stderr] (default task-59) at
io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
13:17:52,071 ERROR [stderr] (default task-59) at
io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:274)
13:17:52,071 ERROR [stderr] (default task-59) at
io.undertow.servlet.handlers.ServletInitialHandler.dispatchToPath(ServletInitialHandler.java:209)
13:17:52,071 ERROR [stderr] (default task-59) at
io.undertow.servlet.spec.RequestDispatcherImpl.forwardImpl(RequestDispatcherImpl.java:221)
13:17:52,071 ERROR [stderr] (default task-59) ... 128 more
On 03/01/2018 12:42 PM, Prasanth wrote:
> Sorry didn't check the website, I am not getting the emails to my inbox, will
> try to subscribe again. I will get back to you with the exception I was
> getting if you don't set the valueStack to
> null. Thanks, Prasanth
> ------------------------------------------------------------------ [show/hide
> original text]
>
> Thank you very much for your time and report!
> [show/hide original text]
>
> Hmm... so how and why `request.setAttribute("struts.valueStack", null)`
> works.
>
> That's weird and so very important to me :)
>
> Could you please see what is the type of request when you receive it in
> your second context filter? e.g. println(request.getType()) before those
> your two lines (I could see myself but maybe it will be different from
> your one!)
>
> Thanks in advance!
>
>
> On 12/18/2017 11:03 AM, Prasanth Pasala wrote:
>> 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
>> ---------------------------------------------------------------------------
>> [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.
>>
>>
>> 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.
>>>>>
>>>>> ---------------------------------------------------------------------
>>>>> To unsubscribe, e-mail: user-unsubscr...@struts.apache.org
>>>>> For additional commands, e-mail: user-h...@struts.apache.org
>>>>
>>>
>>
>
