[jira] [Commented] (STANBOL-437) Annoying WARNING about manipulated requests by Servlet filter

["Rupert Westenthaler (Commented) (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/STANBOL-437?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13174951#comment-13174951 ] 

Rupert Westenthaler commented on STANBOL-437:
---------------------------------------------

This is because of the Filter introduced for STANBOL-401. I have seen this as well have looked into it on more detail and come to the conclusion that is save.

Quote from the first resource linked below:
> It is informing you that the request entity of media type "application/
> x-www-form-urlencoded" has been consumed by the Servlet layer,  
> probably by a servlet filter when one of the methods  
> ServletRequest.getParameter* is called.
> 
> Servlet does not distinguish between query parameters and form  
> parameters when parameters are obtained. So if a form-based request  
> entity is present and parameters are obtained it will consume that  
> entity thus leaving Jersey with no entity to consume. So Jersey can  
> only keep on working in this respect using @FormParam in conjunction  
> with the Servlet parameters.
> 
> Jersey cannot reliably construct bytes of the request entity because  
> query and form parameters are merged together into the servlet  
> parameters.

Here are some links to additional information:

* http://jersey.576304.n2.nabble.com/Jersey-log-message-re-form-parameters-being-consumed-quot-earlier-quot-td4055003.html
* http://jersey.576304.n2.nabble.com/Log-warnings-td4280745.html
* 
                
> Annoying WARNING about manipulated requests by Servlet filter
> -------------------------------------------------------------
>
>                 Key: STANBOL-437
>                 URL: https://issues.apache.org/jira/browse/STANBOL-437
>             Project: Stanbol
>          Issue Type: Bug
>          Components: Entity Hub
>            Reporter: Fabian Christ
>            Assignee: Rupert Westenthaler
>              Labels: Console, Output
>
> When using Stanbol you get this warning on the console:
> A servlet POST request, to the URI http://localhost:8080/stanbol/entityhub/sites/find, contains form parameters in the request body but the request body has been consumed by the servlet or a servlet filter accessing the request parameters. Only resource methods using @FormParam will work as expected. Resource methods consuming the request body by other means will not work as expected.
> Hopefully, this is not a problem and we only need to get rid of this warning message.

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