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From "Bill Barker" <wbar...@wilshire.com>
Subject Re: Strante tomcat warning - WARNING: Parameters: Character decoding failed. Parameter skipped.
Date Thu, 25 Oct 2007 02:03:18 GMT
Well, what it means is that Tomcat saw a '%' character in either the query 
string or the POST body that wasn't followed by two two hex digits (0-9 
union a-f).  It is possible that it is simply a character encoding problem, 
but there isn't enough info here to really say what the problem is.

"Jacob Rhoden" <jacob@rhoden.id.au> wrote in message 
news:471FDF89.3080005@rhoden.id.au...
> Hi,
>
> We are having an elusive issue on one of our production servers using 
> Tomcat 6.0.14, every few minutes we are getting a request that results in 
> the following exception:
>
> Oct 25, 2007 12:04:23 AM org.apache.tomcat.util.http.Parameters 
> processParameters
> WARNING: Parameters: Character decoding failed. Parameter skipped.
> java.io.CharConversionException: isHexDigit
>        at org.apache.tomcat.util.buf.UDecoder.convert(UDecoder.java:88)
>        at org.apache.tomcat.util.buf.UDecoder.convert(UDecoder.java:49)
>        at 
> org.apache.tomcat.util.http.Parameters.urlDecode(Parameters.java:412)
>        at 
> org.apache.tomcat.util.http.Parameters.processParameters(Parameters.java:394)
>        at 
> org.apache.tomcat.util.http.Parameters.processParameters(Parameters.java:346)
>        at 
> org.apache.catalina.connector.Request.parseParameters(Request.java:2470)
>        at 
> org.apache.catalina.connector.Request.getParameter(Request.java:1040)
>        at 
> org.apache.catalina.connector.RequestFacade.getParameter(RequestFacade.java:355)
>        ......
>
> Has anyone seen anything like this before, and know how to handle it? It 
> appears Firefox 2.0.0.8 browsers and IE browsers are both passing POST 
> commands that are resulting in this exception.
>
> A quick search on google reveals a bunch of other people who dont know 
> what it is, and well, the source code that throws the exception.
>
> Best Regards,
> Jacob
>
> -- 
> _________________________________________________
> Jacob Rhoden
> Application Architect
> Systems Development and Integration
> University of Melbourne
>
> Phone: +61 3 8344 2884
>
>
>
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> 




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