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

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_________________________________________________
Jacob Rhoden
Application Architect
Systems Development and Integration
University of Melbourne

Phone: +61 3 8344 2884



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