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POUTF-8 | issue with special character on form submit | java.io.CharConversionException
 

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  1. POUTF-8 | issue with special character on form submit | java.io.CharConversionException
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    <p>I have a form where I have textbox and a submit button. I am using burp tool to change the value submitted in the form to test my server side validation.</p> <p>The server side validation works fine, unless there is a <code>%</code> character entered from the burp tool, on entering <code>%</code> character the server shows following exception.</p> <pre><code>2012-12-11 11:37:07,860 WARN [org.apache.tomcat.util.http.Parameters] (ajp-0.0.0.0-8109-19) Parameters: Character decoding failed. Parameter skipped. java.io.CharConversionException: EOF at org.apache.tomcat.util.buf.UDecoder.convert(UDecoder.java:83) at org.apache.tomcat.util.buf.UDecoder.convert(UDecoder.java:49) at org.apache.tomcat.util.http.Parameters.urlDecode(Parameters.java:429) at org.apache.tomcat.util.http.Parameters.processParameters(Parameters.java:412) at org.apache.tomcat.util.http.Parameters.processParameters(Parameters.java:363) at org.apache.catalina.connector.Request.parseParameters(Request.java:2562) at org.apache.catalina.connector.Request.getParameter(Request.java:1060) at org.apache.catalina.connector.RequestFacade.getParameter(RequestFacade.java:355) at org.displaytag.filter.ResponseOverrideFilter.doFilter(ResponseOverrideFilter.java:118) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:235) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191) at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:190) at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:92) at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.process(SecurityContextEstablishmentValve.java:126) at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.invoke(SecurityContextEstablishmentValve.java:70) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:158) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:330) at org.apache.coyote.ajp.AjpProcessor.process(AjpProcessor.java:436) at org.apache.coyote.ajp.AjpProtocol$AjpConnectionHandler.process(AjpProtocol.java:384) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447) at java.lang.Thread.run(Thread.java:662) </code></pre> <p>when i submit the form with % character, it changes it to %25 correctly, but how do i handle this server side?</p>
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