[jboss-jira] [JBoss JIRA] Created: (JBAS-4854) Duplicate Content-Type charset attribute causes exception

[Joni Niemi (JIRA)]

Duplicate Content-Type charset attribute causes exception
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                 Key: JBAS-4854
                 URL: http://jira.jboss.com/jira/browse/JBAS-4854
             Project: JBoss Application Server
          Issue Type: Bug
      Security Level: Public (Everyone can see)
          Components: Web (Tomcat) service
    Affects Versions: JBossAS-4.2.1.GA
         Environment: Windows XP, JBOSS AS 4.2.1.GA
            Reporter: Joni Niemi
         Assigned To: Remy Maucherat


New maemo Mozilla browser has a "feature" which sends duplicate charset parameter in the POST Content-type header. This causes following exception:

java.io.UnsupportedEncodingException: UTF-8;charset=UTF-8
	at java.lang.StringCoding.decode(StringCoding.java:170)
	at java.lang.String.<init>(String.java:444)
	at java.lang.String.<init>(String.java:516)
	at org.apache.catalina.connector.Request.setCharacterEncoding(Request.java:1469)
	at org.apache.catalina.connector.RequestFacade.setCharacterEncoding(RequestFacade.java:307)
	at com.sun.faces.context.ExternalContextImpl.setRequestCharacterEncoding(ExternalContextImpl.java:167)
	at javax.faces.application.ViewHandler.initView(ViewHandler.java:259)
	at org.ajax4jsf.application.ViewHandlerWrapper.initView(ViewHandlerWrapper.java:138)
	at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:208)
	at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:117)
	at javax.faces.webapp.FacesServlet.service(FacesServlet.java:244)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:141)
	at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:281)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
	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:230)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
	at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:179)
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:525)
	at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104)
	at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
	at com.jamonapi.http.JAMonTomcatValve.invoke(JAMonTomcatValve.java:72)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:241)
	at org.apache.coyote.ajp.AjpAprProcessor.process(AjpAprProcessor.java:419)
	at org.apache.coyote.ajp.AjpAprProtocol$AjpConnectionHandler.process(AjpAprProtocol.java:393)
	at org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1513)
	at java.lang.Thread.run(Thread.java:619)

The erraneous* Content-Type header causing this is 
"Content-Type: application/x-www-form-urlencoded; charset=UTF-8;charset=UTF-8" 
("User-agent: Mozilla/5.0 (X11; U; Linux armv6l; en-GB; rv:1.9a6pre) Gecko/20070810
Firefox/3.0a1 Tablet browser 0.1.16 RX-34_2007SE_4.2007.38-2")

Windows version of Mozilla causes no problems:
"Content-Type: application/x-www-form-urlencoded; charset=UTF-8" 
(User-agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; fi; rv:1.8.1.7) Gecko/20070914
Firefox/2.0.0"

* I don't think RFC2616 strictly speakings prohibits duplicate attributes.

This seems to be Catalina issue, but I don't know which version JBOSS AS 4.2.1.GA is using, so I'm submitting this here.

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