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List:       xmlrpc-dev
Subject:    Re: "Content is not allowed in prolog" Problem
From:       Don Albertson <dga12 () psu ! edu>
Date:       2008-02-06 13:11:18
Message-ID: 47A9B1F6.1080307 () psu ! edu
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Mirco Musolesi wrote:
> Hello,
> 
> we are using XML-RPC on mobile phones connected to an Apache+Tomcat 5.5 server.
> 
> The mobile phones are running kXMLRPC
> (http://kxmlrpc.sourceforge.net/). We get an error on the server
> (please note from time to time and not for all the requests - and
> usually with "bursts" of subsequent errors) saying "Error while
> performing request org.apache.xmlrpc.XmlRpcException: Failed to parse
> XML-RPC request: Content is not allowed in prolog."
> 
> Please find below the log of the error. Any help is very appreciated.
> 
> Thanks,
> Mirco
> 
> ------------------------------------------------------------------------
> 
> Feb 5, 2008 3:10:28 PM org.apache.xmlrpc.server.XmlRpcStreamServer execute
> SEVERE: execute: Error while performing request
> org.apache.xmlrpc.XmlRpcException: Failed to parse XML-RPC request:
> Content is not allowed in prolog.
> at org.apache.xmlrpc.server.XmlRpcStreamServer.getRequest(XmlRpcStreamServer.java:66)
>  at org.apache.xmlrpc.server.XmlRpcStreamServer.execute(XmlRpcStreamServer.java:190)
>  at org.apache.xmlrpc.webserver.XmlRpcServletServer.execute(XmlRpcServletServer.java:104)
>  at org.apache.xmlrpc.webserver.XmlRpcServlet.doPost(XmlRpcServlet.java:191)
> at cenceMeServer.Test1.doPost(Test1.java:35)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:710)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
> at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
>  at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
>  at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
>  at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:174)
>  at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
> at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
> at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)
>  at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:151)
> at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:874)
> at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665)
>  at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528)
>  at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81)
>  at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689)
>  at java.lang.Thread.run(Thread.java:619)
> Caused by: org.xml.sax.SAXParseException: Content is not allowed in prolog.
> at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1231)
>  at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(SAXParserImpl.java:522)
>  at org.apache.xmlrpc.server.XmlRpcStreamServer.getRequest(XmlRpcStreamServer.java:60)
>                 
> ... 20 more
> Caused by:
> org.xml.sax.SAXParseException: Content is not allowed in prolog.
> at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1231)
>  at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(SAXParserImpl.java:522)
>  at org.apache.xmlrpc.server.XmlRpcStreamServer.getRequest(XmlRpcStreamServer.java:60)
>  at org.apache.xmlrpc.server.XmlRpcStreamServer.execute(XmlRpcStreamServer.java:190)
>  at org.apache.xmlrpc.webserver.XmlRpcServletServer.execute(XmlRpcServletServer.java:104)
>  at org.apache.xmlrpc.webserver.XmlRpcServlet.doPost(XmlRpcServlet.java:191)
> at cenceMeServer.Test1.doPost(Test1.java:35)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:710)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
> at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
>  at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
>  at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
>  at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:174)
>  at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
> at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
> at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)
>  at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:151)
> at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:874)
> at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665)
>  at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528)
>  at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81)
>  at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689)
>  at java.lang.Thread.run(Thread.java:619)
> 
> 
I have run across the same error message once or twice in the past.
As I recall, there was a problem with the xml -- something really picky 
like having encoding=UTF-8 instead of utf-8
dga

-- 
This is an election year.  By common law,
the truth is legally suspended.


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