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
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